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I am considering an 85mm f/1.8 so thought I would try my 50mm f/1.4 with my Kenko 1.4x teleconverter for a bit as this should give a similar-ish 70mm at f/2. I ought to point out that I am shooting on a 7D which has a crop sensor of course. As part of this I compared this set up with my 70-200mm at 70mm by taking the same shot (tripod mounted etc) at f/4 and f/5.6. The 50mm X 1.4 compared favourably I thought but the weird thing is the field of view is different, yet both should be at 70mm from exactly the same place:
70mm teleconv test 009mid by jimi-the-fish, on Flickr
70-200mm at f/5.6
70mm teleconv test 010mid by jimi-the-fish, on Flickr
50mm x1.4 at f/5.6
Can anyone explain?
cheers
J
(for those few who might be interested this is how the 50mm x 1.4 combo performs wide open i.e. f/2 - slightly soft still:
70mm teleconv test 012mid by jimi-the-fish, on Flickr)
70mm teleconv test 009mid by jimi-the-fish, on Flickr
70-200mm at f/5.6
70mm teleconv test 010mid by jimi-the-fish, on Flickr
50mm x1.4 at f/5.6
Can anyone explain?
cheers
J
(for those few who might be interested this is how the 50mm x 1.4 combo performs wide open i.e. f/2 - slightly soft still:
70mm teleconv test 012mid by jimi-the-fish, on Flickr)