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Kenko Teleplus Pro 300 DGX AF 1.4x Teleconverter for Canon EOS

Kenko Teleplus Pro 300 DGX AF 1.4x Teleconverter for Canon EOS
alaAverage 3.5

82 reviews

Apr, 2014

  • No negative mentions yet

alaTest has collected and analyzed 82 reviews from magazines and websites. Reviewers are impressed by the size. The usability is also mentioned favorably. There are some mixed opinions about the design.

value for money, usability, size

On average, users rate this product 79/100.

Review analysis

(Based on 82 reviews)

Expert Reviews  

User Reviews  

Showing 10 review(s)

Expert Reviews User Reviews
Showing 1 - 10 of 10 Show Reviews: in English | in other languages (15)

Expert review by:

Kenko Teleplus PRO 300 3x DG Teleconverter review


If you're looking to extend the maximum focal range of your lenses but don't have the money to spend on a specialist telephoto, a teleconverter is a great alternative.

Consumer review by:

Kenko Teleplus Pro 300 1.4x converter


Tested on Canon EOS 550D with 70-200mm and quite disappointed.

Autofocus works very inaccurate and way too slow; forget action photography ; Often ugly chromatic abberation

Consumer review by:

Kenko Teleplus Pro 300 1.4x converter


This is an excellent product. I use it with my Nikon D70 and Sigma 300mm F/4 APO Macro lens for nature. The images I get are very sharp with good color and contrast, even with the aperture wide open. In fact, I don't see any degradation in quality when...

Image quality is great

Focus is a bit slower.With the D70 and Sigma lens the EXIF data for focal length and aperture are recorded as if there was no converter attached. So, EXIF data saying 300mm at f/4 really means 420mm at f/5.6 when using this converter


Consumer review by:

Kenko KUT-300 Hi 37mm 3x Telephoto Converter Lens


This lens is atrocious. When fully zoomed in, the only clear part of the image is dead-center. The rest of the image is very blurry, slightly distorted with a round characteristic, and it has a severe color distortion. On the right side of objects in...

If I absolutely have to pick a positive aspect of this product it would be that it is not heavy

Horrible, horrible image

Consumer review by:

Kenko Teleplus Pro 300 1.4x converter


This review refers to the current Nikon-mount AFs version which supports mechanical and "silent wave" AF as well as the VR function.Initially I purchased this TC for the 80-400 VR Nikkor because I was in need for 500 to 600mm focal length. It quickly...

Does what no original Nikon TC does: one fits all and supports all features.Good build quality.Good optical quality.When attached to top-notch lenses you may even expect excellent results.Little to (virtually) no vignetting, but this depends on the...

Well, it is obviously not dedicated to a particular lens, so use it according to Kenko recommendations and do not expect too much.Well, it slows down the AF. How much, depends both on the illumination and the open aperture of the lens. f2.8 is less a...

Consumer review by:

Kenko Teleplus Pro 300 1.4x converter


I use this with my Nikkor 180 2.8 when the reach is needed. I'm usually shooting Ektachrome 100S for stock photography. The slides turn out very sharp when I use the Kenko TC. If there's a loss of detail, I can't see it with a 10x loupe.I've also used...

It's a great TC that maintains AF with my Nikkor lenses

none really

Consumer review by:

Kenko Teleplus Pro 300 1.4x converter


Greate optics, Hunts little bit for autofocus on my sigma 500/4.5. That may be because the Max aperture of the combo is 6.3. No loss of quality.

Optics, Maintains autofocus with Sigma 500/4.5 lens and all other Nikon AF lenses

Slows down autofocus for slow lenses

Consumer review by:

Kenko Teleplus Pro 300 DGX AF 1.4x Teleconverter for Canon EOS


Worked great with all my L lenses and Canon 5D. The auto-focus even worked with my 100-400 mm lens as full extension (with 5Dmk3).

Expert review by:

Kenko Teleplus Pro 300 AF DGX 2x review


A far cheaper option than a dedicated telephoto lens, can this teleconverter produce results worthy of the Canon or Nikon it's attached to?

Good build quality ; Far cheaer than Canon and Nikon's alternatives ; Included ouch

Not comatible with all lenses ; Noticeable dro in image quality

Expert review by:

Kenko Teleplus Pro 300 AF DGX 1.4x review


Affordable, third-party teleconverter DSLR lens with multicoated elements

Much cheaer than alternatives ; Decent image quality ; Smart drawstring ouch included

Some image degredation ; Not comatible with all lenses ; No weatherroofing

Product Specifications

Placed between the camera body and lens, a teleconverter contains a set of optics that will effectively increase the focal length of a lens by a specific amount. Common magnifications are 1.4 times and 2 times, but the Kenko Teleplus PRO 300 AF converter has a 3x magnification. For example, using a 3 times (3x) teleconverter will increase the focal of 300mm lens to 900mm.The Teleplus PRO 300 converter is made with high quality multicoated optical glass supplied by Hoya Corporation, the worlds largest manufacturer of optical glass. The PRO 300 3x is designed for use with lenses of 50mm or above and work best with telephoto lenses of 100mm to 500mm. The PRO 300 3.0x can be used with telephoto zoom lenses as well as prime lenses. However, Kenko does not recommend them for lenses that have a zoom range that starts under 50 mm.KENKO PRO 300 AF Teleplus converters have genuine Gate Array IC (Integrated Circuitry). It means that the converter's unique circuitry maintains signal integrity between the camera body and lens. These converters are designed to electronically operate the same way an original manufacturer's converter would provided there is enough light available.


Model:Teleplus PRO 300
Packaged Quantity:1
Product Line:Kenko

Lens System

Special Functions:Tele
System Type:Lens accessories

Lens System Mounting

Mounting Type:Canon EF/Minolta A-type

Optical System


Service & Support

Type:1 year warranty