On 7/29/2015 1:58 PM, Chris Trask wrote:
I'm considering buying an OM to micro 4/3 adapter. There are numerous ones
in prices from $40 to $150. Can anyone compare/contrast the fotoDiox,
Metabones (not speed booster) and the Olympus factory versions?
There are a number of offerings on evilBay:
http://www.ebay.com/itm/Fotodiox-Pro-Lens-Mount-Adapter-35mm-Olympus-OM-Zuiko-Lenses-to-Micro-4-3-/151755458419?hash=item2355548773
http://www.ebay.com/itm/FOTGA-Olympus-OM-Lens-to-Micro-4-3-M4-3-Adapter-f-G2-G3-GF2-GF3-GH1-GX1-EP1-EPM2-/191642444110?hash=item2c9ec7a14e
http://www.ebay.com/itm/Olympus-OM-lens-to-Micro-4-3-M4-3-Adapter-for-E-P5-E-PL5-E-PL6-GF6-GF2-G2-GH1-G5-/281754984951?pt=LH_DefaultDomain_0&hash=item4199e7e1f7
However, I have been buying all of my adapters from Roxsen, all of which have
been of good quality and which fit snugly. Here's what they have for an OM to
u4/3 adapter:
http://www.ebay.com/itm/Roxsen-Olympus-OM-lens-to-Micro-4-3-mount-adapter-Olympus-E-PL7-P5-Panasonic-GX7-/400107533786?pt=LH_DefaultDomain_0&hash=item5d284475da
These are all essentially the same. The body and male mount are one piece of aluminum. The female mount is aluminum with
"springs" made by cutting a thin kerf in the aluminum and widening it. I have the same kind in EF to µ4/3. It works
fine, for the kind of casual use of odd lens/body combos and testing I got it for. I imagine in regular use, the
aluminum "springs" would start to weaken and the male mount to wear and loosen, especially with heavy lenses. I've gone
in and re-tensioned similar "springs" with a small screwdriver, for short term relief.
The first one doesn't appear to be a Fotodiox Pro, not so labeled and of the same type as the rest. The Oly adapter is
in a whole other league of build quality.
According to their site, Fotodiox doesn't sell a plain adapter for OM=>µ4/3, only " ...Adapter with Focal Reducing Light
Gathering Optics." Interestingly, it too relies on a one piece body and rear/male mount, although the female end does
have separate springs.
Critical Application Moose
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