Why are there no Teleconverters available for m/43 cameras.

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Paul-H

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Hi all

Just wondering

Why are there no Teleconverters available for m/43 cameras.

Obviously the loss of light may effect autofocus performance, but the same applies to any teleconverter regardless of the system and that never stopped anyone else did it.

They make extension tubes with autofocus contacts, they make speed boosters with autofocus contacts so why no Teleconverters which are the same as speed booster just with a different lens set in them

Am I missing something obvious here

Paul
 
There is a soon-to-be-released Olympus 1.4 TC - however this appears to only work with the new 40-150 f2.8 and the 300 f4 mentioned by manualfocus-g .
I don't know the technical reasons why this will only work with these 2 lenses but believe it is something to do with an element protruding into the lens.
 
It's easy to make a comparison with APS-C or FF when wondering about the lack of tele-converters for 4/3 but some of the benefits of a TC will be lost on 4/3 due to diffraction. Logic would put TC's on longer lenses with smaller native apertures and then lose a stop or two....f/4 or f/5.6 down to f/8 or f/11 and well into the diffraction limit which can be in addition to the normal TC softening. Perhaps the imminent f/2.8 lenses will help mitigate some of the problems.

Bob
 
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