difference between m39 and m42 ?

Started Apr 3, 2014 | Questions thread
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dali777
dali777 Junior Member • Posts: 29
difference between m39 and m42 ?

whats the difference?

which one is for pentax?

on this suntar 28mm 1:2.8 lens it says on the skrew thread vs-pe

?

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Think about the photo before and after, never during. The secret is to take your time. You mustn't go too fast. The subject must forget about you. Then, however, you must be very quick. Henri Cartier-Bresson

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