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extension tube with tripod collar

Aizan Sasayama , Mar 28, 2005; 06:24 p.m.

Does anybody make a 50mm extension tube with a tripod collar?


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Peter White , Mar 28, 2005; 09:10 p.m.

I don't think so. But Canon makes an adjustable extension tube with tripod mount that covers 50mm. It's called the Auto-Bellows. ;-)

Aizan Sasayama , Mar 28, 2005; 09:15 p.m.

Eh, I got one of those, it's just so big!

Mark Wahlster , Mar 28, 2005; 09:46 p.m.

The tripod collar from a 200mm macro 300mm f4.0 or 400mm f4.5 will fit the extenders and extension tubes perfectly if you place a piece of 3-4 ounce tooling leather between the tbe and the collar I use this setup with a 200mm f2.8IF nFD and 2X-B as a light weigh compact 400mm f5.6 for backpacking.

I have a photo of it here:


These are not easy to find alone but a good excuse to buy a nice telephoto.

It is possible that one of the new EF mount lenses uses the same diameter collar.

The leather allows the tube to spin smoothly but it would most likely work with the proper thickness cardboard. or even felt.

Mark Wahlster , Mar 28, 2005; 09:48 p.m.

Here's the setup

Chris Leck , Mar 28, 2005; 09:59 p.m.

Nikon makes the PN-11 52.5mm extension tube with a tripod collar.

Mark Wahlster , Mar 28, 2005; 11:57 p.m.

What would a Nikon extension tube have to do with a Canon FD mount camera? The rare and hard to find Nikon lens to FD body adapter will sell for as much as $300.00. I think I have ever seen a FD lens to Nikon body adapter So trying to cobble this up would be a nightmare not to mention it would end up adding maybe more then 10mm to the extension.

Aizan Sasayama , Mar 29, 2005; 05:19 a.m.

Hot! Sounds like a plan. Sure would be a lot easier than switching to Nikon. =)

Will Webster , Mar 29, 2005; 09:17 a.m.

The extension for the Vivitar Series 1 90 mm f/2.5 has a tripod mount. What I'm not sure of is whether it's an empty tube, or it has optics to match the lens - and if it has optics how well it would work with my Tamron 90/2.5 (49 mm filter). Anybody have experience with this?


Aizan Sasayama , Mar 29, 2005; 02:03 p.m.

Very interesting. Do you know if it rotates from horizontal to vertical?

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