Adapting old lenses to µ4/3: Worth it?

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Smaug01 Senior Member • Posts: 2,441
Adapting old lenses to µ4/3: Worth it?

I have some old OM system lenses: 28/3.5, 135/3.5, 75-150/3.8 and a 50/1.8.

Most of them are covered by native digital lenses I already have for my M10.3. I assume the digital ones will be better in every way, except maybe a bit of speed.

Would it even be worth the $17 adapter price to use these old optics again?

For example:

  • I have the µ4/3 Olympus 70-150/4-5.6 incoming. I would gain just over a stop of light at 150 mm with the OM lens. Since I wouldn't be using the whole lens, but just the sharp part at the center, would I gain some advantage in terms of sharpness and lack of vignetting? (I feel like not)
  • The 28/3.5 would be a long normal; kind of useless.
  • The 135/3.5 would be a prime telephoto. Could the IQ rival that of the aforementioned zoom I have incoming? Is that extra 1.2 stop of speed worth anything, considering I'd have to focus manually?
  • The 50/1.8 was such a humble and rarely used lens on my OM1N. I only used it for the odd available light stuff. Might it become a cracking portrait lens on my M10.3?
  • Any other OM system lenses that might be worth picking up cheap/used on ebay for the express purpose of using with this adapter? Maybe some kind of birding lens, like a slow 300 mm?

When I had my Pentax Q camera, I had a similar adapter and I adapted a screw mount telephoto cinema lens. Contrast was not good, but sharpness was astoundingly good, for a 60+year old lens. It was only a question of being able to find and manually focus on the subject before it moved. Also, it looked ridiculous, which I kind of like sometimes. That lens was about 2" diameter and 8" long. ^_^

I'm wondering how it plays out with µ4/3. If you bought one, do you still use it from time to time, or has it just turned into an impractical curio?

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"Rudeness is the weak person's imitation of strength."

 Smaug01's gear list:Smaug01's gear list
Pentax MX-1 Panasonic FZ1000 Panasonic Lumix DMC-TS30 Olympus OM-D E-M10 III Olympus M.Zuiko Digital ED 40-150mm F4-5.6 R +11 more
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