Adrian Lant

Since my last post on April 1st I have been in touch with Fringer and explained my problem. I had a somewhat curt reply informing me that if the lens had not been optimised by them in an update, that was all I could expect. The reason they have not produced an optimisation for this model of lens, they tell me , is because they have been unable to find one to test! As this was one of Canons most popular long lenses I am surprised to say the least. They tell me that they may possibly make the optimisation some time in the future.

Hi. I have a Fuji XT3 and Fringer Pro. I have tried using it with my Canon 300mm. f2.8 IS but the focus hunts all over the place. When it does get it right it is as sharp as I would expect using my Canon 7D II. Most of the long Canon lenses have now been added to the list of lenses having software optimisation. All the Series I and Series II IS models with the exception of the 300mm. F2.8 IS series I. I can't help wondering if they have experienced some problem with matching this lens with the Fringer mount. It is quite some while since you first raised this question. How have you faired since with finding an answer. I would be very interested to hear of your success or failure to solve this problem as I would love to be able to move away from my Canon 7D II and use the XT3 with this lens.