This is said to be the ideal 'Portrait' lens, being 135mm. It does take a decent photo. Full manual focus. I use an 'EOS to M42' adapter for all the M42 lenses, on Canon 550D and 5D Mark II DSLR's.
HOYA 135mm F/2.8 HMC TELE-AUTO Manual Focus Portrait Lens For Olympus OM-System
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