Product Reviews

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

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.

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

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

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

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.