Product Reviews

I was concerned whether I would get good results. It is excellent.

Useful with a number of my lenses. Works well with minimal image degradation. Best teleconverter I have ever owned.

I bought this to give the 70-200 F4 OSSII more reach in sunny conditions. I read some reviews about image quality dropping, but i could not see any on the A7Riii. Definity a great purchase and together a great upgrade from the first 70-200 F4

Brought the product from Pro-AV. Excellent service and delivery. Product works a treat too 10/10.

I haven't had much time to use it, but so far I've had mixed feelings. Some great shots, and some not so great. Need more time to use it before I can give an accurate review.

On a 7RIII with 200-600 lens it works sort of OK, best in really good light. On a 7RV with the 2-600 and ok light, works good.

Love my 1.4 tele to get the extra reach when shooting outdoor daylight sports. Lookin forward to seeing what it can do with the new 300 f2.8 when I’m fortunate enough to get one.

Attached it to my 70-200 GM2 both bought at the same time very good for wildlife.

Amazing for birding with the 100-400 and the A7RV. Found that the focus grabs quickly, and tracks well.

I bought this 1.4 teleconverter about a month ago and the magnification and light loss are what I was expecting. I use it with my 7RIII and 200-600mm zoom for birding. All three are new to me. So, I am still experimenting with camera settings.

I bought this together with the new 70-200 F4 G II lens and it is small and compact. Really easy to use and gives you that extra bit of reach. Liked the case that it came in as it offers good protection.

I don't do a lot of Wildlife Photography, but when I do the 1.4 TC provides 40% extra reach to the 100-400 GM and 200-600 G lenses. It's not cheap but it is well constructed and performs well for a TC.

Does exactly what I expected, very happy. Little impact on focus speed and image sharpness, I prefer it to the 2x converter .

The Sony 1.4 tele converter is just what I need to capture amazing closeups using my 100-400 G Master tele. It focuses fast as well.

I use this with the Sony 100-400. Very impressedwith the increased reach and image quality

Excellent bit of kit but ridiculously expensive. Does make your lens hunt a bit especially in low light but all makes have that effect on so not a problem you just have to get used to how it effects things.

The 1.4tc is fantastic bit of kit no loss in quality or focus speed

Excellent quality when extra “reach” is needed. No noticeable quality lost but minimum aperture on 600mm is f/ 9.

I have the 1.4x teleconverter on my Sony 200-600mm mounted on an A6400. A lot of my photos are longer range birds. I had read mixed reviews about pictures getting soft on the upper end. In good light, you'd need to pixel peep on a well composed photo. For closer shots, I could not pick out a photo taken with the 1.4 compared to not using one.

Will this TC it ever receive firware upgradeto accept Sigma's 100-400? As Sony has limited Sigma's ability to use the Sony e mount for lenses only, and not for TCs also, Sony should make the TC able to accept sigma lenses as well. "As you noticed, yes, we released a new TELE CONVERTER TC-1411/2011 for L-mount camera, but not for Sony E-mount camera, which must be unreasonable for you. As you may already know, we are licensed from Sony to design and produce Sony E-mount lenses, and it must be done in accordance with Sony E-mount specifications and license agreement. In the specifications and agreement, there are no statements on teleconverters. So, this is why we cannot design and produce Sony-E mount teleconverters. So, at this point, we have no concrete plan and schedule for making TELE CONVERTER TC-1411 in Sony E-mount. We are so sorry we are letting you down. If you have any questions, please do not hesitate to contact us. Again, thank you very much for being our customer. Have a great weekend!Best regards, SIGMA CORPORATION Customer Support Department "

I sent mine in for repair after years of use. I love it because I can get much closer with only losing a bit of light. Its certaininly worth it and seems to go on faste rthan changing lenses.

Have had the 1.4 Teleconverter a month now. It’s an excellent addition to my 200-400 G lens.

Really enjoy it so far. Rented it first, then bought it the next day. Especially useful for the moon, and for macro shots with the FE 100-400 F/4.5-5.6GM.

I've used the 1.4TC many times now and the results are very good. It is obviously well made/quality and the images have no noticeable loss in sharpness. Increases the f stop from my 200-600mm lens which has a constant f6.3 to a constant f9. I use this mainly for getting 'closer' to static or slow moving wildlife and am very happy with it. I'm finding that im leaving it on the long lens most of the time. There are auto focus limitations due to the reduction in f stop (on my A7R3) - so maintaining focus with all shots whilst panning birds in flight is more difficult (but by no means impossble.) Of course for static or slow moving subjects there is no problem at all and you can use manual focus (with peaking) if needed. Very pleased.

Unbelievably sharp on my copy of the 200-600 zoom. 840mm sharp as a tack and if you have good ligh you can get tack sharp handheld. But you need good light.

Gives that bit extra reach when needed. There is no loss of image quality with the 1.4 on either the 70-200 2.8 or the 200-600 G. Overpriced though as these tc’s tend to be.

Good, solidly built teleconverter. you get what you would expect from Sony, It does the job very capably.

When I used this with my Sony 100-400 I didn’t have any problems image quality is great

I bought this on the back of great reviews, but quickly noticed vignetting problems. I thought I'd have it attached to my 100 - 400 lens pretty much all the time, but in fact it will be an expensive 'last resort' piece of equipment

The Sony 1.4 teleconverter functions perfectly with good quality Sony lenses. I have used it with my 100 to 400MM GM lens and got unbelievable results. It is hand holdable for the average person, easy to use and gives you a 560 MM lens with the loss of one stop of light. The images produced are great.

I bought this for my wife because she kept wanting to borrow mine

Bought a new copy and its quite sharp. I also had a used copy before that performed excellent however that one had more corner vignetting than this one. There is still a bit of noticeable corner vignetting on this one that can be corrected with post-processing - taking one point off for tis though.

This has been a very good investment no loss of speed or quality and if you are thinking about it go for it you will not regret it

Almost perfect, but not as sharp as I was hoping. Photos can be sharpened in post.

This 1.4x Teleconverter holds superb glass which has no apparent impact on IQ. Strapping on to the 70-20 GM, it extends the length by approx 17mm / 5/8ths in. Compare that size to the opposition, I have! Although you drop to F4, this is a useable amount of light for shooting in hedgerows during overcast conditions - in concert with the light sensitivity of the A7R2, it is a pleasure to see the results.