What do I need to buy to use a polarizer on my Canon A70?

Thanks!

A 'LA-DC52C 52mm LENS ADAPTER' and the filter

Shop around for non canon lenses and adapters. You will save $$$
I got a sunpak set for under 75 bucks for a close up set, polar, uv, and fluorescent.

Good luck,
Shaun

Thanks, so they work just as well as the Canon models?

where did you get that? im looking for something like that

I got it locally in Fort Worth, Tx
Im sure you could call canon or search for authed canon retailers and they will tell you were you can find products for your camera.
Most of the camera supply shops will have ad on lenses for your camera that will work great for your cam.

I have not tested any of canons ad on lenses due to thier price,
So I could not give you a correct comparison.
I can tell you that I am pleased'ness with the sunpak lenses.