Kenko TelePlus MC4 AF 1.4x DGX Teleconverter for Sony Alpha Digital SLRs

Kenko TelePlus MC4 AF 1.4x DGX Teleconverter for Sony Alpha Digital SLRs

Kenko TelePlus MC4 AF 1.4x DGX Teleconverter for Sony Alpha Digital SLRs

B&H # KE14X4DGXS MFR # MC4-AF1.4DGX-MS
Kenko TelePlus MC4 AF 1.4x DGX Teleconverter for Sony Alpha Digital SLRs

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Product Highlights

  • For Use with Sony Alpha Digital Cameras
  • Integrated Circuitry
  • Mult-Coated Lens Elements

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Kenko MC4-AF1.4DGX-MS overview

  • 1Description

The Kenko TelePlus MC4 AF 1.4X DGX Teleconverter gives you the dramatic effect of increasing the focal length of your lens by 1.4x. 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 1/1.4, but retains the prime minimum focusing distance.

TelePlus converters have genuine Gated Array IC. 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.

In the Box
Kenko TelePlus MC4 AF 1.4x DGX Teleconverter for Sony Alpha Digital SLRs
  • Front & Rear Caps
  • Pouch
  • 1-Year Limited Warranty
  • Table of Contents
    • 1Description

    Kenko MC4-AF1.4DGX-MS specs

    Mount Sony A
    Magnification 1.4x
    Optical Design 4 Elements in 4 Groups
    Length 0.98" / 25 mm
    Weight 3.8 oz / 110.0 g
    Packaging Info
    Package Weight 0.3 lb
    Box Dimensions (LxWxH) 3.2 x 3.2 x 3.0"

    Kenko MC4-AF1.4DGX-MS reviews

    TelePlus MC4 AF 1.4x DGX Teleconverter for Sony Alpha Digital SLRs is rated 4.3 out of 5 by 27.
    Rated 5 out of 5 by from Excellent Performer I have mounted this on several lenses: Sony 70-400 mm G2, Sigma 105mm DG OS EX Macro lens, and Tamron 70-300 mm lens. Then using either Sony LAE3 or LAE4 the assembly was mounted on a Sony A7R Mark2. The Kenko performs extremely well and most autofocus situation work fine, the camera can record focal length and other information. In tripod mounted tests the teleconverter sometimes reaches incomplete autofocus of a target and some contrast is lost using the TC. But the number of closely spaced lines on the target is not degraded relative to use of the lens without the TC. This was true for the excellent Sony 70-400 lens even at 400mm (560 mm with the TC).
    Date published: 2015-09-09
    Rated 4 out of 5 by from Not perfect but well worth having I tested the teleconverter on a Sony G 70-300 SSM (original) and�Tamron 150-600 G2� with the Sony A99 body. The 70-300 works well. Autofocus is good. Image quality doesn't seem much worse in normal conditions, except there is rather more vignetting. Vignetting becomes overwhelming with the 150-600 lens. It could still produce some 'interesting' photos, but it doesn't give me a usable 840mm lens equivalent as I was hoping. I shall have the teleconverter with me whenever I'm out and about with the 70-300 lens, since it's so small and light, just in case there's any call for it, but I'll still be hauling the heavy 150-600 around whenever I'm planning longer lens photos.
    Date published: 2017-11-21
    Rated 5 out of 5 by from Versatile, cheap, and good! I had about given up on using a teleconverter on my Sony A330. I was interested in adding some reach to my Tamron SP 70-300 USD, but that lens was supposed to be too slow (F5.6 aperture) to autofocus with any of the Sony or Tamron 1.4x teleconverters. I borrowed a TelePlus MC4 1.4x DGX, was amazed that it autofocused, so I quickly ordered one! I was also pleasantly surprised that it was chipped, and thus reported the correct F-stop and focal length via exif data, so that Sony's in-body image stabilization works correctly. It has an 8-contact connector, so ADI flash functions are also available. Because the front element of the DGX is recessed, it physically fit and worked at least in MF mode with all my Tamron, Sigma & Sony lenses. It even worked (in MF mode) with my Sony AF500/F8 reflex lens, producing a nice 700mm super-telephoto lens. It takes away one F-stop from all lenses' speed, so the Sony 500 became an F11, but it was still useable. Kenko recommends using it with focal lengths of 100mm or more, but I also got decent results with my Tamron 60 macro lens. The build quality is good for its price range, and seemed to fit the camera & lenses securely. Image quality with it is decent, although I noticed some CA coming through in back-lit shots, especially with my zoom lenses. I'm betting that would mostly be eliminated with a high-quality prime lens. Although it will auto-focus with the Tamron 70-300, it requires good light which limits it for photographing distant birds in flight. The only other issue I noted was that, during a cold weather shoot, the chip temporarily de-registered itself from the camera, so that the focal length and F-stop weren't correctly recorded. The images seemed fine, though. Don't know if that was an issue with that particular lens or the Kenko, but it fortunately hasn't occurred since. All in all, the Kenko DGX 1.4x is a versatile, bargain-priced teleconverter for Sony cameras!
    Date published: 2012-03-16
    Rated 4 out of 5 by from good performance Kenko DGX converter will report correct focal length and aperture of the lens plus converter. The newer Kenko DGX converter do not have Pro 300 series in Sony mount, and that's why I got this MC4 model. Compared to my pre-DGX era Kenko Pro300 model on A850 with Tokina 300mm 2.8 lens, center sharpness are very similar and the newer DGX MC4 may be even a little sharper. However, my older Pro300 model shows much better results at the edge of the frame with sharper and much less greenish colour fringing in high contrast area. The difference would be gone after stop down 2 stops. Therefore, I believe this DGX MC4 converter would be very good for APS-C user where the frame edge would be cropped out. For full frame user, it is still working well for static subject with smaller aperture.
    Date published: 2013-05-08
    Rated 5 out of 5 by from Works with LA-EA4 adapting APS-C to FF, optically excellent I hate teleconverters. So, why have I bought 4 of them in the past month? Because a FF (full frame) teleconverter of 1.5X magnification basically converts an APS-C lens to cover FF. This converter is really a little less than 1.4X, but it produces very good image quality and most APS-C lenses cover a little more than the APS-C frame, so it is pretty effective in converting APS-C lenses to cover FF. The other converters I tried included one of the older 1.5X Kenko converters -- but that was optically much poorer and, oddly, was actually the exact same magnification as this 1.4X. In fact, of the four converters, this was easily the highest IQ with an old Rokunar 1.4X coming in second. The other issue with teleconverters is how they report the properties of the lens in front of them. They should adjust the focal length and aperture reported. This A-mount converter has 8 pins and correctly reports the adjusted lens properties -- and works on an LA-EA4! Sony says teleconverters will not work on the LA-EA A-to-E mount adapters, so this was a pleasant surprise. Another converter I have that also reports correctly indeed does not work with the LA-EA4 to the level that the camera body sees no lens attached; yet another teleconverter which reports incorrectly works, but with the wrong focal length the sensor-shift anti-shake is not as effective as it could be. Autodfocus is less reliable with any teleconverter, but this one works fairly well. In sum, this teleconverter is well worth the price if you want to use an APS-C lens on FF... which is probably not why anybody else has bought it. ;-)
    Date published: 2015-08-31
    Rated 5 out of 5 by from Well made, very good optics. All metal mounts and fits well. I have a Tokina 300mm 2.8 prime, and was looking to get maximum reach, so I purchased the Kenko 2X. Was a bit disappointed, just could not get a sharp picture with it. So I went to this 1.4X. Difference is like night and day. Very sharp pictures. I tried it on my already sharp Tam 90mm macro...wonderful! I cannot see any degradation in sharpness. There is a bit of contrast lost, but no biggie. Anything worth keeping is worth tweaking. The 2X also performs well on the Tam 90mm. In this digital world, one has to experiment to find what fits with what best. So far, this 1.4X is a bargain. For my wildlife pics, I can more than live with a 630mm lens setup that comes out very sharp indeed. Well done Kenko.
    Date published: 2017-05-17
    Rated 5 out of 5 by from A winner! Works well with A57 and Sigma 70-300mm. Reports correct aperture, and AF works in most daytime lighting conditions. Image is sharp and clear. Great price and good quality.
    Date published: 2015-05-18
    Rated 4 out of 5 by from Usable ,but not for everyone I am not here to say that this is a bad or unusable product. For some, it has worked very well according to the reviews I have read on this site. However, for me it did not work with my Sony a77 Mark II; it constantly was searching for focus. Shooting sporting events I can not have that happening. I got it and returned it the next day for a refund. Once again I am not saying this is totally unusable!! Buy it, try it and if it works, keep it. I give it 4 stars because it is well made and does work for some people.
    Date published: 2016-05-11
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