Kenko Teleplus PRO 300 DGX 1.4x AF Teleconverter
We have tried the Kenko with a Tamron 70-300VC on the Canon T1i and with a Canon 100mm F2.8 macro lens on a Canon T2i. We can't say we were overly pleased with the results.
We found that the Kenko seemed to affect autofocus particularly when clutter was present. Images were sharper without the Kenko with both lenses.
We found we could crop a photo and achieve the same or better image quality than the Kenko could provide.
We were disappointed.
We might use it when we go to a lake to get pictures of water fowl at a distance, or in large open spaces.
Initially we thought that the Kenko would work for us, but, our first trials with it were of stationary subjects within 20 feet, we will likely play with it some more later in the summer once migration and nesting is complete, At this point we really can't recommend the Kenko for the type of birding we do, which is walking and taking photos hand held. We may have had better results if we used a tripod or maybe a monopod. We may experiment with them later in the summer or fall at the lake with a tripod.
The Kenko seems to work best in bright sunlight, we found its performance dropped even in bushy areas before leaves sprouted.
For those who are visiting the blog for the first time there are quite a few sample pictures using the Kenko further down in the blog.
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