Summary: NOTICE TO ALL POTENTIAL BUYERS! This conversion lens adapter DOES NOT WORK WITH CANON A650! It may be a fabulous adapter for the right camera, but not for this one. The only lens adapter you need for the Canon PowerShot A650 is the LA-DC58J. It will work for both the correct Tele-converter and Wide Converter lenses for this camera, which are the following: Tele-converter TC-DC58C and Wide Converter WC-DC58B. Trust me, just read the back of your Powershot A650 manual.
Canon LA-DC58H Conversion Lens Adapter for Canon G7&G9 Digital Cameras
W. Gorski, Amazon
21 February 2009
Summary: A necessary product for Canon Tele Converter lens...the material is plastic rather than metal it works fine be careful not to "cross thread"the lens and don't tighten it to much a light snug fit will work.I never remove it... makes a fine lens hood.
Summary: Required with G9 telephoto lens. Others have commented on plastic vs metal adapters. I opted for plastic because I'd rather have the camera as the strong component vs lens in case of accident.
Summary: This has a purpose - it adapts a 2x telephoto auxilary lens to my G-9. It also has a hidden purpose... With the addition of a cokin 58mm filter adapter ring, it will mount a Canon ringlight to my G-9. I just love things that have more than one purpose, don't you? By the way, the ring light works great and is TTL with the camera. KJK.
Summary: This must be used when using any Tele or wide angle lens for the G9. Unfortunately, it is made of a flimsy plastic and not aluminum or some other metal. It does not lock to the camera tightly and there is some wobble from the connection point in addition to the flexing of the unit itself. I would gladly pay a few more dollars to buy a metal version that fits more snugly and stronger.
Summary: I frequently read reviews (when they are available) before purchasing larger items. So, let me help out those interested in the Canon LA-DC58H Conversion Lens and Adapter. I found it simple to install,easy to use and a lot of fun to use. Reviews written about how difficult it was to install obviously never looked at the camera's manuel.
Summary: With this I'm able to use several 58mm filters left over from a previous camera system. Also offers protection to lens and allows use of a lens cap. Snaps in place nicely. Your P&S now looks like a miniature DSLR. Well worth the small price.
Pros: Durable, Easy To Use, Improves Product Function, Lightweight