edwardkaraa wrote:
So, I know it must have been discussed before, but what is the best M/E adapter mechanically? I would imagine something like the Novoflex or Voigtlander?
The first thing I look for is the M bayonet retaining mechanism. Most lesser models have super thin slits that are widened to provide pressure on the lens bayonet ears. They require one to frequently use a screwdriver to widen the slit to increase the tension.
The Metabones and I believe the 2 mentioned above, have a arc shaped steel \"ear\" or retaining lever to provide the tension. This arrangement seems to be more robust and not require any adjustments.
The last time I looked at the Voigtlander, I thought it appeared larger in diameter than the Metabones, which would give less room for middle finger on the NEX 6/7. The Metabones has a rather large lens release tab, which I have ground down to a very shallow tab. The a7r may have more room between the lens mount and grip, so this may not be a factor.
Lastly, the Metabones was about .015\" too thin and a properly adjusted M lens would focus past infinity. The 3 adapters mentioned have screws on the mount face that can be removed to shim the adapter to give exact infinity hard stop focus. I don\'t have any of the Novo or Voig adapters yet, so I don\'t know how they are as far as infinity.
edwardkaraa wrote:
So, I know it must have been discussed before, but what is the best M/E adapter mechanically? I would imagine something like the Novoflex or Voigtlander?
The first thing I look for is the M bayonet retaining mechanism. Most lesser models have super thin slits that are widened to provide pressure on the lens bayonet ears. They require one to frequently use a screwdriver to widen the slit to increase the tension.
The Metabones and I believe the 2 mentioned above, have a arc shaped steel \"ear\" or retaining lever to provide the tension. This arrangement seems to be more robust and not require any adjustments.
The last time I looked at the Voigtlander, I thought it appeared larger in diameter than the Metabones, which would give less room for middle finger on the NEX 6/7. The Metabones has a rather large lens release tab, which I have ground down to a very shallow tab. The a7r may have more room between the lens mount and grip, so this may not be a factor.
Lastly, the Metabones was about .015\" too thin and a properly adjusted M lens would focus past infinity. The 3 adapters mentioned have screws on the mount face that can be removed to shim the adapter to give exact infinity hard stop focus. I don\'t have any of the Novo or Voig adapters yet, so I don\'t know how they are as far as infinity.
edwardkaraa wrote:
So, I know it must have been discussed before, but what is the best M/E adapter mechanically? I would imagine something like the Novoflex or Voigtlander?
The first thing I look for is the M bayonet retaining mechanism. Most lesser models have super thin slits that are widened to provide pressure on the lens bayonet ears. They require one to frequently use a screwdriver to widen the slit to increase the tension.
The Metabones and I believe the 2 mentioned above, have a arc shaped steel \"ear\" or retaining lever to provide the tension. This arrangement seems to be more robust and not require any adjustments.
The last time I looked at the Voigtlander, I thought it appeared larger in diameter than the Metabones, which would give less room for middle finger on the NEX 6/7. The Metabones has a rather large lens release tab, which I have ground down to a very shallow tab. The a7r may have more room between the lens mount and grip, so this may not be a factor.
Lastly, the Metabones was about .004\" too thin and a properly adjusted M lens would focus past infinity. The 3 adapters mentioned have screws on the mount face that can be removed to shim the adapter to give exact infinity hard stop focus. I don\'t have any of the Novo or Voig adapters yet, so I don\'t know how they are as far as infinity.
Nov 02, 2013 at 10:02 AM
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