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Old 3rd March 2008
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Re: EC-14 for Walkabout

Quote:
Originally Posted by photo_owl View Post
you will get a max aperture of 4.9 with the ec14 and the 2.8/3.5 lenses

personally I feel I can almost ignore the ec14 when it's in use where I have to think about the ec20 even wide open!

the 510 (and 3) seem more than happy to focus the 3.5s with the ec20 and the 5.6s with the ec14

Ian raises a good point about diffraction - but I would hate to think it was significant below an effective f11 in any circumstances
Just to clarify, if you have a lens with max aperture f/2.8-f/3.5 (through the zoom range) with the EC-14 fitted the max aperture range is shifted to f/4-f/4.9.

I concur that I have relatively few problems focusing with the EC-14 using a f/5.6 (actual f/8) lens, like the 40-150 mk2, when using the EC-14. Not yet tried the EC-20.

Ian
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