Summary: I never thought I would brag about a point and shoot camera, but the Canon G6 is remarkable. And, the add-on lens is equally suprising. Granted, this is not an interchangeable SLR lens, but it's great for use with all the subjects one would shoot with this camera. I am glad I chose the Canon brand lens. Note: I use the Lensmate adapter.
Summary: After getting the wide converter Canon designates for the VIXIA HF S21 and realizing how heavy it was, I was not about to get their tele converter. I got lucky and got one of these used locally, and it is a very satisfying choice. Even at the price here I would get it; the vignetting is minimal (compared to others I have tried), and the 1.75x magnification will allow you to capture things like the moon with great resolution.
Summary: The optical x6 zoom on the Canon A710 IS is already better than cameras in it s range (i.e. non SLR). However, the zoom takes the picture up to the natural size; the tele converter lens really does make a difference. Firstly, if there are any negatives, they are very minor; the lens and adapter are black - would have been nice to have been silver to match with the camera. Erm, that's it! The main quality of Canon is the lens, which they always do well.
Summary: This lens is a good way to extend the capabilities of a general purpose camera for an amature photographer. Overall all quality and color accuracy of the digital images is good. The large lens diameter blocks the view finder, forcing one to rely on LCD screen for framing. The camera sometimes gets confused during action shots taking longer than normal to auto focus - a minor inconvenience. Lens requires an adapter - a seperate piece to keep track of.
Summary: Not much that could go wrong with this - but it is well built, and attaches easily. I use this on a PowerShot A620 which only has a 4x optical zoom. This helps to get those far shots without using the digital zoom and losing image quality. The included bag is nice for keeping it dust free when not in use.
Summary: This lens is well worth the money if, like me, you bought the A710 IS in part for its 6x zoom, recording wildlife encounters is important to you, and you don't want to carry around an extra camera for such occasions. The main shortcoming of this converter is that it increases the minimum focus distance (at camera's longest zoom) to a whopping 6 ft. At this distance, the field of view is about 7.6 inches wide.
Summary: After i bought this product i saw the comments: when you use it without zoom in your camera, you see the object of pic into a circle. Also another disadvantage is that if you want to take a pic with flash, this lens blocks the light and the pic is divided: mid size is ok but the other size is black or dark.
Summary: This TC lens created huge bands of greenish halo (AKA CA) around all objects in contrast areas. Trees had green halos. Buildings had green halos. I'm not talking about a narrow line, but a broad halo. The image quality was also degraded. This does not happen with my Ricoh 1.5x or my Oly TCON17.