Teleconverter magnification comparison. (5 imgs)

Started Aug 25, 2013 | Photos thread
Nicols Contributing Member • Posts: 865
Re: Klaus...

brandrx wrote:

I think that my Kenko and your Kenko would have to be tested at the same distance and with the same lens before you can make a conclusion like that. My shot was at a subject distance of about 75 feet (23 meters).

Hi, Ron.

I have tested mine with the DA300, F100 and the Tamron SP 90/2.5, at distances from 0,5m to more then 500m, and I always got scale increases between 1,53 and 1,57x. I have the impression that the lens doesn't have a strong influence on this factor, and the only explanation that I can think of is that my Kenko is different from yours and the one Greyser refers to.

Cheers - Klaus

 Nicols's gear list:Nicols's gear list
Pentax K10D Pentax K-5 Pentax K-3 Pentax smc DA 16-45mm F4 ED AL Pentax smc DA* 300mm F4.0 ED (IF) SDM +16 more
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