Buyer guide for Opteka Auto Focus DG Macro Extension Tube Set for Nikon Digital SLR Cameras They are mounted in between the camera body and lens to create more distance between the lens and film plane The Opteka Auto Extension Tube Set contains three tubes of different length, a 13 mm, 21 mm, and 31 mm, which can be used individually or in any combination to obtain the desired magnification The extension tubes have no optics Designed with all the circuitry and mechanical coupling to maintain auto focus and TTL auto exposure with Canon EOS SLRs Contains three tubes of different
Opteka OPTETN length, a 13mm, 21mm, and 31mm ...
More Details » Opteka OPTETN Review: I got this set for a gift and I'm fairly well pleased. You really can take some great close ups and capture incredible detail. My only complaints are that it feels cheap and that the auto-focus is hit or miss.When I say it feels cheap, I mean that it's very light-weight, clearly plastic, and you can hear parts rattle a bit. The fit to the lens and the camera body isn't as smooth as I'd like. I often feel like something's going to snap as I ... Read more »
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