For me, both OM 50/2 and DZ 18-180 at 18mm, 77mm and 86mm. Very consistant
off of around 0.4 deg.
C.H.Ling
----- Original Message -----
From: "Ian Nichols" <ian.a.nichols@xxxxxxxxx>
>
> On 07/04/2008, swisspace <swisspace@xxxxxxxxx> wrote:
>
>> for those that have seen the problem, was it mainly at the wide end?
>> and for those who tested and found no problem did you only test at the
>> long end?
>
> I've noticed it at all focal lengths, and if anything, it's more
> noticeable at the long end (14-54). In fact, for the tests I did, I
> specifically chose the 50 f/2 macro for it's low barrel distortion to
> rule out as far as possible any lens distortion effects. I also took
> some care over making the camera point vertically down, i.e. using a
> spirit level, to avoid perspective effects. In any case, all four
> sides of the images composed with the optical viewfinder appear to be
> equally aslant, though I only took measurements for the horizontal
> line nearest the centre.
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