The Kenko TelePlus MC4 AF 2.0X DGX Teleconverter (also known as a tele-extender) gives you the dramatic effect of doubling the focal length of your lens by 2x, and will cut back the amount of light by 4x (2 f/stops). The MC4 features a 4-element, 4-group design with multi-coated lens elements, and fully automatic diaphragm coupling. With the Kenko TelePlus MC4 DGX your prime lens' depth of field is reduced by 1/2, but retains the prime minimum focusing distance. Using a 2x teleconverter with a 300mm lens will effectively increase the focal length to 600mm. A lens set to f/2.8 will now be f/5.6.
The MC4 AF 2.0X DGX converter has genuine Gated Array IC (Integrated Circuitry). This means that not only the converter's own unique data but all data sent from the camera body provides full exposure metering and linkage for electronic flash photography.
Teleconverters are not recommended for lenses wider than 50mm, e.g. 28-105mm. However, full AF operation is only possible with lenses with open aperture of f/2.8 or brighter. Please be aware that AF will work properly only if there is enough light and contrast on the subject to activate the camera's AF sensors. Manual focusing is recommended when using lenses with smaller open f-stop value than those given above.
| Magnification |
2.0X Exposure magnification: Approx. 4 times |
| Minimum Focus Distance | Same as prime lens |
| Lens Diaphragm | Fully automatic coupling |
| Lens Elements/Groups | 4/4 |
| Lens Coating | Digital multi coating |
| Length | 1.02" (26mm) |
| Weight | 3.9 oz (111 g) |
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I would buy this product again!
[...]Wow! What a difference it makes with my 70-200 Zoom. I love the 400mm. The photos are still excellent. They are very clear with no hint of distortion or color...Read complete review
[...]Wow! What a difference it makes with my 70-200 Zoom. I love the 400mm. The photos are still excellent. They are very clear with no hint of distortion or color inaccuracy. This teleconverter's quality is competitive the name brands at a much lower price. It didn't take me long to learn that the 400mm setting requires a steady hand. The VR work quite well at 400mm but you have to concentrate on keeping the camera steady. It would probably be wise to use a tripod.
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The converter seemed to be well built. However it will significantly slow down auto focussing. Since I intended to use it mostly for sports, I had to return it for refund after a series...Read complete review
The converter seemed to be well built. However it will significantly slow down auto focussing. Since I intended to use it mostly for sports, I had to return it for refund after a series of test shots.
You might be able to use it for still life but moving objects are almost impossible to capture.
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Reviewed by 11 customers
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Comments about Kenko TelePlus MC4 AF 2.0X DGX Teleconverter:
I bought this to expand my reach with my current gear but was very disappointed. The teleconverter would not let my use the VR on my lenses and kept making my mirror jump which made all the photos blurry. Maybe I got a bad copy but I am defently returning this item.
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Comments about Kenko TelePlus MC4 AF 2.0X DGX Teleconverter:
Teleconverter works very well; the adjustments for f-stop loss are a little tricky to get used to, but overall it does a fantastic job and for a good price! Beats a new lens if you're in a pinch.
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Comments about Kenko TelePlus MC4 AF 2.0X DGX Teleconverter:
I have this tele-converter on a nikkor af-s 18-200mm 3.5-5.6 primarily for now. The auto focus does work but you need a good amount of light. The camera records the correct aperture and focal length. I would buy again and recommend to a friend.
Pros
Cons
Best Uses
Comments about Kenko TelePlus MC4 AF 2.0X DGX Teleconverter:
The converter seemed to be well built. However it will significantly slow down auto focussing. Since I intended to use it mostly for sports, I had to return it for refund after a series of test shots.
You might be able to use it for still life but moving objects are almost impossible to capture.
Pros
Cons
Best Uses
Comments about Kenko TelePlus MC4 AF 2.0X DGX Teleconverter:
I wanted a converter in order to improve the detail in my photographs of birds. The 2 x converter allowed me to get better images provided I use my tripod. My next step (it never seems to end) is to purchase a more stable tripod in order to improve the sharpness of the photographs. Since I was warned in the B&H reviews of the converter that the focus would be manual only I was not surprised that the autofocus did not work. I did not hear any grinding sounds as some reviewers have commented.
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Comments about Kenko TelePlus MC4 AF 2.0X DGX Teleconverter:
Auto focus if not working as claimed.Manus focus is OK.
Pros
Cons
Best Uses
Comments about Kenko TelePlus MC4 AF 2.0X DGX Teleconverter:
[...]Wow! What a difference it makes with my 70-200 Zoom. I love the 400mm. The photos are still excellent. They are very clear with no hint of distortion or color inaccuracy. This teleconverter's quality is competitive the name brands at a much lower price. It didn't take me long to learn that the 400mm setting requires a steady hand. The VR work quite well at 400mm but you have to concentrate on keeping the camera steady. It would probably be wise to use a tripod.
Pros
Cons
Best Uses
Comments about Kenko TelePlus MC4 AF 2.0X DGX Teleconverter:
[...] I was finally able to carry it out and play with it. It is attached to my 70-200 Zoom. Wow! What a difference between 200mm and 400mm. The pictures are still crisp and clear. I see no deteriation in the quality. I learned in a hurry that 400mm requires a steady hand. You will probably do a lot better with a tripod.
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Comments about Kenko TelePlus MC4 AF 2.0X DGX Teleconverter:
Very good value for money to add considerable bang to lens zoom capabilities. Works well in outdoor and very good light conditions. Tends to hunt in AF if subject is not large and easy to focus upon.
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Comments about Kenko TelePlus MC4 AF 2.0X DGX Teleconverter:
Works best in manual focus, hunts in auto
Pros
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Comments about Kenko TelePlus MC4 AF 2.0X DGX Teleconverter:
Very easy to use.Hight quality. I use normally with 500mm for animal and birds. It is fantastic.
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