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RussB
newbie


Reged: 01/03/2006
Posts: 19
Extension Tubes
      #574011 - 25/11/2007 17:00

Hi All

I have just bought a beercan (70-210mm F4) on ebay, and am going to try to use it for macro work - among many other things of course. The lens has a "macro" setting at 210mm, but the image size is only 1:4, not the 1:1 I am used to with my cheapie Cosina 100mm F3.5 + close-up filter.

Has anyone on this forum used a beercan with an extension tube ? If so, what results did you get ? Or am I barking up the wrong tree ?

Many thanks

RussB

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Roger_Provins
Made-it Man


Reged: 22/10/2005
Posts: 2836
Loc: Gloucester, UK
Re: Extension Tubes [Re: RussB]
      #574033 - 25/11/2007 17:49

The "beercan" close focusses at all focal lengths - not just at 210mm. I've tried getting a larger (maybe almost 1:1) image on the frame but with limited success.

Here's a thread with some useful information and some photos.

I took this photo using a 2x converter and the "beercan" - it's about half the original frame.



Good luck.

--------------------
Rog

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