| Re: which extension tubes for canon eos 400D Quote:
Originally Posted by glsammy The set I've got have electrical contacts so your camera can meter correctly, but to me it hardly matters as I tend to use mine with my macro lens where I usually use manual mode anyway.Certainly no need to stick with the camera makers brand. The set I've got came from Jessops and work just fine.  | surely even on manual you need your camera to do ttl metering - or are you using a hand held meter ?
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