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 Post subject: Extension tubes on 4/3
PostPosted: Sun Nov 25, 2007 8:54 pm 
I have seen cheap extension tubes on ebay and other sites which claim to work with E-system cameras - however they don't have electrical contacts. This doesn't sound possible with lenses with motorized manual focusing such as 4/3 lenses. Am I missing something?


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 Post subject:
PostPosted: Mon Nov 26, 2007 2:38 am 
Hello calmac1991,

Extension tube are designed to provide space between the rear lens element and the sensor, thus allowing some close-up macro-work, these tubes sometimes disable AF and makes the image look "funny" but it gives you a decent macro reach (My past knowledge on Nikon, maybe not the 4/3 system).

Hope this helps! :D


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 Post subject:
PostPosted: Mon Nov 26, 2007 6:54 am 
good point calmac1991. I don't know anyone who's tried this, but without electrical assistance the focus is disabled on Zuiko lenses, from what I've read. You could however use OM or other lenses that don't depend on the electrical input and focus manually.


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 Post subject:
PostPosted: Fri Dec 07, 2007 3:10 pm 
BrianS wrote:
good point calmac1991. I don't know anyone who's tried this, but without electrical assistance the focus is disabled on Zuiko lenses, from what I've read. You could however use OM or other lenses that don't depend on the electrical input and focus manually.


That is correct, focus by wire from the digital Zuiko┬┤s requires the EX-25 to make it work.
I actually just bought the OM Zuiko 50mm 3.5 macro (to use on OM Bellows), but first impression is that it is almost as sharp as my digital Zuiko 50mm macro. And with the OM Zuiko you can focus and set the aperture manually and use very simple extension tubes.


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