#21  
Old 07-03-2012, 10:19 AM
lepton3's Avatar
lepton3 (Ivan)
Registered User

lepton3 is offline
 
Join Date: Jan 2007
Location: Adelaide, Australia
Posts: 670
Karl,

Do you have any further update on the use of this camera for photometry? Are your reliability issues sorted out?
Reply With Quote
  #22  
Old 08-03-2012, 10:33 AM
Karls48 (Karl)
Registered User

Karls48 is offline
 
Join Date: Jan 2006
Location: Sydney
Posts: 753
I spoke to Bintel about week ago and Michael told me that Orion is upgrading firmware for this camera and I should receive camera in about three weeks. Im not holding my breath but on other hand with current weather it doesnt matter, as I could not use it anyhow. Searching the Web I found that other people in USA had same problem with this camera. At least the Orion is responding to the problem and tries to fix it. I will keep you updated when get it.
Reply With Quote
  #23  
Old 06-05-2012, 12:00 PM
Karls48 (Karl)
Registered User

Karls48 is offline
 
Join Date: Jan 2006
Location: Sydney
Posts: 753
I got my camera back yesterday. So far - good. No more of white lines, almost no dead pixels and cooling is working.
Reply With Quote
  #24  
Old 23-06-2012, 12:36 PM
Karls48 (Karl)
Registered User

Karls48 is offline
 
Join Date: Jan 2006
Location: Sydney
Posts: 753
Well, since I got my Orion Starshoot G3 camera back I have spend twelve nights imagining with it. Or, more correctly setting it up for best results. That included almost two nights building Darks library for wide range of temperatures. So far no problems with cooling, but Im using old 17 AH battery that charges only to 13.2V to power the camera cooling. Im scared to use 13.8V-regulated PS in case the camera would fail again.
Im using this camera with ASCOM driver and Maxim DL
With 150mm F5 refractor camera does not perform well on exposures shorter then 40 seconds, displaying random horizontal lines on most of images (vertical on my images as I automatically rotate all my images with North up) unless there is saturated bright star in the field of view.
On longer exposures 60 to 120 sec the stars of 10 mag and up get saturated. The lines occur in some images as well.. I tried to reduce gain to 0.4e per ADU but that did not work out well. So I stopped aperture of my scope to F 6.8. That gives me with 90 sec exposure range of about 8.5 to 13 mag stars to measure.
Compare to Meade DSI2, raw instrument magnitudes were closer to standard magnitudes on DSI2 then on Orion G3.
ASCOM driver got some bugs, occasionally the camera stops responding and error message pops up. Disconnecting camera (in software) and reconnecting will resume normal operation. Also selecting overscan in ASCOM driver seems to reduce occurrences of white lines in the images.
Big plus for this camera is its price, well depth and sealed CCD sensor. No dust or fogging of sensor, even on 5 deg.
I think that G3 is better suited to scopes at around F8 then F5.

LU Vel 90sec exposure 10Deg C and stack of 24 images
4 of 24 images got white lines in random position
Attached Thumbnails
Click for full-size image (LU Vel-001.jpg)
150.0 KB155 views
Click for full-size image (LU Vel-024X.jpg)
109.4 KB148 views
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 07:32 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Advertisement
Meade Australia
Advertisement
NexDome Observatories
Advertisement
OzScopes Authorised Dealer
Advertisement
SkyWatcher Australia
Advertisement
Celestron Australia
Advertisement
Lunatico Astronomical
Advertisement
Bintel
Advertisement
Astronomy and Electronics Centre
Advertisement