Quote:
Originally Posted by coldspace
Wow Dennis,
Planetary imaging is starting to look interesting for me.
Would that DMK camera of yours be able to pick up things like this or would it lack the sensitivity for such faint objects at that focal length?
Regards Matt.
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Hi Matt
There is a huge difference in imaging capabilities between the SGIB ST7 and the DMK cameras, not to mention purchase price!
My older (parallel) model SBIG ST7 has a:
- full well capacity of 50,000 electrons,
- high Quantum Efficiency
- high Dynamic Range,
- uses a 16 bit A/D converter, and
- is cooled via a Peltier Module.
I can’t find any similar info on the DMK cameras, other than they are 8 bit devices with no cooling.
So, the capability of the DMK to record the enormous brightness range of the extremely faint moons (whose brightness levels are barely above the background sky, not to mention noise) and the overwhelming glare of the planetary disc will be severely limited at the apertures I am using.
However, I have had some success using the DMK on these types of projects. The very large number of frames and the use of Aligning/Grading/Stacking and processing programs such as Registax can apply very powerful techniques to help squeeze the best quality out of the recorded data.
Cheers
Dennis