Canon Zoom Lenses

I see that in the negative ratings here the people simply misunderstood what these are for. They are to move your camera in CLOSER to the subject and simulate a macro lens. What they do is essentially act as a magnifying glass. And like one, you need to move it in and out till you find the appropriate distance for it to work properly. This is not a tele-converter.

I find they work quite well. I have had macro lenses in which the subject takes up the sensor, a 1:1 ratio. These however allow for the subject to assault the sensor. Instead of life size these make for race of super giant monster sized. Ultra macro can be achieved with the small expenditure of fifteen bucks.

I find there is no outstanding vignetting or aberrations. At the highest magnifications there is an extremely shallow depth of field, so be sure you are prepared to work with that if you plan on working in those types of magnification.

Overall a great product, and with macro... Read more

These are a great buy. You can't beat the price for added flexibility. They attach easily and do their job (magnifying the image) really well.

Couple of things to mention- one is that of course, once these are attached to the lens one has to use manual focus. That could be a problem for folks trying to shoot things that move quickly. Additionally, the DOF narrows significantly with the stronger magnifications. This could be a problem if you're shooting insects. Neither of these issues have to do with this manufacturer nor the vendor, but rather limitations of the product itself.

For me though, these diopters work extremely well for my purposes (artistic, abstract photography and flower macros.) I find the functionality to be excellent. My only complaint, and considering what I got for the price, it's a small complaint, is about the packaging. Personally, I would prefer a case with non-scratch surfaces, but the folding, wallet design is a good one... Read more

I use these to take picture of jewelry for an auction company and in a studio setting and they turn out wonderful. It is a little harder especially with +10 to shoot insects in nature as the DOF is so small you could focus on the grasshopper's body and the legs will be out of focus. Be sure to set a decent aperture.
It takes a lot of time to get a good picture but it is possible. No trouble with the other magnifications. (+1 +2 +4) I generally use the Canon 50mm f1.4 with this lens and it works well. perhaps a lens with a real zoom would work better. Cheap and worth it.