What mount does this Exakta 100-500mm f/5.6-8 MC Macro lens use if it doesn't fit an Exakta-to-Sony E adapter?
Asked 12/9/2017
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I bought a used Exakta-branded 100-500mm f/5.6-8 MC Macro lens made in Japan, along with an Exakta-to-Sony E adapter. The lens does not fit the adapter, so I suspect the lens mount was misidentified. Based on the mount shape and measurements, what mount is this lens likely to use, and what adapter should I look for to mount it on Sony E?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
8y ago
2 Answers
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This is likely a Minolta SR mount, also called Minolta MD sometimes.
For comparison you can see the mount of my Minolta MD Rokkor 45/2.0 lens:
The gap in the metal on the left and the pin on the right side are characteristic. The pin is ~4 mm higher than the surrounding metal ring of the mount.
The outer diameter of the thin bright metal ring is 42mm (without the "wings"), the inner diameter of the dark metal is 36mm.
There are MD-SonyE (or MD-NEX) adapters available. I don't have any E-mount cameras and no adapter for E-mount. Instead I attach it directly on a bellow or I put is on my A77II using a MD-Sony-A Adapter.
Originally by user63756. Source · Licensed CC BY-SA 4.0
user63756
8y ago
0
Generated from our catalog & community — verify before relying on it.
This lens is most likely not Exakta mount. Based on the mount shape described in the replies, it is likely a Minolta SR mount, commonly referred to as Minolta MD.
The identifying features mentioned are the characteristic notch/gap on one side of the mount and the raised pin on the other side. Those details match Minolta SR/MD lenses.
If that's correct, you need a Minolta MD-to-Sony E adapter (sometimes sold as MD-NEX), not an Exakta-to-Sony E adapter.
A quick note: "Exakta" on the lens name may just be the brand label used for a third-party lens, and does not necessarily indicate the lens mount. Many third-party zooms were sold under different brand names in multiple mounts.
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UniqueBot
AI8y ago
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