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01-20-2010, 12:35 AM   #1
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Teleconverter hack?

So I never use my teleconverter, and I can get them dirt cheap all day long on ebay. So I was thinking I could just pull the optics out of the converter I have and use it as an extension ring to get macro shots. Think it would work?

The one I have is a good 1 1/4 inch or more thick, but I don't know if thats thick enough to make too great a difference.

01-20-2010, 12:38 AM   #2
Damn Brit
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People do it all the time, you should find quite a few mentions of it if you search this forum.

Measure it in mm. This isn't a 100% technical but 50mm of extension on a 50mm lens should give you about double magnification (for example).
01-20-2010, 12:53 AM   #3
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Lots of people do it. The only thing I would be worried about is vignetting when using it on a film sensor, but that probably isn't your purpose and I might even be wrong about that.
01-20-2010, 01:38 AM   #4
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QuoteOriginally posted by Damn Brit Quote
People do it all the time, you should find quite a few mentions of it if you search this forum.

Measure it in mm. This isn't a 100% technical but 50mm of extension on a 50mm lens should give you about double magnification (for example).

sweet! so it actually works. Definetly doing this tommorow thanks!

01-20-2010, 03:51 AM   #5
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DIY with photos.

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/57964-pictures...rt-tc-ext.html
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