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I use this on my 70-200mm and my 100-400 for extra reach depending on situation. Works great! Be careful; and heed their warning. The extended part you see on this unit can break you camera sensor it you accidentally try to put it on backwards. Great tight fit and does the job as expected.
I’m really enjoying the extra reach this adds and I haven’t noticed a decrease in image quality. Alone it’s quite small and if you carry it around in the included padded case, it’s just about the same size as the 28mm f2.
It is one of the best additions that I have acquired for my photography work. It is a perfect match for my SEL 100-400GM OSS. The sharpness of my photos did not degrade when attached to my A7RII and having 42mp at 560mm is just great. I would highly recommend this 1.4x.
This teleconverter is perfect for that extra bit of reach on the 70-200mm GM. There really doesn't seem to be any downside to using this teleconverter like I thought there might be. The 70-200mm becomes an amazingly sharp 98-280mm f/4 lens.
Im a bit of a sharpness fanatic.Id previously tried the 2.0x TC and was very disappointed with the results. On my 70-200 GM, this one is suitably sharp at 280mm.Its still a teleconverter, and you do take a slight hit in quality, but the combo of the 1.4x and 70-200 GM performs on par with or...
This teleconverter has very little optical impact and only 1 stop loss when used with my FE 70-200 f2.8 GM lens. It does not affect focus performance or motion compensation and fits securely on both lens and camera (Sony a6300 & a6500). I pretty much just leave it attached to the lens now.
I got this extender about 3 months ago. Its an ok solution for wildlife I guess but it has some major drawbacks. The loss of 1-1.5 stops of light, (at full extension on the Sony 100-400 you get f8) causes some slower AF and loss of dynamic range.
Works wonderfully with the Sony 100-400mm lens. I didn't notice any loss in sharpness. Good combination for taking pictures of Birds.
I purchased the Sony A7RIII and the FE 109-400 GM and wanted a little more reach for wildlife and birds. The GM 100-400 lenses is super sharp and The addition of the Sony FE 1.4 extender didnt reduce the sharpness at all.
I purchased this converter to compliment my telephoto lens and it is ideal for application. I am very pleased with purchase.