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Go Back   Olympus UK E-System User Group > Cameras, lenses and system accessories > Lens focus > Converters, adapters and extension tubes

Converters, adapters and extension tubes All those lens accessories that get in between the lens and the camera.

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Old 9th February 2015
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Mdb2 Mdb2 is offline
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New convert

Hi all, which would be the best converter for my present ( not sold yet) canon EF lenses. Attached to my EM1. I presently have the 100f 2-8is 300f4is and sigma 150-500f5-6--6-3 and sigma 500f4-5 prime. Still have not got the nerve to sell any of these. But I am impressed with the new 40-1502.8 and like others awaiting the 300f.4. Especially if we can use the converter from the 40-1502.8
Kind regards mike
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Old 9th February 2015
linus1884 linus1884 is offline
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Re: New convert

Hi Mike

Have you checked out metabones http://www.metabones.com/products/de...B_SPEF-m43-BM2

i dont own any Canon EF lens but i was looking at convertors for various setups and came across the metabones one.

it isnt cheap unfortunatly
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Old 9th February 2015
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Re: New convert

Thanks Linus, I see they will be at the show in march will look them up
Kind regards mike
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Old 9th February 2015
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Re: New convert

Quote:
Originally Posted by Mdb2 View Post
Hi all, which would be the best converter for my present ( not sold yet) canon EF lenses. Attached to my EM1. I presently have the 100f 2-8is 300f4is and sigma 150-500f5-6--6-3 and sigma 500f4-5 prime. Still have not got the nerve to sell any of these. But I am impressed with the new 40-1502.8 and like others awaiting the 300f.4. Especially if we can use the converter from the 40-1502.8
Kind regards mike
Hi Mdb2.

The terminology used in your post is a little confusing. In your first sentence you ask about a "converter" for your EF lenses to be used on your E-M1 but I think you mean an adapter. An adapter is basically a spacer with no optical elements and simply makes up for the smaller flange/sensor distance of m4/3 compared to a DSLR. Of course it also has to accomodate the different Canon/m4/3 flange designs. I believe the Canon lenses will only work in manual focus mode as there is no compatibility between the auto focus systems of the two systems. Member David Morison is the man to advise you on these adapters as he uses some Canon lenses with the E-M1.

The Metabones device referred to by Linus 1884 is a "speed converter" ( although it also has to function as an adapter) and gives the effect of one extra stop aperture. However it achieves this by using optical elements which reduce the focal length (increase the field of view) of the lens.

The converter for the 40-150 f2.8 is a 1.4 X teleconverter with optical elements to increas the focal length at the expense of a loss of 1 stop.This will only work with that lens and the forthcoming 300 f4. This is becausee these lenses have their rear elements recessed in the lens body and the teleconverter has a front element which protudes into the lens body when mounted.

Hope this helps.

Regards.
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