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DIY Project, Macro lens extender tube... Log in | Log Out | Topics | Search
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Classic Camera Repair » Archives-2005 » DIY Project, Macro lens extender tube.... Prigles can « Previous Next »

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paul ron

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Posted on Monday, December 12, 2005 - 02:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

http://www.photocritic.org/macro.html

Check this out, you may find it usefull... This guy used a Pringles can as a lens extender tube. Nice!
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rick

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Posted on Tuesday, December 13, 2005 - 06:27 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

here's another one i like along similar lines... pretty fancy compared to the chip can...

http://rick_oleson.tripod.com/index-118.html
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Jim Brokaw

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Posted on Saturday, December 17, 2005 - 02:30 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

I suggest that extension tubes, with automatic aperture, can be made from cheap teleconverters. The 'four element' teleconverter is typically about 25mm deep, and the 'seven element' teleconverter is typically about 35-40mm deep.

Buy one at a camera show or eBay, often they are less than $10, I've even gotten some for $1 in the 'bargain box' before. Condition of the glass doesn't matter for this use, so you can sometimes get them -real- cheaply. Typically these teleconverters have an auto aperture mechanism in them... just take out the glass elements while being careful to not damage teh aperture mechanical bits, then you have an open tube that preserves the auto aperture operation.

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