Quote:
Originally Posted by Marcuscarcus
My extension tube is a canon from the old film days. 12mm.
Do the kenko ones allow for control over aperture
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Yes, The Kenko auto tubes have a full set of contacts allowing control over aperture and autofocus in the normal way. The camera doesn't know the tubes are fitted so the aperture numbers displayed on the body (and in EXIF) remain the same with or without the tubes.
The newer Kenko tubes are also EF-S compatible (my old ones aren't).
The catch is they are not as well built as the Canon tubes but I'm happy to use them with with small, light lenses. The seem fine with my 100mm macro and 65mm macro (which is actually heavier!) both of which I often use with a macro flash hanging from the lens....several times the wight of a 50mm f/1.4. I've had 5 years of regular use out of mine and they are still going strong so I've no complaints
Does a teleconvertor even fit on an EF-S lens? I would have thought it would give more reach in the normal way if it physically fitted onto the lens
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Andrew -
My pics on Flickr
Canon 7D, 24mm f/2.8, 50mm f/1.4, MP-E 65mm macro, TS-E 90mm, 100mm macro