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06-04-2015, 01:27 PM   #1
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Tefnon macro 35-80mm 3.5-4.8

Hi all,

In my Box of Assorted Junk there's a Tefnon 35-80 that came with a P30 (I think). It's a 35-80 zoom lens with automatic mode. From Google I've found tefnon was brand used by a manufacturer called Kobiri but not much more. Does this name ring a bell with anyone? Any additional info?

06-04-2015, 09:38 PM   #2
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Here is something about Tefnon:
06-04-2015, 09:56 PM   #3
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ma-ledezma's Avatar

Join Date: Aug 2013
Location: Texas
Posts: 107
I Have a Vivitar 70-210 4.5 zoom lens that was made by Kobori. My copy is for Canon FD mount so I don't have any digital files taken with this lens. Try it a post your results.
06-05-2015, 12:23 PM   #4
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Original Poster
I can post some test shots tomorrow. Quick question - on the K5ii, when I start up with an older lens, I'm asked to input the focal length. This is simple for pirmes, but what do I put in for a zoom? And what does this affect?


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