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mattflastro
Vendor - Astrovideo Systems


Reged: 07/31/09

Loc: Brevard County , FL
"DOBCAM" - Astronomy Video Camera for Dobsonians
      #6331849 - 01/24/14 02:19 AM Attachment (62 downloads)

Long integration Color , highest sensitivity new generation Sony ExviewHAD II CCD , from Astro-Video Systems , "DOBCAM" is the smallest astronomy video camera available today.

It fits inside any 2" focuser drawtube and comes to focus exactly in the same focuser position as regular eyepieces.

Ideal for dobsonian telescopes because you don't need a set of shorter truss tubes for it to come to focus. No scope modification needed at all!
Just slip it into the focuser and you're ready !

Highest gain , modern 32 bit camera DSP processor , comes complete with hand remote AND USB to RS485 computer control dongle and cable , 1.25" nosepiece adapter, 12VDC adapter , video and power cable, BNC to RCA adapter.
In stock now, both camera only ( DSO-1 ) and complete system DSO-S .

Extreme high gain , sensitivity , integration up to 85 sec for faint fuzzies.
Works also for planets/solar/lunar with shutter times from 1/60sec to 1/10,000 and 1/100,000 (yes, that is 10 MICROSECONDS) .
Adjustable Gamma, AGC , brightness, color balance, image sharpness, user switchable B&W mode for ultimate resolution and sensitivity .
All adjustments via on screen menu, user accessible thru the INCLUDED hand remote .

http://www.astro-video.com/dso-s-entry-level-camera-system.html

NOTE: "DOBCAM" is a trademark of Astro-Video Systems


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Bob S.
Carpal Tunnel
*****

Reged: 07/14/05

Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6332343 - 01/24/14 11:06 AM

Matt, Your new DOBCAM seems extremely innovative! As you know, one of the big bug-a-boos has always been the infocus requirements of astrovideo cameras. It seems that you have engineered a fix for this. How is the overall performance of your new camera? At the intro price of $199, it seems like an incredible deal. Bob

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mattflastro
Vendor - Astrovideo Systems


Reged: 07/31/09

Loc: Brevard County , FL
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: Bob S.]
      #6332407 - 01/24/14 11:42 AM

Quote:

Matt, Your new DOBCAM seems extremely innovative! As you know, one of the big bug-a-boos has always been the infocus requirements of astrovideo cameras. It seems that you have engineered a fix for this. How is the overall performance of your new camera? At the intro price of $199, it seems like an incredible deal. Bob




Thank you Bob , yes, you're absolutely right .
Lack of in focus travel is a big problem with larger cameras but the "DOBCAM" fixes it for any scope with a 2" focuser .

Performance is absolutely fantastic especially for this price range .
It includes the hand remote and USB to camera computer control cable , not separate expen$ive options .
This is the best option on the market today , it beats camera systems costing hundreds more .

It has both the advantages and disadvantages of uncooled cameras and is aimed at lightweight portable scopes.

The camera measures only 1.98" in diameter and 3" length including the BNC connector.
It weighs only 4.5 oz and will not require rebalancing the scope

One other major advantage is very low current consumption down to 0.1A . A small 7Ah 12V battery lasts for a whole week of every night use .

The disadvantage of lack of cooling is that it can only be used up to 85 sec integration with the in camera frame stacking for noise reduction .

For real budget restricted projects, the camera is available as body only + 1.25" to C-mount adapter for only $99 , still compatible with the hand remote and USB to RS485 computer control.
This camera only option would also work for people who enjoy DIY , I'm offering a free hand remote schematic .


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mattflastro
Vendor - Astrovideo Systems


Reged: 07/31/09

Loc: Brevard County , FL
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6338486 - 01/27/14 10:44 AM Attachment (28 downloads)

Quote:

Long integration Color , highest sensitivity new generation Sony ExviewHAD II CCD , from Astro-Video Systems , "DOBCAM" is the smallest astronomy video camera available today.

It fits inside any 2" focuser drawtube and comes to focus exactly in the same focuser position as regular eyepieces.

Ideal for dobsonian telescopes because you don't need a set of shorter truss tubes for it to come to focus. No scope modification needed at all!
Just slip it into the focuser and you're ready !

Highest gain , modern 32 bit camera DSP processor , comes complete with hand remote AND USB to RS485 computer control dongle and cable , 1.25" nosepiece adapter, 12VDC adapter , video and power cable, BNC to RCA adapter.
In stock now, both camera only ( DSO-1 ) and complete system DSO-S .

Extreme high gain , sensitivity , integration up to 85 sec for faint fuzzies.
Works also for planets/solar/lunar with shutter times from 1/60sec to 1/10,000 and 1/100,000 (yes, that is 10 MICROSECONDS) .
Adjustable Gamma, AGC , brightness, color balance, image sharpness, user switchable B&W mode for ultimate resolution and sensitivity .
All adjustments via on screen menu, user accessible thru the INCLUDED hand remote .

http://www.astro-video.com/dso-s-entry-level-camera-system.html

NOTE: "DOBCAM" is a trademark of Astro-Video Systems




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Jeff Morgan
Postmaster
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Reged: 09/28/03

Loc: Prescott, AZ
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6346713 - 01/31/14 08:52 AM

Quote:



The disadvantage of lack of cooling is that it can only be used up to 85 sec integration with the in camera frame stacking for noise reduction .




Well beyond alt-az field rotation limits, so that doesn't sound like a limitation at all.

What is the camera resolution?


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mattflastro
Vendor - Astrovideo Systems


Reged: 07/31/09

Loc: Brevard County , FL
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: Jeff Morgan]
      #6346732 - 01/31/14 09:07 AM

Quote:

Quote:



The disadvantage of lack of cooling is that it can only be used up to 85 sec integration with the in camera frame stacking for noise reduction .




Well beyond alt-az field rotation limits, so that doesn't sound like a limitation at all.

What is the camera resolution?



The camera output is standard NTSC resolution and can be used with any composite video input monitor or TV .


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Relativist
Post Laureate
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Reged: 10/11/03

Loc: OC, CA, USA
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6347008 - 01/31/14 11:23 AM

Can we see a pic of the camera outside of the focuser? Is there any mechanical part on the body of the camera that helps it fit a 2" focuser? Lastly, is there a mechanism to prevent the camera from falling into the scope through the focuser?

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mattflastro
Vendor - Astrovideo Systems


Reged: 07/31/09

Loc: Brevard County , FL
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: Relativist]
      #6347776 - 01/31/14 06:10 PM

Quote:

Can we see a pic of the camera outside of the focuser? Is there any mechanical part on the body of the camera that helps it fit a 2" focuser? Lastly, is there a mechanism to prevent the camera from falling into the scope through the focuser?



Yes Curtis, the camera fits properly and doesn't fall inside either.


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ScottAz
Fleet Navigator
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Reged: 02/06/05

Loc: Kenosha, Wisconsin
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6349215 - 02/01/14 01:39 PM

Here's a link to a pic, Curtis: Link. Looks pretty cool ... and 85 seconds is great if your big Dob is riding a platform.

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Chris A
Pooh-Bah


Reged: 02/03/07

Loc: Toronto, Canada
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: ScottAz]
      #6357948 - 02/05/14 03:38 PM

Matt please don't get me wrong but it looks like the tripod adapter was remove so the camera will fit into a 2" focuser? If this is the case then I measured and found that there will be still some play with the camera inside the focuser since a. the camera is slightly about 1 mm smaller than a 2" eyepiece and b. the camera is not round like a 2" eyepiece. Since there will be some slack how can one obtain a squared (orthogonal) camera within the 2" focuser?. Also since the camera does not have a stop like an eyepiece what is preventing the camera from falling through and hitting ones diagonal mirror or even worse a primary mirror in a Dob? I did check the link that Scott provided and it does not show anything that adresses these issues. Thank you in advance for answering Curtis's and my questions.

Chris


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Thomas Karpf
Carpal Tunnel


Reged: 02/09/09

Loc: Newington, CT
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: Chris A]
      #6357967 - 02/05/14 03:46 PM

Quote:

Matt please don't get me wrong but it looks like the tripod adapter was remove so the camera will fit into a 2" focuser? If this is the case then I measured and found that there will be still some play with the camera inside the focuser since a. the camera is slightly about 1 mm smaller than a 2" eyepiece and b. the camera is not round like a 2" eyepiece. Since there will be some slack how can one obtain a squared (orthogonal) camera within the 2" focuser?. Also since the camera does not have a stop like an eyepiece what is preventing the camera from falling through and hitting ones diagonal mirror or even worse a primary mirror in a Dob?

Chris




Look at the first picture above. Connect the yellow cable to the camera before putting it into the focuser, and you can pretty much guarantee that the camera cannot slip in to strike the secondary and/or primary.


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Chris A
Pooh-Bah


Reged: 02/03/07

Loc: Toronto, Canada
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: Thomas Karpf]
      #6357984 - 02/05/14 03:59 PM

Thank you Tom, but I think a little more secure system rather then a cable is needed esp. since Dob's can get quite $$. I would think that some kind of a metal stop would be required for safety like perhaps machining a wider 2" adapter and threading it onto the front of the camera would be more practical.

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herrointment
Post Laureate
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Reged: 03/12/11

Loc: North of Hwy. 64
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: Chris A]
      #6358007 - 02/05/14 04:10 PM

I've been following Astro Videosystems products with interest, but come on. I expect better than this.

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moonbase1
journeyman


Reged: 01/27/14

Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: herrointment]
      #6358065 - 02/05/14 04:53 PM

My first post here. I agree this is lame and dangerous.
This so called camera have forced me to be uncomfortable and realize its danger with my Obsession 25".

Albert E.


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mattflastro
Vendor - Astrovideo Systems


Reged: 07/31/09

Loc: Brevard County , FL
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: moonbase1]
      #6358714 - 02/05/14 11:09 PM

Quote:

My first post here. I agree this is lame and dangerous.
This so called camera have forced me to be uncomfortable and realize its danger with my Obsession 25".

Albert E.



I apologize for my "so called camera" forcing you to feel uncomfortable and/or feel any danger for you or your belongings.
This hobby was supposed to be serene and offer us shelter from stress. Mea culpa.
I can solemnly assure you that my cameras will never attack your scope .

There is a carefully designed , using a very expensive aerospace grade FEA software , metal part that attaches the camera SECURELY to the 2" focuser tube .
It was not included in the pictures, either for clarity , to better illustrate how deep the camera could go into the focuser.

Because I am a pragmatic person and don't necessarily trust all software results, I ran my truck over it and it didn't budge !!! The camera stayed attached after my humble crash dummy test .
I wanted to reassure them that no camera falls out of the focuser are possible AT ALL.


Edited by BRisley (02/06/14 12:35 AM)


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herrointment
Post Laureate
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Reged: 03/12/11

Loc: North of Hwy. 64
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6358778 - 02/05/14 11:48 PM

Very well then, appearances can be deceiving.



Edited by BRisley (02/06/14 12:17 AM)


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mattflastro
Vendor - Astrovideo Systems


Reged: 07/31/09

Loc: Brevard County , FL
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: herrointment]
      #6358781 - 02/05/14 11:54 PM

Quote:

Very well then, appearances can be deceiving.





And in all seriousness, there IS a metal part, not pictured, that was tested and holds the camera as described . It didn't really need testing , being obviously able to perform its function but I always try to be as thorough as possible .

Edited by BRisley (02/06/14 12:18 AM)


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Chris A
Pooh-Bah


Reged: 02/03/07

Loc: Toronto, Canada
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6358805 - 02/06/14 12:08 AM

Matt I was only asking a few straight forward questions and this being a vendors site, I think there should not be any issues with asking questions that are related to your product(s).

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herrointment
Post Laureate
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Reged: 03/12/11

Loc: North of Hwy. 64
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6358806 - 02/06/14 12:08 AM

Ok then......

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Chris A
Pooh-Bah


Reged: 02/03/07

Loc: Toronto, Canada
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: Chris A]
      #6358809 - 02/06/14 12:11 AM

Okay fine there is a metal part which prevents the camera from sliding all the way through the focuser. Now I understand and thank you!

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mattflastro
Vendor - Astrovideo Systems


Reged: 07/31/09

Loc: Brevard County , FL
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: herrointment]
      #6358843 - 02/06/14 12:40 AM

Quote:

Ok then......when the tax return comes in I'm going to buy one of your cameras. You'll hear from me in a few weeks.....the name is Jim Egstad.



Jim, thanks for your interest. I'm looking forward to helping out.


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Relativist
Post Laureate
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Reged: 10/11/03

Loc: OC, CA, USA
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6358949 - 02/06/14 02:14 AM

Quote:

Quote:

Can we see a pic of the camera outside of the focuser? Is there any mechanical part on the body of the camera that helps it fit a 2" focuser? Lastly, is there a mechanism to prevent the camera from falling into the scope through the focuser?



Yes Curtis, the camera fits properly and doesn't fall inside either.




Thanks Matt! I'm really interested in this since it has the potential of solving the in-focus problem for dobs when used with focal reducers. My preference has always been Newtonians, so this is great.

Have you any advice about what focal reducer/spacer combination I would be able to use with a dob like mine 10" f/5? I'm hoping to simply be able to directly use a low cost 0.5x focal reducer.

P.S. my question about the security of the camera was asked because of direct experience with things falling on a primary.

Edited by Relativist (02/06/14 03:16 AM)


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mattflastro
Vendor - Astrovideo Systems


Reged: 07/31/09

Loc: Brevard County , FL
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: Relativist]
      #6359975 - 02/06/14 03:31 PM

Quote:

Quote:

Quote:

Can we see a pic of the camera outside of the focuser? Is there any mechanical part on the body of the camera that helps it fit a 2" focuser? Lastly, is there a mechanism to prevent the camera from falling into the scope through the focuser?



Yes Curtis, the camera fits properly and doesn't fall inside either.




Thanks Matt! I'm really interested in this since it has the potential of solving the in-focus problem for dobs when used with focal reducers. My preference has always been Newtonians, so this is great.

Have you any advice about what focal reducer/spacer combination I would be able to use with a dob like mine 10" f/5? I'm hoping to simply be able to directly use a low cost 0.5x focal reducer.

P.S. my question about the security of the camera was asked because of direct experience with things falling on a primary.



Curtis, you're welcome.
What reducer type can be used depends on several camera and scope parameters.
Sensor size is one of these parameters. 1/2" sensors being larger need a larger image circle and allow less reduction for a given scope . Reducers that work well for example with 1/3" sensors might vignette with larger sensors, again depending on specifics. Also, larger optical aberrations are present at the edge of the image circle, which might fall outside of a 1/3" sensor area but still be inside a 1/2" sensor .
For a typical Newtonian, lower cost 1.25" 0.5x reducers should work. However, I haven't tried any with 1/2" CCDs because I don't own such a camera now (sold my Stellacam 2 some time ago) . I can only speak of how they work with 1/3" sensors.


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Relativist
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Reged: 10/11/03

Loc: OC, CA, USA
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6359994 - 02/06/14 03:38 PM

I'm specifically interested in the dobcam, which I believe is a 1/3" sensor?

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mattflastro
Vendor - Astrovideo Systems


Reged: 07/31/09

Loc: Brevard County , FL
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: Relativist]
      #6360459 - 02/06/14 07:17 PM

Quote:

I'm specifically interested in the dobcam, which I believe is a 1/3" sensor?



Yes, you're correct. The "Dobcam" uses 1/3" ExviewHAD II sensors.
What dob and what focal reducers do you already own or have access to ? I saw you wrote about a 10" F/5 ? With these details I'd be able to suggest some simple tests for you to perform which would show you clearly what works and what doesn't , without having to spend money to buy anything.


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Relativist
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Reged: 10/11/03

Loc: OC, CA, USA
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6360628 - 02/06/14 08:39 PM

Ok ill PM you as to not further sidetrack the thread.

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budman1961
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Reged: 02/25/11

Loc: Springfield, MO
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians *DELETED* new [Re: Relativist]
      #6363270 - 02/08/14 02:13 AM

Post deleted by budman1961

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BigDob Al
super member


Reged: 12/31/13

Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: budman1961]
      #6363532 - 02/08/14 08:54 AM

Quote:

Is there any chance of an image of the "lip" that prevents the camera from slipping down the focuser tube?

I am interested in a Newt for imaging, and in-focus is a concern.



I don't know about you guys but this "lip" as you call it exists in all eyepieces, 2" to 1.25" adapters , focusers and all things that go into a focuser drawtube.
Hardly news and hardly worth a question. Asking about it is like saying that unless you saw the steering wheel of a car you couldn't be sure it's a car. C'mon guys , ask something relevant about cameras . I'd like to learn for example how good does this work in a scope . It'd be fun to see a comparison between this $199 system and the me-too copycat that sprouted immediately here for like double the price but using apparently the same electronics. I'd like to see what would I be getting if I bought one or the other ? What would I be getting EXTRA if I bought the big heavy one and pay double the price ? Maybe a separate thread and compare the 2 ?

Clear Skies,
Al


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moonbase1
journeyman


Reged: 01/27/14

Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6364126 - 02/08/14 01:52 PM

Quote:

Quote:

My first post here. I agree this is lame and dangerous.
This so called camera have forced me to be uncomfortable and realize its danger with my Obsession 25".

Albert E.



I apologize for my "so called camera" forcing you to feel uncomfortable and/or feel any danger for you or your belongings.
This hobby was supposed to be serene and offer us shelter from stress. Mea culpa.
I can solemnly assure you that my cameras will never attack your scope .

There is a carefully designed , using a very expensive aerospace grade FEA software , metal part that attaches the camera SECURELY to the 2" focuser tube .
It was not included in the pictures, either for clarity , to better illustrate how deep the camera could go into the focuser.

Because I am a pragmatic person and don't necessarily trust all software results, I ran my truck over it and it didn't budge !!! The camera stayed attached after my humble crash dummy test .
I wanted to reassure them that no camera falls out of the focuser are possible AT ALL.





Sir,

I sense a negative tone and frustration in your reply. Sorry if I have caused any uneasy situation. I was simply stating a rather strange design comment. Not being negative one, you must admit before anyone stick a type of device into a 15,000.00 telescope their concern is valid.

In any case thank you for replying with a rather negative note.

Albert E.
Los Angeles
USA


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mclewis1
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Reged: 02/25/06

Loc: New Brunswick, Canada
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: BigDob Al]
      #6364446 - 02/08/14 04:40 PM

Al,

A friendly suggestion ... if you make assumptions and post them in forums like this you can stir up some likely unwanted attention and comments ... especially if those aren't very good assumptions.

What we know about those two cameras ...

One is $199 and is essentially an existing camera (the DSO-1 slightly modified by removing an external part) with some nice accessories. It is shipping now.

The other is $349 (not double the price). It's mounted in a custom enclosure (extra cost). It comes with a 2" .5x focal reducer (extra cost) and a 2" barrel adapter (extra cost). It's not shipping yet and we don't know about it's remote control. We also don't know what the camera's characteristics are other than it also has a 1/3" sensor (Sony ICX672AKA EXview HAD II), and 17s NTSC exposures with 5x internal stacking options.

Lots of differences (more cost and more value) ... so hardly a copy cat, but I also think the timing of the announcement isn't a coincidence (but the camera was hardly just something Rock whipped up in response). You are however absolutely correct to question whether those differences have any value to you. The problem is that we just don't know all the details ... yet.

It would indeed also be useful to see a live comparison but since the Mallincam camera isn't shipping yet we'll have to wait a while ... and even then real side by side comparisons are very hard to come by.

I too have some assumptions about the Mallincam camera, but past experience has taught me that Rock often has a few surprises in his products (both good and bad) so it's probably best to wait and see before making public statements.

Edit: to add the 2" adapter

Edited by mclewis1 (02/09/14 10:19 AM)


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RichardHC
member


Reged: 09/18/13

Loc: South Australian Riverland
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: moonbase1]
      #6365084 - 02/08/14 10:41 PM

Quote:

My first post here. I agree this is lame and dangerous.
This so called camera have forced me to be uncomfortable and realize its danger with my Obsession 25".

Albert E.





Hi Albert, welcome to the Forum.

I sense that English may not be your first language so I think you need to know that saying something is "so called" is a suggestion that it isn't really what it claims to be.

This is quite obviously a camera so the rather hostile response you received was possibly because of your poor choice of words.

Posters here are (mostly) harmless.


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RichardHC
member


Reged: 09/18/13

Loc: South Australian Riverland
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mclewis1]
      #6365104 - 02/08/14 10:56 PM

Quote:

Al,

.......
One is $199 and is essentially an existing camera (the DSO-1 slightly modified by removing an external part) with some nice accessories. It is shipping now.

The other is $349 (not double the price). It's mounted in a custom enclosure (extra cost). It comes with a 2" .5x focal reducer (extra cost). It's not shipping yet and we don't know about it's remote control. We also don't know what the camera's characteristics are other than it also has a 1/3" sensor (Sony ICX672AKA EXview HAD II), and 17s NTSC exposures with 5x internal stacking options.

Lots of differences (more cost and more value) ... ....




Rock's housing looks nice and screws directly onto the reducer - and I think the 0.5 reducer Rock is including in his kit is a pretty good idea - having tried out my SCB2000 on a manual mount 8" F5 Dobsonian I'm a little concerned users may be disappointed with the results they get on a 1/3" chip - it really is a small field of view - 16.5 by 12.4 arcmin for 1m FL - and without a sidereal drive you could cross that completely in well under a minute (the actual speed depends on the declination).

My 2" GSO 0.5 Reducer cost $69 Australian so I guess around $60 US retail.

Whilst they are great visual instruments, I'm not convinced a Dob is that well suited to video astronomy. (Perhaps I shouldn't be in this thread!)


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astronet1
member


Reged: 11/07/13

Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: RichardHC]
      #6365249 - 02/09/14 12:41 AM

I've been waiting on my astro-video camera in the mail for almost a month now, and have yet to receive a tracking number for 12 days since I was told I'd be sent one the following day. I am sure you're just busy Matt but some communication would be nice.

Edited by astronet1 (02/09/14 12:41 AM)


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mclewis1
Thread Killer
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Reged: 02/25/06

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Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: RichardHC]
      #6365755 - 02/09/14 10:27 AM

Quote:

Rock's housing looks nice and screws directly onto the reducer - and I think the 0.5 reducer Rock is including in his kit is a pretty good idea - having tried out my SCB2000 on a manual mount 8" F5 Dobsonian I'm a little concerned users may be disappointed with the results they get on a 1/3" chip - it really is a small field of view - 16.5 by 12.4 arcmin for 1m FL - and without a sidereal drive you could cross that completely in well under a minute (the actual speed depends on the declination).

Whilst they are great visual instruments, I'm not convinced a Dob is that well suited to video astronomy. (Perhaps I shouldn't be in this thread!)



Richard, you reminded me of something I left out of my post above. The Pro DOB II also comes with Rock's 2" barrel to C mount adapter, this is what the focal reducer threads onto. This unit also has 1.25" filter threads internally so you can also use less expensive filters if you don't mind the possible vignetting in a very fast setup.

It'll be interesting to see how many Dob owners go for this camera or the DOBCAM. I know what many of them really want would be the same body with something more like the MC Jr. Pro camera internally (1/2" sensor, slightly longer exposures).

And I just realized that we've seriously hijacked Matt's announcement thread (forgot which "Dob" style camera thread this originally was). I guess any more Mallincam comments should go in the other thread ... sorry about that Matt.

Edited by mclewis1 (02/09/14 10:32 AM)


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mattflastro
Vendor - Astrovideo Systems


Reged: 07/31/09

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Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: astronet1]
      #6366083 - 02/09/14 01:17 PM

Quote:

I've been waiting on my astro-video camera in the mail for almost a month now, and have yet to receive a tracking number for 12 days since I was told I'd be sent one the following day. I am sure you're just busy Matt but some communication would be nice.




Hi Terry,
Your camera has been paid via Paypal . When it was shipped, the tracking number was entered into Paypal and Paypal sends it automatically to the buyer. I assume from what you're writing that you use a different Paypal email that you're not checking very often . Please check your Paypal email and see if you received the tracking info. I'll email it to you tonight when I get home if you supply an email address . Up to now, you haven't contacted me via email.


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astronet1
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Reged: 11/07/13

Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6366227 - 02/09/14 02:22 PM

Quote:

Quote:

I've been waiting on my astro-video camera in the mail for almost a month now, and have yet to receive a tracking number for 12 days since I was told I'd be sent one the following day. I am sure you're just busy Matt but some communication would be nice.




Hi Terry,
Your camera has been paid via Paypal . When it was shipped, the tracking number was entered into Paypal and Paypal sends it automatically to the buyer. I assume from what you're writing that you use a different Paypal email that you're not checking very often . Please check your Paypal email and see if you received the tracking info. I'll email it to you tonight when I get home if you supply an email address . Up to now, you haven't contacted me via email.




Ah yes, that would be the problem as the camera was paid for by my father (with his paypal) as a birthday present. I assumed when you said "email me a tracking number" it would have been through a PM on cloudynights as that's where we've been communicating. I've PM'd you my email address, thanks.


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RichardHC
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Reged: 09/18/13

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Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mclewis1]
      #6367066 - 02/09/14 08:10 PM

Quote:

.... I know what many of them really want would be the same body with something more like the MC Jr. Pro camera internally (1/2" sensor, slightly longer exposures).

And I just realized that we've seriously hijacked Matt's announcement thread (forgot which "Dob" style camera thread this originally was). I guess any more Mallincam comments should go in the other thread ... sorry about that Matt.




Yes, this is Matt's thread and the Dobcam does look like a great piece of kit. But at risk of continuing the hijack, I think the decision to use the more sensitive 1/3" chip is correct in the Dobsonian application where tracking accuracy and field rotation will severely limit the exposure times usable.

Some of the stuff about the risk of dropping it into the tube does look a bit picky to me - I use a QHY that could, with an effort, be dropped through the focuser but there's no shortage of ways to avoid doing that. (I think someone talked about the risk to a $15,000 scope - that'd be some Dob!).


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astronet1
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Reged: 11/07/13

Re: "DOBCAM" - Astronomy Video Camera for Dobsonians *DELETED* new [Re: RichardHC]
      #6370539 - 02/11/14 02:22 PM

Post deleted by astronet1

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mattflastro
Vendor - Astrovideo Systems


Reged: 07/31/09

Loc: Brevard County , FL
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians *DELETED* new [Re: astronet1]
      #6370988 - 02/11/14 07:06 PM

Post deleted by mattflastro

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astronet1
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Reged: 11/07/13

Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6372989 - 02/12/14 07:25 PM

Weird. I don't know why that posted it again? I haven't been on cloudy nights since then. All I can think is that I wrote that on my mobile phone and somehow it went back to the page and reposted it?

Anyways it came today and I am very excited to use it tonight.

Edited by astronet1 (02/12/14 08:05 PM)


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jambi99
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Reged: 08/14/10

Loc: Québec, Canada
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: BigDob Al]
      #6380422 - 02/17/14 02:30 AM

There is a lot of copy-cat in the air lately.

Matt, thanks for shaking the tree...


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mattflastro
Vendor - Astrovideo Systems


Reged: 07/31/09

Loc: Brevard County , FL
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6418880 - 03/21/14 09:48 AM Attachment (18 downloads)

Here is the Astro-Video Systems 2" INFOCUS adapter for the AVS DSO-1 , DSO-S , MK II/III and APU-1 cameras .
This adapter slides the camera forward INTO the 2" focuser drawtube AND holds the camera securely in place ,without any possibility of the camera slipping further in .
This is a unique Astro-Video Systems design that fits only cameras with this body size and type. It does not fit other camera sizes.
The INFOCUS adapter moves the camera toward the focal plane by at least one inch compared with the standard 1.25" camera nosepiece and by at least 30mm when compared with any other 2" adapters.
This amount is enough to bring the camera to focus in any dobsonian without requiring shorter truss tubes . IT is also useful for refractors that couldn't reach focus .

Another unique feature of the 2" INFOCUS adapter is that the camera can use all 1.25" accessories without any change.
The Varioreducer can be used together with the INFOCUS adapter without any change to the reduction factors and without any change to the reducer to camera distance or spacers.


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mattflastro
Vendor - Astrovideo Systems


Reged: 07/31/09

Loc: Brevard County , FL
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6418882 - 03/21/14 09:49 AM Attachment (16 downloads)

more...

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mattflastro
Vendor - Astrovideo Systems


Reged: 07/31/09

Loc: Brevard County , FL
Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6418886 - 03/21/14 09:51 AM Attachment (14 downloads)

and front view shown with a 1.25" nosepiece next to it...

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mclewis1
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Re: "DOBCAM" - Astronomy Video Camera for Dobsonians new [Re: mattflastro]
      #6434197 - 03/28/14 11:21 AM

Matt,

Nice product. Thanks for showing us exactly what is going on.

Good point about refractors. With all this discussion about Dobs I think it has been lost that many refractors have in focus issues when using video cameras with focal reducers.


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