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Equipment Discussions >> Video and Electronically Assisted Astronomy

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donnie3
scholastic sledgehammer


Reged: 12/15/04
Posts: 860
Loc: bartlesville oklahoma
frustration setting in, please help! new
      #2491847 - 06/30/08 03:36 PM

hope im not upsetting anyone here with my many question on this subject but im about on the verge of giving up.the camera i bought is the dx9263sl from polarisusa. ive used different scopes, camera lens, ive used the recommended settings varied them and don't seem to get any kind of satisfactory results on dso. i focus on a bright star then pan the sky, all i see in the monitor is a few white objects (i guess thay are stars) blue and red dots. the background looks unnatural. compared to some of the photos ive seen using just the camera and camera lens is amazing! im baffled. im searching for answers. is my low cost camera not capable of pleasing dso views. is the time of year not right for (too hot) a uncooled camera. am i expecting too much of this camera, ive tried some planetary video and had some satisfying results but dso( the reason i bought the camera) is very disappointing. thanks, don

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rdaskins
member


Reged: 07/28/07
Posts: 16
Loc: Warsaw, KY USA
Re: frustration setting in, please help! new [Re: donnie3]
      #2491915 - 06/30/08 04:19 PM

Don, I'm not sure this will help, but I imagine that your low cost camera, (and I am not familiar with the model) was not designed for DSO imaging. The color Mallencam starts at $1200, not including monitor,and focal reducer etc. It works very well on DSO's. I venture to say you will not be satisfied with anything less than the Mallencam or it equal.
By the way, you mention that you "pan the sky". All the cameras I am familiar with require you to focus on an object and let the camera record and integrate the image. This takes up to two minutes on the Mallencam.


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Sky Captain
Scope Builder
*****

Reged: 11/07/04
Posts: 5743
Loc: Seattle Washington
Re: frustration setting in, please help! new [Re: donnie3]
      #2492158 - 06/30/08 06:42 PM

Quote:

hope im not upsetting anyone here with my many question on this subject but im about on the verge of giving up.the camera i bought is the dx9263sl from polarisusa.




DON'T give up!

Lets start with what mount and scope you are using, and what is the focal ratio.

You have around 2 sec. which will show plenty of faint DSO's.
In my case, I use the Meade LX200 10" with a F6.3 focal reducer and a diagonal. With just 2 sec. I get pretty amazing images.

Let me know what your using.

--------------------
Equipment Overload!
Kerry.



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donnie3
scholastic sledgehammer


Reged: 12/15/04
Posts: 860
Loc: bartlesville oklahoma
Re: frustration setting in, please help! new [Re: Sky Captain]
      #2492222 - 06/30/08 07:07 PM

sky captain: to start out with, i bought the camera to use with a 12.5-70mm lens that screws into the front of the camera and using a orion paragon camera tripod. then i tried it with my cg5 with dual drive and a c6, then went to a my orion 5" f/5 650mm short tube reflector. i will say that i could see more with the 5" reflector. i really bought the camera to mount on the paragon and use the camera lens in order to see wide field video. maybe im not sure just exactly how this type of camera works. like rdashins said" to focus on just one subject at a time. thanks for the comments, don

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sdbodin
member


Reged: 02/04/07
Posts: 69
Loc: Eastern Washington State
Re: frustration setting in, please help! new [Re: donnie3]
      #2492307 - 06/30/08 07:52 PM

Don,

Sounds like a focus problem, setup in daylight a focus on the country side. The cam works just fine in broad daylight. The lens you are using might be a CS type in which the 5mm ring needs to be removed to reach focus, or maybe vice-versa, the 5mm ring is needed if the lens is a C mount model. I have the DX8263SL, as you know, and a 12.5-75mm zoom a C mount model, and it works just fine day or night.

Of course, in daylight, sense up is OFF, AGC OFF, Shutter to 1/1000 or more or auto and lens to f11 or more.

PS, I hope you are using a REGULATED 12v power supply and not a basic Radio Shack wall wart as these will really heat up the cam.

Goodluck,
Steve

--------------------
Steve
Meade 16 LX200 GPS UHTC
Meade 4 107D SCT
Orion Express 80
Coulter optics 17.5 DOB
Orange tube dual motor C8


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Sky Captain
Scope Builder
*****

Reged: 11/07/04
Posts: 5743
Loc: Seattle Washington
Re: frustration setting in, please help! new [Re: donnie3]
      #2492308 - 06/30/08 07:52 PM Attachment (10 downloads)

Quote:

to start out with, i bought the camera to use with a 12.5-70mm lens that screws into the front of the camera




I have used mine that way too...does that lens have a manual aperture control? Make sure it is all the way open.

Quote:

went to a my orion 5" f/5 650mm short tube reflector. i will say that i could see more with the 5" reflector.




It can be used with smaller lenses\mirrors, but the larger the better.


Here is a screen shot from last night. The monitor is only 2" and I was using a 4" f1.8 C mount lens. It was on my CG5 dual drive for tracking, probably similar to yours.
Jupiter is the Bright thing near the tree, and my neighbor hood is light pollution central. Still at 2 seconds, you can see an amazing amount of stars in the background.

--------------------
Equipment Overload!
Kerry.



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Sky Captain
Scope Builder
*****

Reged: 11/07/04
Posts: 5743
Loc: Seattle Washington
Re: frustration setting in, please help! new [Re: sdbodin]
      #2492330 - 06/30/08 08:06 PM Attachment (11 downloads)

Quote:

The lens you are using might be a CS type in which the 5mm ring needs to be removed to reach focus,




Steve has a good point, I had to remove mine too.
Here is a picture of one just in case.

--------------------
Equipment Overload!
Kerry.



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Sky Captain
Scope Builder
*****

Reged: 11/07/04
Posts: 5743
Loc: Seattle Washington
Re: frustration setting in, please help! new [Re: donnie3]
      #2492336 - 06/30/08 08:10 PM Attachment (19 downloads)

Don, what about the settings you are using? does your menu screen look like mine? If so, these are the settings I have found that work very well.

--------------------
Equipment Overload!
Kerry.



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donnie3
scholastic sledgehammer


Reged: 12/15/04
Posts: 860
Loc: bartlesville oklahoma
Re: frustration setting in, please help! new [Re: Sky Captain]
      #2492489 - 06/30/08 09:56 PM

the setting on this camera are exactly the same as above. the lens, i had not one but two rings at the back end of the lens so i removed both of them and screwed the lens back in the camera. i will try using in the daytime and see what happens, on the electric supply, im using the polaris 12v system that i bought with the camera, not sure if its a regulated one, not sure if i know exactly what that means. im not much on electronics. thanks for all the replies, ill keep trying and maybe i can come up with something.ill let you all know. don

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sdbodin
member


Reged: 02/04/07
Posts: 69
Loc: Eastern Washington State
Re: frustration setting in, please help! new [Re: donnie3]
      #2492734 - 07/01/08 12:33 AM

OK don, TWO rings is too much, you need ONE. None will probably not work. This sounds like a C mount lens and it came with a ring, and the cam had a ring too. Focus is very critical and that extra ring or no ring will foul it all up.

If you got the PS-04 12vdc power supply you're probably OK, It specifies a 'Switching' power supply which is usually regulated.

This should do it,
Steve

--------------------
Steve
Meade 16 LX200 GPS UHTC
Meade 4 107D SCT
Orion Express 80
Coulter optics 17.5 DOB
Orange tube dual motor C8


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donnie3
scholastic sledgehammer


Reged: 12/15/04
Posts: 860
Loc: bartlesville oklahoma
Re: frustration setting in, please help! new [Re: sdbodin]
      #2492791 - 07/01/08 01:21 AM

thanks steve for that info, don

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donnie3
scholastic sledgehammer


Reged: 12/15/04
Posts: 860
Loc: bartlesville oklahoma
Re: frustration setting in, please help! [Re: donnie3]
      #2495582 - 07/02/08 03:13 PM

well, i finally got a number of stars on the screen last night but less then i expected. i had the dx8263sl model about 2 years age and it produced a lot more objects then this camera( dx9263sl) i think the earlier model was more sensitive. like rdashins said" the mallincam is probably the camera to purchase if one wont's to really go deep" that is if one can afford it. thanks, don

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