To me the EG-S makes a big difference, I can't get reliable focus even with
the 90/2 on the standard screen, there was always a small shift. With the
EG-S I can make 100% accurate focus with any OM lenses I tried. It doesn't
mean the focus is easy but just much more accurate when I can focus slowly,
the problem is the viewfinder darken a lot when EG-S is used.
C.H.Ling
----- Original Message -----
From: "Chuck Norcutt"
> Canon has a separate screen for manual focus of lenses of f/2.8 or
> faster. But I have to admit that I can't tell much difference. It
> doesn't make my eyes work any better. I find the gridded screen much
> more generally useful.
>
> Chuck Norcutt
>
> Bob Whitmire wrote:
>> On May 1, 2009, at 9:03 AM, usher99@xxxxxxx wrote:
>>
>>> like with DSLR's all would appears fine in the VF,
>>> but the nasty surprise would be on the print/slide. The Screens for
>>> the DSLR's are purposely made for slower lenses and AF so faster MF
>>> lenses can be tricky to use w/o live view focus.
>>
>> Hummm . . . I've got a f/2.8 manual-focus lens strapped on the front
>> of my D3 at the moment. The focus screen is Nykon's standard ground
>> glass, made mostly for autofocus. But I haven't had any trouble to
>> this point. The ground glass pops at focus, and because the lens is
>> "registered" with the camera, the focus sensor still works so when
>> focus is achieved, I get the round dot in the viewfinder. True, when I
>> get down to some serious critical work, I'll use live view magnified
>> for focus just the way I want it, but for the moment I'm still playing
>> with the lens and the shots I've taken have been limited by my
>> abilities, not the equipment. (Full disclosure also requires me to
>> confess the lens is 21mm, which means the depth of field is extremely
>> forgiving of my errors, even on full frame.)
>>
>> --Bob Whitmire
>> www.bwp33.com
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