Kenko 1.5x DG AF Teleplus Teleconverter for Pentax AF

Comments about Kenko 1.5x DG AF Teleplus Teleconverter for Pentax AF:

using with a 300mm pentax da lens on my pentax k-x.
had some hesitations at first,after reading other reviews about TCs. This teleconverta is a bit cheaply built, however, after you put it in place, it is fine. Now, about the pictures...You must shoot in bright sun light for the AF to work. There is a slight delay, and sometimes it hunts. However, the results are, for me, much better than my expectations. No color aberrations, and pictures seem almost as sharp as you would expect.
I am glad i bought it. Use it more than i expected.

Comments about Kenko 1.5x DG AF Teleplus Teleconverter for Pentax AF:

I've only tried test shots with the tele-converter, but I think it's going to be just what I need in my bag for an upcoming trip. I was happy to find a TC for Pentax. Thanks for being there B&H!

Comments about Kenko 1.5x DG AF Teleplus Teleconverter for Pentax AF:

I use this with a very sharp Pentax SMC F* 300 mm f4.5 for an effective focal length of 450mm (675mm with APS-C sensor) for wildlife shooting. There is a very slight loss of sharpness with the use of the teleconverter but I do not find it objectionable. I suspect the sharper the lens it is used with, the better the results are.The teleconverter works with some of my other lenses, but auto-focusing is sometimes not very good unless the shot is taken in good sunlight. The AF won't work with some lenses, such as a 90mm Tamron macro, but I manually focus my macro shots anyway.It is well worth the [$] price for my uses.But be aware that the auto focus will not work with all lenses. Which lenses those might be you'll have to find out by trial and error.

Comments about Kenko 1.5x DG AF Teleplus Teleconverter for Pentax AF:

I use this with my 55-300 Pentax, which is a sharp lens. Attaching the Kenko robs me of considerable sharpness and speed (and if you begin with f 5.8 with the 55-300 racked out we're talking f 6.5 or something) BUT considering this gives me the equivalent of 675mm, it can be a good option on a bright sunny day. Mechanically and electrically, the Kenko does the job on my K20D, and autofocus works well when there is enough light. Some folks have noted that the Kenko is remarkably similar to the Tokina some Pentax users praise...which might not surprise us too much since Tokina and Kenko are both Hoya divisions...as is Pentax, of course!

Comments about Kenko 1.5x DG AF Teleplus Teleconverter for Pentax AF:

NO AUTO-FOCUS WITH PENTAX *STAR LENSES AND ON MANUAL FOCUS NO IN FOCUS INDICATOR LIGHT OR BEEP-WILL KEEP BECAUSE OF PRICE AND HOPEFULLY WILL WORK WITH REGULAR LENSES

Comments about Kenko 1.5x DG AF Teleplus Teleconverter for Pentax AF:

When I mounted the teleconvertor to my Pentax 50-135 f2.8 DA*SDM lens it would not autofocus, and the camera showed MF on the screen. It was also very difficult to mount on the lens. I am returning it to B&H for a refund. I would not recommend it.

Comments about Kenko 1.5x DG AF Teleplus Teleconverter for Pentax AF:

Used with the Tamron 70-300 zoom. Picture quality down-graded somewhat but still acceptable. The problem is the increasing purple fringe on the high contrast images have to be post processed heavyly with the photoshop. Also auto focus hunting too much. 4 stars for the price.

Comments about Kenko 1.5x DG AF Teleplus Teleconverter for Pentax AF:

This telextender is a great buy, period! Kenko is owned by Hoya and the glass is Hoya glass, of course. I've been reluctant to buy a telextender because I was afraid that it would make lousy pictures, not good focus, etc.I get many compliments on my photography but I'll be the first to admit that many of the camera magazines go into more detail about performance and exceeds my interest in photography. When I have to look very hard for the differences in 2 photos and conclude that one is markedly better than the other, that's beyond my interest level. I coupled a Kenko 1.5 teleconverter to a Tamron 70-300 telephoto and it made some great pictures. While rafting down the Snake River in Jackson Hole, Wyoming, it made some outstanding shots of eagles in flight and one eagle in the nest. I went to an outdoor concert (at night) and got some great shots with the Kenko..great exposure/contrast, etc. (The Doobie Brothers and Chicago never looked better). Much of this is due to my Pentax 100D w/ image stabilization....this feature saves a lot of money in that you don't have to buy a VC lens. OOPS, this isn't a Pentax review, so I'll move on. There's nothing really negative about the teleconverter that I have found so far. If you are into Photoshop Pro software and the prosumer market, you will feel better if you spend $800-$1,000 for that separate high-end lens and not use the teleconverter. The[$]teleconverter is just fine with me.

Comments about Kenko 1.5x DG AF Teleplus Teleconverter for Pentax AF:

I use the converter with my Pentax K10D and Pentax-DA 1:4-5.6 50mm-200mm ED lense. Given enough light, autofocus works extremely well throughout the zoom range of the lens. Exposures are usally taken at ISO400 with single and continous autofocus and can produce good/excellent results. With lense factor, images can be captured at up to 450mm. Considering price of expensive optics, at under [$]this product works extremely well, is of solid quality, and has become an important part of my equipment setup.

Comments about Kenko 1.5x DG AF Teleplus Teleconverter for Pentax AF:

I use this with my 70-300mm Sigma lens and, I am surprised that it stays sharp.

Comments about Kenko 1.5x DG AF Teleplus Teleconverter for Pentax AF:

I'm still experimenting with this accessory. Based on some macro shots I've taken, it appears that there is little or no loss of IQ using this TC.

Tele shots with a super-zoom are another matter but that may be attributable to softness in the main lens and the greater sensitivity to camera motion at long FLs--especially with the loss of an f-stop (with a lens that was slow to begin with.)

For sure, AF becomes problematic with this TC in subdued light/low contrast situations--there's a whole lot of huntin' goin' on (over a very wide range) and sometimes it just can't find anything to focus on.

Bottom line: it has it's limitations but, paired with a sharp fast lens and given good light, I think it's a useful accessory.

Comments about Kenko 1.5x DG AF Teleplus Teleconverter for Pentax AF:

I use the converter with my Tamron 70-300 lens. Generally it is OK, but the quality of the pictures gets worse, and the focus is often not quite good, especially at higher focus distances. In fact, it is just what you can expect at that price, so I would not say I am disappointed.