昆虫撮影のためハーフマクロの70－300㎜のレンズを使用しているが、野鳥撮影や、後半歩近づきたい被写体を撮影するために購入。　必要な時装着して撮影して以来、装着していることを忘れるほど、画像の劣化、焦点のずれが感じられないテレコンである。　購入時は必要な時使用するはずだったが、現在は、不必要な時外そうと考えている。　ISO感度を高くした時の、画像の劣化は当然あるのでそこはテクニックでカバーしましょう。

Ich nutze den Konverter am Fujifilm xf 50-140 mit großer Begeisterung. Die Bilder sind scharf. Zum Verständnis: ich bin Berufsfotograf und weiß, was scharf bedeutet. Ich war vor dem Kauf sehr skeptisch, musste meine vorgefasste Meinung, dass der Konverter die optische Qualität des genannten Objektivs DEUTLICH verschlechtert, aber als völlig haltlos revidieren. Daher klare Empfehlung!

It took a while before I took the plunge for this lovely piece of glass. I have a Nikon 80-200 f2.8 AFS which is one very lovely lens which delivers stunning sharpness but I have steadily been selling off my Nikon stuff to finance my move to Fuji. On Saturday I used this lens at a wedding and the results were stunning and as good as my Nikon with really nice BOKEH. It's a lot of money but the build and results are worth it. On the day I used this, the 16 f1.4 and the 10-24 and they covered everything. This is a keeper.

Straight out of the box, appears to be a speck of dust on inside surface of lens element. Used lens blower to no avail. Does not affect the quality or show up in photographs.

I keep asking myself the singular question: Is getting 40% more on a zoom lens worth $449?That said, I am using this with my XT-2 and the 100-400mm lens. I tested in several situations mid day on a super nice day with little clouds and beautiful lighting conditions and am delighted with the results. I did not see anything in the images that would indicate that I was using a telephoto lens. So with respect to image quality, I am super duper happy.Still though, that question. $449 = 1.4 or 40%? Knowing that the 2x is same price and Fuji says it works but seems like 9 out of 10 pro photographers say never use a 2x on a zoom. In a perfect world one would think that the 1.4 should be a bit less but on the other hand the costs to make it are probably the same as the 2x. So, knowing that I like it and did purchase it knowing the price, I think that I need to focus on the build quality. It is a little thing but I know that good glass is not cheap and Fuji makes some great glass. Factoring that into the build quality, (Like a Rolex) I do believe that I got a, "Thing" that is build well enough to be $449 product. A bit of babble there for sure...So in the end. Great quality images, extremely well build and does what it supposed to do. I do love it so going with all five stars. I know that there will be a situation where I will take that single shot from far away and will be glad it was part of my kit.