No one maintains that Nikons that old didn't have some issues. The D300 you're referencing is nine years old, I'd say irrelevant. That was what I was trying to determine with my post. I do not know at what point they stopped, or if they did stop. I know that previous Nikons had this problem, that's what the Nikon firmware hack fixed. Maybe Nikon stopped doing this although I think even the D810a is still slightly clipped. Here is a link to Martinec's article that talks about the problems of the black point being clipped: Martinec says "The nonlinear distortion of deep shadows in D300 raw data by clipping means that it will be a poor choice for astrophotography, or any application where pulling weak signals out of the noise at very low illumination levels is of importance." Maybe I am completely misinterpreting what they are saying. I may not be able to post here anymore, but I guess until I am specifically banned, I will try to answer your question.Įxtremely knowledgeable astrophotographers like Wei-Hao Wang and Emil Martinec say that black point clipping is a problem. First, I will admit that this heavy technical stuff is a little over my head.
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