Excerpt: I use this lens with a Canon 70-300mm lens.The Kenko gives automatic focusing up to about 200mm,but from there to 300mm it does not.One must focus manually in this region-which is no big problem.The teleconverter is well made and has the look of qualityI would recommend it.
Pros: Easily Interchangeable, Fast / accurate auto-focus, Lightweight, Rugged, Strong Construction
Great product in manual focus. Good image quality. I would recommend it.
31 July 2012
Summary: I use this teleconverter with my Nikkor 55-300mm/f4.5-5.6G lens and a D5100 and it works great in manual focus. Don't expect to use AutoFocus with this lens. Image quality is quite good and you can take great shots even with no tripod if you are careful. I think this teleconverter is a great alternative solution for waiting to have money to buy a more powerful zoom lens.
Excerpt: I have excellent results with this converter using my Nikon 300 f4 lens, even hand held most of the time. I shoot with a Nikon D3s so I do push the ISO up to keep my shutter speeds over 600. Technique is key with this combo. It doesn't work with my 80-400 over 300mm zoom. The auto focus gets confused on what you're trying to focus on and it also gets to distorted.
Pros: Consistent Output, Fast / accurate auto-focus
Excerpt: Bought this product to use with a Canon 70-300DO lens for protability in the field. It works well so far and I have tested it on other lenses including 28-135. It AF at all ranges and all the lenses tested. Also on several Canon camera bodies from Pro to a 30D. Images do not show any degradation.<br />Early in the game but am very satisfied.
Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Lightweight
Summary: In my Book It gets 5 stars all around , It up there too with the my Kenko 1/4 Tele converter from the first time I use it. It was awesome , I love having options available to me when I'm traveling and shooting Pix , I like to travel light and shoot a wide range of subjects , from close ups micro lens and Tele zoom and wide . Adding a tele converter doubles my options from near and far. This Teleplus pro 300 Dgx is right on for me.