On Wed, Aug 24, 2005 at 01:22:21PM +0100, Steve Jolly wrote:
> Vid Strpic wrote:
> >Correction.  With rear filter mounted, it DOES interfere with the mirror
> >;)
> >Without the filter the situation is normal, and it seems that unlike
> >Zenitar, this lens does not NEED to have filter mounted to focus
> >properly.  But, we'll see when I develop this roll ;)
> If you examine the filters carefully, you can see that they're slightly 
> concave lenses rather than plain glass.  (This is most obvious if you 
> look at the reflection of a light source in them - you can see two 
> images, one bigger than the other).  I found the lens very soft (on 
> film, at least), and have been wondering whether the filters are in fact 
> an important part of the lens's optics.

Hmm... just looked very carefully, and I don't see any concaveness, just
plain glass.  Are we talking about the same lens?  MIR-47 is this one
I'm talking about.  Or maybe different batches have different optical
designs?

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