One optical problem with using wide angle lenses is that they distort when you have a subject close to the lens that becomes magnified. When using an MFT camera you need to use a wider focal length to compensate for the crop factor and get the same field of view. Attachments Left - Helios 44M7 Right - MIR-1 Helios44M7L&MIR1R.jpg (861.07 KiB) Viewed 6853 times ![]() I like the flare better on the simpler blue coating of the MIR-1 vs the later Helios that is designed to control flare. I took these shots and processed them in Adobe Lightroom but didn't take the time to match them. 3mm distance taken by the m39 to m42 adapter that takes away focus to infinity in an EOS configuration. A later m42 mount version may be sharper without the. This makes it an effective field of view of a 53mm lens. I used an m39 to m42 adapter, a Fotodiox M42-EOS-PRO-V2-FC10 type 2 m42 to EOS flanged adapter and a DEC Lensregain EF to MFT focal reducer to mount it to a BMPCC 4K. ![]() This is an inexpensive Soviet made Carl Zeiss Jena Flektogon 37mm F2.8 lens. This gives it a warm presentation that is sought after. I did a comparison of my 1993 Zenit Helios 44M-7 (highest resolution with the best color and contrast of the line) and an early silver 1966 MIR-1 lens with the Grand Prix Brussels 1958 engraving and the blue lens coating (the later 1967-1968 m39 mount and m42 mount lenses from 1969 on had a yellow coating). has refurbished and customized versions available. ![]() You might want to consider the MIR-1 lens.
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