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DSLR v CCD

Members: 13
Latest Activity: Jun 30, 2011

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Started by Trevor Woodrow. Last reply by Trevor Woodrow Jun 30, 2011. 2 Replies

Hi All,I created this group to discuss the pro and cons of both types of astro imaging: DSLR and CCD. I was prompted by a series of posts on one of my pics and realized that others could benefit from…Continue

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Comment by Bob W on March 27, 2011 at 4:10pm
Well I just picked up the Canon Rebel T3. Switching from my DSI II color to DSLR. Will have to get familiar with the camera before I try to use the camera for astro work. But I look forward to being able to post some picture to share with you. This camera has a sensor that is very close to the Rebel 450, so I am looking forward to seeing what it can do.
Comment by George Novtekov on March 18, 2011 at 3:21pm
Dew is easy as I cool only the ccd and I close the air chamber with Astronomik clear glass clip system for EOS.
Comment by George Novtekov on March 18, 2011 at 3:19pm
My setup is luquid cooled and it cost me 250 grams more but the picture that I post is second version for my friend and its way better. The new version is up to 20 degree bellow ambient but consule low power (36W) and it is only 200grams more including controller for the peltier element. I used heat pipe aluminium cooler as it only 136 grams or something like that. Also the mode include 1mm thick cooper plate and 30x30mm peltier element. Controller is pulse wight modulator for best power consumption (same principal like Kendrik heater controller).
Comment by Marc Basti on March 18, 2011 at 11:08am
George, very impressive results. How much does the finished unit weigh? Any problems with dew/frost buildup. Marc
Comment by George Novtekov on March 18, 2011 at 5:01am
The discussion should in way that CCD need to be color as it's unfair to compare matrix with bayer and BW matrix with filter. So if we count that CCD and CMOS are color as there is no BW DSLR. Than we need to cool down the matrix to the same temp (Peltier mod) and than you will see how much cheaper and how close is DSLR.


Me and my friend Ivaylo Stoyanov manage to mod 2 DSLR already and the results are awesome. My mod is we liquid cooling for the peltier element and I am able to reach 25 degree below ambient temp. His mode is litghter and he use Air cooling system. The sample dark is from his system. The mode us cheaper my mode cost me 100euro his mod is 60Euro. Also we spend a lot of money for developing the mode but the mode itself is not expensive.

Two pics for my and Ivaylo Styanovs DSLR.
Comment by Emil Kolbert on February 26, 2011 at 12:54am
Only one single error I have made, is a Canon 400D, sorry about that.
Comment by Philip A Cruden on February 25, 2011 at 5:55pm
Never mind, I got it when I opened the image
Comment by Philip A Cruden on February 25, 2011 at 5:53pm
Hi Emil, great comparison but to be clear is the one on top the canon and the one below the QHY or is it the other way around
Comment by Trevor Woodrow on February 25, 2011 at 1:55pm
Great example Emil!
Comment by Emil Kolbert on February 25, 2011 at 11:07am
I have made a comparative between QHY9M and Canon 450D in H-alpha.




The Canon image first one is 3x600 sec, the QHY 9 is 1x900 sec.
 

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