Yep. Manual focus problems have to be mirror box problems. Or  
operator error. And if you have both autofocus and manual focus  
problems, they're unrelated. Of course any tests have to be done off  
a tripod, particularly at wide aps.
Paul
On May 7, 2008, at 2:47 PM, David J Brooks wrote:
> Just had a quick look at the focus chart and some other items i shot
> Tuesday. I think i should get in a bit closer, but,
> there is definate concerns with the DA 50 F2.8 both in AF and MF
> modes. Around 30mm at F2.8.
>
> Tried the A50 F1.7 as well and it shows problems to. However i'm going
> to have to redo them, as the focus is all over the place at various
> Ap's.Some front, some back.
>
> Tried wide open up to F8, on both lenses.
>
> Did some one say, that if i was having focus issues using MF, it would
> be more of a mirrior or focus screen issue.
>
> Or my issue.:-)
>
> Dave
>
> -- 
> Equine Photography
> www.caughtinmotion.com
> http://brooksinthecountry.blogspot.com/
> Ontario Canada
>
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