Celestron C5: F-stop vs. T-stopPosted By Tyler Allred |
Alan,
I think I can perhaps answer your question best with two photos, taken 13 minutes apart, of the same subject, under very similar light conditions. These photos have been resized only.
First - with the AF Nikkor 70-300mm 1:4-5.6 D ED...
Second - with the Nikon at prime focus of the C5, with the f/6.3 reducer corrector.
This is with the 70-300, at 300mm f/5.6 1/1600....
I think I can perhaps answer your question best with two photos, taken 13 minutes apart, of the same subject, under very similar light conditions. These photos have been resized only.
First - with the AF Nikkor 70-300mm 1:4-5.6 D ED...
Second - with the Nikon at prime focus of the C5, with the f/6.3 reducer corrector.
This is with the 70-300, at 300mm f/5.6 1/1600....
