If you use this lens you'll need the flash attachment or you wont be able to use it in indoors or in low light. The lens bell is in the way of the built in flash. Other then that it gets you up close.

3 things you should know:
1. You need to buy the adapter to fit the lens to your camera.
2. It's bigger, heavier than you might expect. perhaps too awkward when attached to a pocket sized camera--like my A620. If you are going to be walking around taking pictures with this lens you might consider some kind of neck strap or harness. The lens/adapter is easily removed, but then what? Better have a shoulder bag or huge pockets. This lens weighs as much and takes up more room than the A620.
3. Don't expect to use the built-in flash, the lens will block it.

It helped me take some great pictures--no complaint about that!

This lens attachment is worthless for the A710 IS. As the other user stated, the non-vignetted portion of the captured image is not any larger than an image without the lens attached. That is, once the dark circle edges of the image are cropped out, the image is no larger than if the lens was never used. No gain, money spent. This is a major OOPS by Canon, and no help or compensation was offered by them. Bad service, bad product, bad marketing. Two thumbs down for CANON!

I purchased the WC-DC58N along with the adapter converter LA-DC58G. At first I was very disappointed because each of the corners were rounded off, making for a vignetted effect. Then I read the manual that came with my Canon A710 where it instructed to turn on a Converter setting on the camera using the Menu AND remove the small ring on the LA-DC58G. Now the photos look great and no black around the edges. The lens is larger than I expected but it should do a great job at taking inside shots of rooms (with no flash) which is why I purchased it.

As mentioned in previous reviews, this lens gets in the way of the viewfinder on most of the products it fits, so it is necessary to use the lcd for proper framing, and you really need to use an external flash for indoor shots. Despite this,it makes wide angle shots possible on a fixed lens camera, which is what it was designed for. Without an external flash, you will experience black spots. Edge distortion is minimal, and even with a SLR/wide angle lens combination, your going to experience a similar result. How many times have you tried to photograph a room and not been able to get much of the room in the picture? This lens definitely helps in that situation. Outdoors is where this conversion lens really shines, creating a landscape effect. Hope this info helps anyone on the fence about investing in this product.