Raymo,
Totally agree, each camera has its own parameters, efficiencies, deficiencies and performance levels at various exposure lengths, environmental conditions and so on....
I just used the term “general consensus” as a majority of literature you read on Astro forums , websites, technical journals and the like, mentions about Canon cameras and that “magical” ISO800 !
This is the case for my 600D and few others in regard to long exposure AP
Cheers
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