The auto-focus is fast! Fantastic for sports photography. Can't go wrong this lens!

The views are very clear and bright. I dont believe you will find a better set anywhere near this price. Im very pleased with the performance.They are huge binoculars though and heavier than I had imagined. I almost want to say that a tripod is a must because its nearly impossible to hold them steady enough to tell what youre seeing at night. The problem with the tripod though is that while an adapter is included and is fairly bulky/sturdy looking, it is not sturdy and allows the binoculars to wobble back and forth like a spring . I will be looking for some sort of metal tripod mount which should resolve the issue. I really wish the tripod adapter would have been made out of a material that didnt allow them to spring back and forth.As Ive said - the optics are great and especially at this price, you wont find a better pair for twice the money or more than twice. Just understand they are heavier than they look which makes viewing overhead in longer sessions uncomfortable without a tripod. Also keep in mind the tripod adapter included is not sturdy and you must use force to hold them onto the tripod to try to stabilize them some whereas other pairs Ive used did not have this problem and while the others would shift around while adjusting focus, etc - they didnt bounce around like these. The mount helps but its not much help.The focus knob is easy to adjust and is easily accessible. I can see where some reviews said its easy to move the focus on accident but for me, I move across the sky and frequently adjust it anyway. I didnt notice this as a problem. You can adjust these to fit your eyes and you can adjust the focus of each eye independently so that when adjusting the main focus, both eyes can see clearly if one eye isnt exactly the same as the other.

Something I wish I'd understood when I bought this -- the camera's lens can only focus to about two feet away -- so let's say you want to talk to someone from slightly further away? You're out of luck. Within two feet, it's a great webcam with decent auto-adjustment, though it's auto-exposure is sometimes kind of wack.

A absolutely ADORE this lens. I am an amateur photographer and this was my first purchase outside the kit lens that came with my Canon. I was impressed that I could get a lens of this quality at such a reasonable price and it was available on Prime so it arrived in two days.The lens is static, which does take some getting used to. The image quality from this lens is crisp and clear. I shoot with it on very low aperture and my images all have turned out extremely sharp. The auto-focus is a little more sensitive than a regular lens, which also takes some getting used to in the beginning. Because this lens is static, the manual focus is also right near where you put your hand to hold the lens steady, so be sure to watch out for that or you might accidentally override the auto focus by slightly turning the manual focus ring.This lens has quickly become my new favorite for portraiture photography, especially with newborns.This review was posted voluntarily without promotions, coupons or discounts.

This adapter seems to be well made. I haven’t tried the auto focus because I wanted it as an adapter for a manual focus lens. For that purpose it is very good.

My problem with this extender is that while compatible with my camera and lens the auto focus does not work on a lens with a aperture smaller than 2.8. If the numbers on your lens is higher than 2.8 do not expect to have auto focus.

This is a great auto focus lens mount adapter. It seems to work flawlessly the few times that I have used it. I would recommend this product.

No IS on this lens, which is no problem as it was never advertised to have it. Auto-focus is perfect for video. I love the wide open aperture of 2. I’m rather new to photography and I like experimenting with bokeh. A great price for my first lens other than the kit lens on the M50.