420-800mm Telephoto Lens for Canon - EF Lens for Canon DSLR, Manual Focus MF Zoom Lens for Canon EOS Rebel SL3 SL2 SL1 T8i T7i T7 T6 4000D 1500D 90D 80D 77D 70D 60D 7D 6D 5D 1D DSLR Cameras

I was wary about using a non-brand-name lens with my Canon DSLR, but this lens is great. It does not interface with the auto-focus on the camera, so it's manual-focus only, and you have to manually adjust fstop and aperture, but that's kinda the point with a DSLR anyway -- ultimate control over exposure. My only caution is that because it does not have image stabilization use a tripod and a timer to take your pictures. This is not a lens for action shots! By using the timer, you give the camera a few seconds to settle down after pressing the shutter release. (I suppose you could also use a remote shutter release, but I don't have one of those.)The price point was excellent which is what made me decide to try this lens. It comes packaged in its own protective sleeve with a place to mount the lens to your tripod which helps make it more stable.

So it's very cheap for a giant lens, and I'd say get it if you don't already have a long zoom and don't plan to pay 10x for a good one.They aren't the greatest lenses. Not super sharp and lots of color fringe. NOT BAD FOR THE PRICE, but not great.The main reason it doesn't do much for me is because the overall finished output with this low end zoom lens, matched to a good R100 body, is very similar to the quality of pictures I get with an older Panasonic bridge model. Good lens + mini sensor holds up very well against a good APS-C sensor with a bargain lens. And the bridge camera has image stabilizing and auto focus for a very convenient shooting experience.However, if you don't already have an old-but-good super zoom bridge camera sitting around, you can't just go get one for this price. So factor in all of that. It's going to be one of the cheapest lenses you buy for a mirrorless camera, and it does provide a function you can't get easily otherwise.

Great for the $$$

We tried using this lens on our Nikon and it was not working on our camera. It was telling us the lens was not attached and it was. When I took a photo it was completely white. Unfortunately I waited to use it after the return window was closed.

This is nice for the price. It connects easily. It zooms really well. It has no autofocus, but at this price I wouldn’t expect that. It’s built well and it works great.

I was looking for a longer range telephoto for my new Canon R100. Because I typically try and shoot manually, it hasn’t been a major inconvenience. Having a lens with Auto-Focus will be my next investment because if you do any type of birding or nature photography, the subject doesn’t typically stay still for long. My only negative mark for this lens so far is the zoom lock not really locking fully. Image quality is very good as you can see from the attached photos. Was well worth the money spent. Fit my Canon R100 with no issues.

It is a very good toy! Fun to play with!

Poor. Hard to focus although the lens look like they are well made. Don't recommend unless you're shooting for the moon....