Metabones Leica R to M 4/3

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Francis E
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Metabones Leica R to M 4/3
8 months ago

Can anyone kindly tell me what modifications are needed to a Summicron 50/2 when using this adapter, and what the restrictions on metering are?

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Tom Caldwell
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Re: Metabones Leica R to M 4/3
In reply to Francis E, 8 months ago

Francis E wrote:

Can anyone kindly tell me what modifications are needed to a Summicron 50/2 when using this adapter, and what the restrictions on metering are?

Is this an R mount lens? (pardon my ignorance).

My general experience with focal reducers is that the camera meters whatever light comes through the lens and therefore any adjustments are automatic.

Apart form the Sony E mount focal reducers for Canon EF lenses which "talk" to the camera and can control the lens from the camera all other focal reducers are completely dumb.  Brian C foreshadowed an EF mount focal reducer for the M4/3 mount.  If successful this will allow EF mount lenses to report to the camera and can in turn be controlled by the camera.

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bigley Ling
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Re: Metabones Leica R to M 4/3
In reply to Francis E, 8 months ago

There is a metal flange that sticks out of some lens that is used to protect the protruding rear element. The modification is usually non reversible, and requires physical filing off this metal flange so it does not interfere or collide with the speed booster.

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bigley Ling
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Re: Metabones Leica R to M 4/3
In reply to Tom Caldwell, 8 months ago

Tom Caldwell wrote:

Is this an R mount lens? (pardon my ignorance).

My general experience with focal reducers is that the camera meters whatever light comes through the lens and therefore any adjustments are automatic.

Apart form the Sony E mount focal reducers for Canon EF lenses which "talk" to the camera and can control the lens from the camera all other focal reducers are completely dumb. Brian C foreshadowed an EF mount focal reducer for the M4/3 mount. If successful this will allow EF mount lenses to report to the camera and can in turn be controlled by the camera.

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Tom Caldwell

Yes, the EF to NEX Metabones adapters have excellent communication between  Canon EF and E-mount, so much so even auto ISO works to provide higher shutter speeds with larger focal lengths and lower shutter speeds for wider focal lengths. This is ideal when using a Canon Zoom lens.

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Francis E
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Re: Metabones Leica R to M 4/3
In reply to bigley Ling, 8 months ago

bigley Ling wrote:

There is a metal flange that sticks out of some lens that is used to protect the protruding rear element. The modification is usually non reversible, and requires physical filing off this metal flange so it does not interfere or collide with the speed booster.

Yes, I think that's it. I'm currently using a Novoflex Leica R to M 4/3 which doesn't have this problem. It's on an OMD EM5. The Leica R lenses are all MF, but I have all other functions including metering.

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Francis E
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Re: Metabones Leica R to M 4/3
In reply to Tom Caldwell, 8 months ago

Yes, Summicron 50/2 is a Leica R lens.

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Drplusplus
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Re: Metabones Leica R to M 4/3
In reply to Francis E, 8 months ago

Francis E wrote:

Can anyone kindly tell me what modifications are needed to a Summicron 50/2 when using this adapter, and what the restrictions on metering are?

I have a Wetzlar Summicron-R that had previously been used on an R3.  It did not need any modifications for use with a Metabones on an E-PL1.  Focusing is manual and so is setting the aperture.

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Drplusplus
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Re: Metabones Leica R to M 4/3
In reply to Drplusplus, 8 months ago

Drplusplus wrote:

Francis E wrote:

Can anyone kindly tell me what modifications are needed to a Summicron 50/2 when using this adapter, and what the restrictions on metering are?

I have a Wetzlar Summicron-R that had previously been used on an R3. It did not need any modifications for use with a Metabones on an E-PL1. Focusing is manual and so is setting the aperture.

Strike that--I think you are talking about the SpeedBooster and not the adapter.

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Francis E
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Re: Metabones Leica R to M 4/3
In reply to Drplusplus, 8 months ago

Strike that--I think you are talking about the SpeedBooster and not the adapter.

Yes, that's correct. I'm certainly not qualified or willing to make modifications to my Summicron R 50/2, so I'll stick with my existing Novoflex.

I have a number of other Leitz lenses with longer focal lengths which really don't work with such a big crop, so eventually I made need to get one of the Sony Alpha FF.

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Tom Caldwell
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Re: Metabones Leica R to M 4/3
In reply to Francis E, 8 months ago

Francis E wrote:

Strike that--I think you are talking about the SpeedBooster and not the adapter.

Yes, that's correct. I'm certainly not qualified or willing to make modifications to my Summicron R 50/2, so I'll stick with my existing Novoflex.

I have a number of other Leitz lenses with longer focal lengths which really don't work with such a big crop, so eventually I made need to get one of the Sony Alpha FF.

Why don't you ask Metabones, the word form the horse's mouth has to be more reliable than the cowboys that ride it.  Let alone someone who only has a pony and thinks that the pony knows what the horse thinks by analogy.

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Francis E
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Re: Metabones Leica R to M 4/3
In reply to Tom Caldwell, 8 months ago

Why don't you ask Metabones

The Leitz Summicron 50/2 is listed on their website as a lens needing modification. Protruding rear element is a problem that can only be fixed by filing down, something I'm not willing to do.

Regards

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Tom Caldwell
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Re: Metabones Leica R to M 4/3
In reply to Francis E, 8 months ago

Francis E wrote:

Why don't you ask Metabones

The Leitz Summicron 50/2 is listed on their website as a lens needing modification. Protruding rear element is a problem that can only be fixed by filing down, something I'm not willing to do.

Regards

I don't blame you Francis I would not do it either.

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Francis E
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Re: Metabones Leica R to M 4/3
In reply to Tom Caldwell, 8 months ago

Tom Caldwell wrote:

I don't blame you Francis I would not do it either

No, not an option. I'll see if I can save up for a Sony A7.

Regards

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Tom Caldwell
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Re: Metabones Leica R to M 4/3
In reply to Francis E, 8 months ago

Francis E wrote:

Tom Caldwell wrote:

I don't blame you Francis I would not do it either

No, not an option. I'll see if I can save up for a Sony A7.

Regards

Tried my son's A7R, takes great images but I had reservations about its user interface.

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Francis E
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Re: Metabones Leica R to M 4/3
In reply to Tom Caldwell, 8 months ago

Tom Caldwell wrote:

Tried my son's A7R, takes great images but I had reservations about its user interface.

I tried one in the Sony Centre here with a Zeiss 35/1.8. I got some nice images, but they were quoting $A 2,499 body only and the Zeiss glass was $A 999. That's really quite expensive. The Sony Centre didn't have any other lens for it, the A7 kit lens not being available separately.

I also worry about how the Leitz R lenses will work with an adapter. It would be quite easy to make an expensive mistake.

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Lumixdude
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Re: Metabones Leica R to M 4/3
In reply to Francis E, 8 months ago

Focal length reducers on µ4/3 cameras only work in aperture priority mode, or on full manual... You cannot use any of the automatic adjustments with your camera lens apart from light metering.

You can use aperture priority mode so you don't have to do a focus and aperture dance and instead just open the aperture blades to where you want them, but you still have to adjust everything else manually.

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Francis E
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Re: Metabones Leica R to M 4/3
In reply to Lumixdude, 8 months ago

Lumixdude wrote:

Focal length reducers on ยต4/3 cameras only work in aperture priority mode, or on full manual... You cannot use any of the automatic adjustments with your camera lens apart from light metering.

Yes, understood. I do get good results using Leitz Summicron R 50/2 on OMD EM 5 with a Novoflex adapter.

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Lumixdude
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Re: Metabones Leica R to M 4/3
In reply to Francis E, 8 months ago

I also get good results with my FD 135mm F/3.5 which is effectively a 270mm daylight only prime now... It has nasty CA up until about around F/8 and slightly higher where it becomes full sharp, but it's a great lens for the purpose when I need to get close to something I can't otherwise with my feet and its quality really stands out once you get there.

You just have to know your limitations when you're playing with old manual focus glass.

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Francis E
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Re: Metabones Leica R to M 4/3
In reply to Lumixdude, 8 months ago

Lumixdude wrote:

You just have to know your limitations when you're playing with old manual focus glass.

Yes, I agree entirely. On getting close, though, you could probably achieve the same results using a modern lens like the Zuiko 75/1.8 and cropping. But the thing I really like about Leitz R glass is the way it renders colour.

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