Canon EF 200-400mm f/4L IS USM Extender 1.4x
Announced May 14, 2013 •
Telephoto zoom lens | Canon EF | 5176B002
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By: Nuno Januario (1 month ago)
Hi all, Canon Released a new firmware for 200-400 https://www.usa.canon.com/internet/portal/us/home/support/details/lenses/ef/super-telephoto/ef-200-400mm-f-4l-is-usm-extender-1-4x?tab=drivers_downloads Does anyone tried to update? Any issues? Thanks in advance. Best Regards Nuno
By: RE Alpha (May 29, 2017)
Posted to: Sony Alpha Full Frame E-mount Talk
By: Pones (Feb 1, 2017)
Hi Guys I recently purchased a 200-400 2nd hand and was toying with the idea of getting a 7D mark ii as a trial to see if I achieved better results with crop camera and no extender as opposed to full frame 1Dx with extender. Also extra reach of 1.6 would be handy. 560mm FOV. v 640mm FOV. I would struggled on low light days I am sure with regard to noise. Shooting AFL Football mainly. the 7Dii looks so bad...
One gives compositional benefits, other gives more light and superb sharpness. Deciding which one, is a tough question. Can someone please suggest ? Usage is mostly mammals, early and late evening and in very dusty conditions. Does the 200-400 zoom sucks dust? How is the in built teleconverter, useful ? Not sure if I want to use the in built one and make it a slow F5.6. Thanks. --Tiger Photography
By: mermaidkiller (Aug 16, 2015)
Using an extender (tele converter) has the advantage that the absolute aperture (in mm, not as f/ number) remains the same with the same lens which allows a relative bright f/nubmer without T/C and yet acceptable with T/C. E.g the bright 200mm f/2.8L with T/C results in a yet acceptable 400 f/5.6. A zoom alternative (100-400 f/4.5-5.6L) results in a dim f/5 at 200mm. Why not make a 200-400 f/2.8-f/5.6 which replaces a T/C and a prime lens ? There is a 200-400 lens f/4L, but that is not a...
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