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Forum: Photographic Technique
09-13-2010, 02:02 PM
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Thanks! I appreciate your comments. They have been helpful.
I have read that CMOS sensors are not good for long exposures because of noise in long exposures. NR is not a solution because it can eliminate small/faint stars. How much of a problem is this.
How does DFS in long exposures impact the possibilities with astrophotography?
Thanks!
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Forum: Photographic Technique
09-10-2010, 11:19 AM
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Hi. I will probably be upgrading my K110D to the new K-5 when it comes out. I am thinking of doing some basic astrophotography and I'd like to know what I'm up against with Pentax and the CMOS sensors. I don't have a telescope, but I would like to do some star trail shots or some long exposures on an EQ mount. What are the limitations?
I have done some shots of the moon at 1200mm (300mm f/2.8 with two stacked 2x TC's) and they turned out real nice!
What are the limitation of doing what I have described above, and what are the limitations with more advanced astro (with a telescope)? I just want to know what I'm up against.
Thanks!
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