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This is a great little lens for creative landscape photography, and it's hard to beat that price. Unfortunately, I bought mine to use for astrophotography, and could never quite get the sharpness I was looking for, even after stepping down a few stops. I really liked this lens, but returned it for a refund. I'd still recommend it for any shooters wanting an extreme wide angle budget lens.

The f/3.0 takes stunning photos in low light situations like sunrise/sunset, foothills inside closed valley. There is a decent range of angle to make the photo look straight through this fisheye to take portraits with wide scenery. It takes fair amount of learning curve on how to fully utilize this lens, but believe me once you figure it out you won't be disappointed at all. The photos can be turned into 180 degree pan views by flattening in any editing software, I mainly use GIMP on linux. the 8mm helps to get sharp images with minimal distortion.
glad that I bought this lens before my roadtrip. check out the unedited sample images.

Manual focus and aperture, but they all seem to work well. (its not as difficult as I thought it would be) I had questions and the dealer called me at home personally to help with any questions I had. This is a very fisheye lens, and works the way I thought it would, but allows for idiots like me to make it work well somehow with every shot.(excluding the one I under exposed) he gave me an exercise to focus on live view at 2 ft away, then on to infinity and check them out on download. Surprisingly, the DOF is SO VAST, that it focused well on all of them. This lens is going to be fun with creating artistic shots, and landscapes that are so beautiful that you have to get it all in one picture to get the effect. The amt of (for lack of a better word) fisheye effect is going to be fun and creative, what else can I say. It comes with a nice fitted case. I will try to add some photos later when I have more time. For the price, the manual isn't that big of a deal, esp with digital photography, if it looks bad, erase it and do it over, right? I highly recommend this lens for a fun way to get a good quality wide angle fish eye lens at a very low price point.

I bought this lens to use on a first generation Canon 7D. It's all manual, so I put the camera dial on M and adjust ISO where needed for lighting. Then I fiddle with the f-stop and shutter speed to get the exposure and depth of field desired. I find it helpful to put the metering in "spot" mode to get an exposure for the most important part of the image, then adjust f-stop or shutter speed up or down a bit to make sure that other interesting bits of the image are usable. I always under-expose a bit when in doubt since that's easy to correct in post, but blown out highlights are never recoverable.

Since the field of view is so wide, using exposure metering modes than the "spot" can result in a less than optimal exposure if something off center flaunts itself when using the other metering methods. Play with it and figure out which metering method works best for your kind of shots. For what I do, the spot metering works best for most shots. I purchased the lens mainly for night sky shots, so I went out to test it at night on the day I received it. The included images where shot in RAW and adjusted in Photoshop.

Since the field of view is so wide, it is difficult to focus through the viewfinder. Everything is so small that unless your subject is just a couple feet in front of the lens, focusing through the viewfinder for general wide shots isn't really practical. I won't be doing much close up with this lens, so the focus assist and live mode combo works well for me. By putting the camera in Live Mode so you can see the image on the screen instead of the viewfinder, and then using the focus assist button to magnify the screen 10X, focusing is relatively easy to do. Not quick, but easy to accomplish.

For the price, it's a great lens and will do what I want to it to do.

For the price, you can't get a better fisheye lens. Although not built for an EF mount on Canon full frame lenses (major vignetting), it's performance on an EF-S Canon mount is second to none. The pictures you take are clear, the visuals are great, and the price is unbeatable. I wanted to test the versatility of the lens, so I took it with me to the Cubs game in Milwaukee, seeing how much of the stadium I could capture, both inside and out, and I was not disappointed. I will take the lens to Wrigley Field next week as well. Shots are below. If you get the chance to buy a fisheye lens at a reasonable price, look no further than Altura. Although they are not a brand name or a popular third party, their quality speaks for itself.

Amazing lens with fantastic clarity. Honest broker though we get used to using some sort of auto focus and when we revert back to manually lenses it can take a minute to retrain your eye muscle. Please don't miss understand that as a negitive more of a reminder.

Great lens and fits really really tight on my d750 FX. I just adjust my settings down to dx crop and I am ready to go. I normally only shoot in M mode so easy day. This is o ly this first afternoon with it and I snagged a out 2oo shots. I was worried about the price but not any more. So I have to go take more pictures now. 100% Very satisfied customer.

Ya its a good deal but this lens only work on crop body,s...... Great lens ...... Favb

Value for money