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Standard zoom and mid range Lenses with focal lengths larger than 12mm, but no longer than 60mm, includes standard zooms and portrait primes plus some macro lenses.

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Old 11th November 2016
Harold Gough Harold Gough is offline
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First Try Out: Olympus Digital 50mm f2 macro ED 4/3 Lens on Full Frame

I made an enquiry on another Olympus blog as to whether anyone knew the size of the image circle of the lens. They did not and neither did Olympus UK.

My aim was to look at possibilities of using it on my full frame Sony A7R, getting the high resolution of the lens together with that of the sensor. I (mis)use all kinds of lenses for macro. I wanted to see if the lens would give full, or at least useful coverage of the sensor.

An issue here is one of how much glassware I can carry and the possibility of some rationalisation.

There were no full-function adapters freely available online so I purchased a manual one. By prefocusing the lens on the EM-1 and transferring it to the A7R, that was sorted. I was stuck with the lens on full aperture but, for macro, I could deal with that with tubes and/or TC.

The images (uncropped) here are from just a "quick & dirty" quickie test within half an hour of receiving the adapter. Shots were hand-held by sunlight, through a window for the macro. What it shows is slight vignetting at distance but none at macro focus (ca 90mm & ca 42mm FOV). The darkish corner in the second image is not vignetting.

Harold





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Old 11th November 2016
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Re: First Try Out: Olympus Digital 50mm f2 macro ED 4/3 Lens on Full Frame

Interesting - are these un-cropped?

Ian
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Old 11th November 2016
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Re: First Try Out: Olympus Digital 50mm f2 macro ED 4/3 Lens on Full Frame

Obviously the lens cannot cover the FF sensor efficiently but it is sharp enough to be useful for Portraits.

Since you cannot close the Aperture I don't know how useful it can be for Macro....
The DoF is really shallow....
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Old 11th November 2016
Harold Gough Harold Gough is offline
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Re: First Try Out: Olympus Digital 50mm f2 macro ED 4/3 Lens on Full Frame

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Originally Posted by Ian View Post
Interesting - are these un-cropped?

Ian
Yes. Thanks for the nudge. That should have been in there, now added. The exercise was purely one about vignetting, with the subject in (limited) focus.

Harold
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Old 11th November 2016
Harold Gough Harold Gough is offline
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Re: First Try Out: Olympus Digital 50mm f2 macro ED 4/3 Lens on Full Frame

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Originally Posted by zuiko-holic View Post
Obviously the lens cannot cover the FF sensor efficiently but it is sharp enough to be useful for Portraits.

Since you cannot close the Aperture I don't know how useful it can be for Macro....
The DoF is really shallow....
Changing the magnification via extension rings should get me to f8 (effective) with no problem. I can stack then, as I have no aperture control to lose. Subject to the working distance being acceptable, it doesn't matter whether closing down the diaphragm or spreading the image circle gets me there, both select the centre of the lens. That will involve flash.

Harold
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