SunBlack

I have a Canon 5D mkIII. I have a Nikon 300/2.8 AFS II and a Nikon 180/2.8 . Use: astronomy. I use the 180mm medium star fields, and the 300m for tiny galaxies too (where it is very important to...

I have a Canon 5D mkIII. I have a Nikon 300/2.8 AFS II and a Nikon 180/2.8 . Use: astronomy. I use the 180mm medium star fields, and the 300m for tiny galaxies too (where it is very important to...

Uhm...i use the nikon coupled to a canon body, i think the software wont recognize the combination so no correction could be applied.

I am the owner of Nikon 300/2.8 AFS II that I use for astronomy on Canon 5D mkIII via adapter.Do I have the possibility to take and test a Canon 300/2.8 IS mk I at a great price.Why I'm thinking...

I am the owner of Nikon 300/2.8 AFS II that I use for astronomy on Canon 5D mkIII via adapter.Do I have the possibility to take and test a Canon 300/2.8 IS mk I at a great price.Why I'm thinking...

After the encouraging citizens tests http://forums.dpreview.com/forums/read.asp?forum=1032&message=42242055 this is the first light on a dark sky .5D mkIII mod + Nikon 300/2.8 @ f / 4, 16x3m,...

Hey guys.....i did not do darks because they were TEST shots!!! to see Ha response only.....I know what are darks and their importance!

Not myself, hutech company made it for me.

1) http://www.unihedron.com/projects/darksky/ 2) http://www.sciencecenter.net/hutech/canon/

Canon 5D mkIII astro mod + Nikon 300/2.8 @ f/5.6 5x1m 6400iso + UHCS filter, no darks, sqm 18, camera temp. 32° . Canon 5D mkIII astro mod + Nikon 300/2.8 @ f/4 10x2m 1600iso + UHCS filter, no...