<p>thank you everybody for these valuable responses<br>
as i understand, i landed myself accidentally with a manual aperture lens<br>
i wonder if...
What is the rule with manual selection of aperture then?<br>
Is it just according to the available light or...<br>
how do the...
<p>Does anybody know the difference between Helios 44-4 and Helios 44-2 lenses?<br>
Ive just bought a Zenit 11 at a flea market but changed the...
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