Thread: Canon 400mm F2.8 L FD (non-IS, manual)
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Old 23-09-2015, 08:12 AM
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bojan
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For comparison, below are crops from 100% sized stacks (16x) taken with f/2.8, f/3.5, f/4

Drastic difference between f2.8 and 3.5.
F/3.5 was taken with 50% increase (7sec) in exposure time.
F/4 was taken with 10sec exposure time.
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Click for full-size image (Jewell_2.8_c.jpg)
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Click for full-size image (Jewell_3.5.JPG)
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Click for full-size image (Jewell_f4_c_m.jpg)
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