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Equipment Discussions >> Video and Electronically Assisted Astronomy

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greg
scholastic sledgehammer


Reged: 01/25/05

Loc: Central Ca.
Re: Astro Video Image Gallery new [Re: mclewis1]
      #4876957 - 10/24/11 01:20 AM

To me it doesn't matter what type of camera is used, if it is being used in a way that it was not intended for but suits our purpose of single semi live viewing... then who cares....

As long as any processing is done seamlessly and on the fly so that viewers of the broadcast don't see it,and If you bump your scope and see it in the next refresh.... then to me thatís near live...

If you can take that image and get it onto NSN and we can all see you bump your scope on the next refresh, then to me itís a live broadcast, and if we can figure out how to come up with single images, one right after the other and they look good... then I don't see a problem.

We are just using different types of equipment to show the best single images we can... and I think this will push the envelope and produce better cameras and equipment for doing what we all love.

GregW


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greg
scholastic sledgehammer


Reged: 01/25/05

Loc: Central Ca.
Re: Astro Video Image Gallery new [Re: nomosnow]
      #4876964 - 10/24/11 01:32 AM

Very nice capture of part of the Veil Nebula.

GregW


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nytecam
Postmaster


Reged: 08/20/05

Loc: London UK
Re: Astro Video Image Gallery new [Re: mclewis1]
      #4877033 - 10/24/11 04:13 AM

Quote:

Perhaps we should drop any technology specific restrictions in this forum and instead focus only on the presentation of the images? For example something like "if the image isn't viewable in say X seconds or doesn't look like it does "live" then in won't be displayed here"?


Mark - once-upon-a-time video was *instant* 'cos that's what it WAS but then x512 sensup came it wasn't instant any more but *delayed viewing*. The hybrid video/CCD Mallincam Xtreme blew a hole in the exclusive *video-only-here* argument

Now Lyle has done an app for his digital CCD cam to emulate video and integration times, even for video, have gone sky high

Because I don't have a video-cam [I feel unwelcome here] so I post my CCD snaps anon on CCD Imaging [with occasional links here] as the brevity of my exposures in no match for hours most imagers there use. I still video-view my images on download and have done so for years. Now I need an software app, that does what the video knobs do, to tweak my pics on display

Edited by nytecam (10/24/11 04:14 PM)


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Dragon Man
Carpal Tunnel
*****

Reged: 03/07/06

Loc: Snake Valley, Australia
Re: Astro Video Image Gallery new [Re: greg]
      #4877036 - 10/24/11 04:15 AM

To differentiate between 'Video & Electronically Assisted' and non video, once you start stacking images, or applying Post Processing, then it belongs in the imaging Forums.

But don't make the mistake of categorising this forum as 'Video' only, and what defines Video.
This forum is about the electronic 'Observational' tools you use.

Almost any form of camera or electronic visual aid is applicable in this Forum as long as it can give the observer/observers a view of what the scope/lens sees without the need to be separately downloaded as a still image then tweaked for viewing. That then becomes 'Imaging', not observing.
If your equipment becomes an Observing tool, then it is acceptable.

There is no time limit in seconds. Some great 'Live' views have 'minutes' of integration.
OK, they may not be exact 'real-time' 'Live', but they are the closest you can get without becoming 'imaging'.

This Forum also covers other 'Live/semi Live' observing methods like Image Intensifiers and electronic eyepieces, Webcams, Lodestars, DSI's, DSLR's with 'Live View' etc. It's all about electronically 'observing'.

From the Image Posting and Guidelines: HERE 'The spirit of this forum is about the hardware that we use to enhance the visual experience in Astronomy'

The images that are acceptable in the Gallery are non-post-processed 'Screen Grabs' from your 'video or electronically assisted' observational tool.

We aren't restricted to just Video cameras.


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lunar
Carpal Tunnel


Reged: 07/03/10

Re: Astro Video Image Gallery new [Re: Dragon Man]
      #4878214 - 10/24/11 06:48 PM

Quote:

Your stars look very good Lyle. Nice and round.
Great captures

Quote:

Quote:


So, now you can say you have seen the South Celestial Pole




I looked at the image before I read your text, Ken....my first thought was, "wow, and I thought I had coma problems..."







and here are some Screen Grabs from last nights Broadcast

First up -
NGC 1365 Barred Spiral Galaxy in Fornax
Mallincam Xtreme, ED80, o.6x FR, 56 second imtegration




That's a good joke

By the way, your images are very nice.

Clear skies,
Brandon Doyle


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Dragon Man
Carpal Tunnel
*****

Reged: 03/07/06

Loc: Snake Valley, Australia
Re: Astro Video Image Gallery new [Re: lunar]
      #4881284 - 10/26/11 12:14 PM Attachment (26 downloads)

Had a fantastic night in NSN again tonight (when the clouds behaved and thinned out for a while)
and one of my friends here in Oz came in and asked to see the new Supernova in IC 4901 discovered by another Aussie.

I said I didn't know about it so we went to look at it.
Knowing that IC 4901 is so small and faint that it isn't even listed in Cartes du Ciel, I thought we would have trouble seeing anything, plus the fact that I am only using an ED80!

Well, we went there, and SURPRISE! There it was! The Mallincam Xtreme has done it's job proudly

It was tiny due to me using a o.6x Focal Reducer as well, but it was visible. The NSN viewers saw it too
You can even just make out the spiral arms of the Galaxy itself too!

Here is the screen grab I got off the broadcast. The Supernova is the brightish star attached to the bottom of the tiny galaxy in the centre of the FOV:


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Dragon Man
Carpal Tunnel
*****

Reged: 03/07/06

Loc: Snake Valley, Australia
Re: Astro Video Image Gallery new [Re: Dragon Man]
      #4881296 - 10/26/11 12:20 PM Attachment (19 downloads)

and here I have marked IC4901, the Supernova (so you can see exactly where it is) and an even smaller fainter Galaxy ESO 142-51 to show just how good the Mallincam Xtreme is in a little ED80 in dark Skies, even with thin cloud cover.

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altair1956
super member
*****

Reged: 07/05/09

Loc: Light polluted central Mass
Re: Astro Video Image Gallery new [Re: Dragon Man]
      #4881622 - 10/26/11 03:16 PM

Awesome Ken! Thanks for sharing.
How long of an exposure time did you use?


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Dragon Man
Carpal Tunnel
*****

Reged: 03/07/06

Loc: Snake Valley, Australia
Re: Astro Video Image Gallery new [Re: altair1956]
      #4882594 - 10/27/11 12:22 AM

Quote:

Awesome Ken! Thanks for sharing.
How long of an exposure time did you use?




58 second integrations


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Dragon Man
Carpal Tunnel
*****

Reged: 03/07/06

Loc: Snake Valley, Australia
Re: Astro Video Image Gallery new [Re: Dragon Man]
      #4896931 - 11/04/11 07:02 AM Attachment (14 downloads)

I am broadcasting right now and just dropped in to show you my Screen Grab of the Moon from NSN

Mallincam Xtreme, ED80, no Focal Reducer, using the 'Moon' settings, 1/1500th of a second


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Dragon Man
Carpal Tunnel
*****

Reged: 03/07/06

Loc: Snake Valley, Australia
Re: Astro Video Image Gallery new [Re: Dragon Man]
      #4897161 - 11/04/11 10:58 AM Attachment (16 downloads)

and another one from tonight's Broadcast. NGC 253 Silver Coin Galaxy in Sculptor.

This is also a screen grab (no processing) from my little ED80, with no Focal Reducer, in strong moon light, with thin cloud.

I reckon it is pretty amazing for a test of a Mallincam Xtreme in a non-focal-reduced ED80 in these conditions
80 seconds integration.


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JimT
sage
*****

Reged: 08/13/05

Loc: Milky Way Galaxy
Re: Astro Video Image Gallery new [Re: Dragon Man]
      #4898701 - 11/05/11 11:35 AM Attachment (16 downloads)

Two from last night using the VRC 12. Int was at about 2 and 1/2 and AGC was at 4. MFR5 , UHC filter.

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JimT
sage
*****

Reged: 08/13/05

Loc: Milky Way Galaxy
Re: Astro Video Image Gallery new [Re: JimT]
      #4898706 - 11/05/11 11:36 AM Attachment (22 downloads)

The other one from last night.

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greg
scholastic sledgehammer


Reged: 01/25/05

Loc: Central Ca.
Re: Astro Video Image Gallery new [Re: JimT]
      #4899602 - 11/05/11 09:51 PM

Very Nice Jim.... Which Camera?

GregW


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Dragon Man
Carpal Tunnel
*****

Reged: 03/07/06

Loc: Snake Valley, Australia
Re: Astro Video Image Gallery new [Re: greg]
      #4899656 - 11/05/11 10:26 PM

Great results Jim.
The stars are nice and tight
Looks to be a good scope


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Dragon Man
Carpal Tunnel
*****

Reged: 03/07/06

Loc: Snake Valley, Australia
Re: Astro Video Image Gallery new [Re: Dragon Man]
      #4899731 - 11/05/11 11:29 PM Attachment (17 downloads)

For my attempt last night, I was Testing a Meade SN10 for Video.

The SN10 has a native Focal Ratio of f4, and at 10" that sounds mighty nice for the Mallincam. Now add the 0.6x FR making it f2.4

Here are my first test results with less than perfect focus, 80% Moon, and thin to medium cloud.
Mallincam Xtreme, SN10 scope, 0.6x FR, EQ6 mount.
All are screen grabs from my NSN broadcast with NO processing at all.

The first thing I noticed is that I had to use less than half the integration times I had been using in all my previous scopes! Cool!

The screen Grabs are quite poor due to the Moon and cloud, but I'm happy with the results of this scope so far. Looks very promising.

I have also included the Mallincam software settings to show what I did with the software and the Integration times for each object.

First up is NGC 253 at only 12 seconds!!!


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Dragon Man
Carpal Tunnel
*****

Reged: 03/07/06

Loc: Snake Valley, Australia
Re: Astro Video Image Gallery new [Re: Dragon Man]
      #4899737 - 11/05/11 11:31 PM Attachment (14 downloads)

Next up is:

NGC 1365 Barred Spiral Galaxy in Fornax at 20 seconds


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Dragon Man
Carpal Tunnel
*****

Reged: 03/07/06

Loc: Snake Valley, Australia
Re: Astro Video Image Gallery new [Re: Dragon Man]
      #4899740 - 11/05/11 11:32 PM Attachment (12 downloads)

Next one is:

Tarantula Nebula in the LMC at only 17 seconds integration


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Dragon Man
Carpal Tunnel
*****

Reged: 03/07/06

Loc: Snake Valley, Australia
Re: Astro Video Image Gallery new [Re: Dragon Man]
      #4899741 - 11/05/11 11:34 PM Attachment (15 downloads)

Next up is:

A nice little trio of Galaxies in Volans. Notice the very loose 'S' shape in the largest one. 20 seconds integration.


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Dragon Man
Carpal Tunnel
*****

Reged: 03/07/06

Loc: Snake Valley, Australia
Re: Astro Video Image Gallery new [Re: Dragon Man]
      #4899745 - 11/05/11 11:36 PM Attachment (15 downloads)

and the last one for this test was 47 Tuc, the 2nd largest Globular Cluster in the sky.

Get this!!! 3 seconds integration!!!!


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