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Macro+Infinity Focusing Russian 50mm f1.2 Lens for $50 DIY
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PostPosted: Wed Oct 04, 2017 6:38 pm    Post subject: Macro+Infinity Focusing Russian 50mm f1.2 Lens for $50 DIY Reply with quote

Well I ordered a Russian RO 109 50mm 1.2 projector lens and set about digging through my my bits and bobbles to figure out how to make it a fully focusing lens for my aps-c Sony a6000. It focuses to infinity and is also macro. The aperture goes from f1.2 to f1:1.2(lol) Here is a video wait for samples at the end

PostPosted: Sat Oct 07, 2017 11:20 am    Post subject: Reply with quote

50 / 1.2 on 1.5x crop sensor gives 75 / 1.8 in terms of blur quantity and angle of view. Still very usable, I have 2 of them, bought to hack somehow


PostPosted: Sun Oct 29, 2017 2:53 pm    Post subject: Reply with quote

Thanks for sharing this! Probably the cheapest way to get at f/1.2 Very Happy

1 question: When focussed at infinity, how much does the rear part of the lens-tube protrude beond the mounting flange of the adapter?