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  • Kenko 1.4X PRO 300 Teleconverter DGX for Canon EOS Digital SLRs
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Kenko 1.4X PRO 300 Teleconverter DGX for Canon EOS Digital SLRs

| 13 answered questions

List Price: $399.00
Price: $154.95 & FREE Shipping. Details
You Save: $244.05 (61%)
Only 15 left in stock.
  • With the PRO 300 1.4x, DGX full AF operation is possible with camera lenses having a maximum aperture of F4 or brighter.
  • The PRO 300 can be used with telephoto zoom lenses as well as prime lenses.
14 new 2 used from $175.00

Frequently Bought Together

Kenko 1.4X PRO 300 Teleconverter DGX for Canon EOS Digital SLRs + Kenko DG Auto Extension Tube Set for the Canon EOS AF Mount.
Price for both: $304.90

Buy the selected items together


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Technical Details

  • Brand Name: THK Photo Products Inc.
  • Model: K1.4PRO.300DGX-C
  • Lens Type: Teleconverter
  • Weight: 132 grams

Read about our customers' top-rated lenses and cameras on our review pages: Lenses, Digital SLR Cameras, Compact System Cameras

Product Details

  • Product Dimensions: 0.4 x 0.4 x 0.4 inches ; 0.2 ounces
  • Shipping Weight: 7 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B002C6QC3E
  • Item model number: K1.4PRO.300DGX-C
  • Average Customer Review: 3.9 out of 5 stars  See all reviews (50 customer reviews)
  • Date first available at Amazon.com: October 2, 2001

Product Description

Kenko AF 1.4x Super High Quality Teleplus converter also has genuine Gated Array IC and is compact for light weight and easy handling. Full AF is capable with lenses having a maximum aperture of F/4.5 or brighter. (Manual focusing will be required with lenses of smaller aperture.)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 2 times (2x) teleconverter will increase the focal of 300mm lens to 600mm. The Teleplus PRO 300 converters are made with high quality multi-coated optical glass supplied by Hoya Corporation, the worlds largest manufacturer of optical glass. These glass elements are designed to match the optical quality of the prime lens (even at the edges) and telephoto zoom lenses. The optical design of the elements and light path is wide enough not to cause vignetting. The PRO 300 family is designed specifically to be used with prime telephoto lenses of 100mm or above, such as, a 300 mm f/2.8 lens, and work best with telephoto lenses of 200mm to 500mm. The PRO 300 can be used with telephoto zoom lenses as well as prime lenses. However, Kenko does not recommend them for zoom lenses that have a range starting under 50 mm.

Customer Questions & Answers

Customer Reviews

It's costs far less than the Canon model and I may even buy another one.
David Garcia
So you may have to remove the convertor or the battery from the camera when not in use if you do not like to recharge every day.
G.V.Suresh
The Kenko 1.4x Pro 300 teleconverter works great with my Canon 70-300 IS zoom.
Amazon Customer

Most Helpful Customer Reviews

46 of 46 people found the following review helpful By Photography Fan on September 21, 2011
Verified Purchase
Tried it, works with the following lenses:
1. Canon EF 50mm F/1.4 USM. (Auto focus ok)
2. Canon EF 75-300mm F/4-5.6 USM II (Auto focus ok)
3. Sigma 50-500mm F/5-6.3 OS APO HSM (no auto focus)
4. Sigma 8-16mm F/4.5-5.6 HSM (auto focus ok)
5. Tamron SP 70-300mm F/4-5.6 Di VC USD (auto focus ok)

Notes:
1. Aperture drops by 1 stop as expected.
2. Reports correct focal length and aperture.
3. Quite soft with the Canon 50mm F/1.4 at largest aperture. "Dreamy" portraits.
4. Tamron 70-300 @ 300mm with teleconverter (x1.4=420mm)is almost as sharp or sharper than the Sigma 50-500 @ 420mm without the teleconverter.
5. Focus hunts a bit with the Tamron 70-300 when there is not enough light (around sunset).
6. Does not work with EF-S lenses due to the protruding part at the back of the EF-S lenses.
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31 of 31 people found the following review helpful By Brian Wallace on October 3, 2011
I purchased this teleconverter to replace my DG version because of the updated reporting. I've used this TC with a number of lenses including:

Tamron 17-50 f/2.8
Canon 50 f/1.4
Canon 85 f/1.8
Canon 70-200 f4
Sigma 70-200 f2.8
Canon 300 f4

I also own the Canon 1.4x extender and have found their performance to be comparable. It is an especially good option for Canon's fast budget prime lenses (50 1.4/1.8, 85 1.8, 100 2.0) since they have big apertures but aren't compatible with the Canon. On these primes it performs especially well stopped down one stop. So a 50 f1.4 becomes a very usable 70 f2.5 or 2.8 and the 85 1.8 becomes a very usable 120 f3.5. You can think of this as a good option for convenience more so than speed. If you try and use this to make a 70 f2 you'll be disappointed in how soft the picture.

It works extremely well (even wide open) with my longer zooms and my 300 prime. The other huge benefit to this teleconverter is that it will not disable autofocus if you use it with a reporting f5.6 lens. For example, if you own the EF 400mm f5.6 and put the Canon 1.4x on it and put it on anything but a 1D series camera the autofocus would be disabled. Not so with this one - the minimum aperture is reported correctly (f8) but the autofocus continues to be enabled. Of course, good light is a must for accurate autofocus. This is not an issue with a non-reporting lens like a 70-300 IS USM, it will attempt to autofocus no matter what).

All in all a worthy and viable alternative to the Canon 1.4
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13 of 13 people found the following review helpful By Jon Rista on July 29, 2012
Verified Purchase
I purchased this Kenko 1.4x Teleplus PRO 300 DGX TC for a couple reasons. First, I did not want to spend around $500 on my first teleconverter, and second I wanted to use it with my Canon EF 100-400mm f/4.5-5.6 L IS lens. Technically speaking, the 100-400mm does not fully support a TC on most camera bodies, as the aperture becomes f/8 (Both the focal length and relative aperture are multiplied by the conversion factor, so 5.6 * 1.4 = 7.84 ~= f/8), however the Kenko TC does not explicitly prevent AF when it is attached...it keeps it available, with the express caveat that AF may not work or may not work well when used with an f/5.6 lens. This boded well for the type of photography I do most...birds, BIF, and wildlife.

In practice, I am pleased with the this TC. Optically it is good, and does not seem to degrade IQ much. I will say that this TC does not have the Canon optical touch, and some optical aberrations, a little bit of CA and some spherical aberration, are visible at times. I wouldn't expect any different for a TC that is almost half the cost of Canon's...however if I ever need a TC for a Canon supertele (300mm f/2.8, 500mm f/4) I'd definitely go with Canon's dedicated brand-name TC's. The Canon 100-400mm is a bit soft wide open, and that does not change when the TC is attached...however I have not experienced any marked additional degradation in IQ over using the 100-400mm without the TC. The extra reach, at 560mm (or ~900mm with an APS-C body like the Canon 7D) is definitely a bonus when it comes to birds, and at times wildlife (great for ungulate headshots...although I recommend using a bare 400mm lens when you want full-body shots of deer, elk, etc.) I have not noticed that the viewfinder gets too dark to use with the Kenko TC attached...
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14 of 15 people found the following review helpful By Christopher W. Burke on August 13, 2011
I have been using this TC with my Canon 300mm F4 IS for nearly a year now. Pictures with the converter attached are significantly more detailed than when using the lens without the converter and then cropping pictures to equal magnification. For birders using this Canon 300mm lense you will appreciate this converter. Feather detail is much better using the converter. Picture quality remains excellant with the converter. I cannot see any quality loss even at 1:1. Very well pleased with this profuct. Also, it interfaces nicely with lens and camera.
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6 of 6 people found the following review helpful By Amazon Customer on October 4, 2011
Verified Purchase
The Kenko 1.4x Pro 300 teleconverter works great with my Canon 70-300 IS zoom. I decided on this
teleconverter because 1) the Canon one is just too expensive for as much as I would use it and 2) the Kenko had positive reviews that it would work with my Canon zoom. As with any teleconverter there is a loss of light and slight sharpness, but is still a bargain when you want that extra reach in good light conditions.
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