58mm Filter Adapter for Canon SX20 IS Camera

Canon E-58U 58mm Snap-On Accessory Lens Cap

You can buy The Janco 58mm Filter Adapter from Amazon.com for $15 (Free Shipping). You can use Janco 58mm Filter Adapter for Canon SX20 IS, Canon SX10 IS and Canon SX1 IS Cameras. It's metal. This is the Cheapest and the best 58mm Filter Adapter you can buy for your Canon SX20 IS but only shipped with USA.

Center pinch 58mm snap-on lens cap

pinch 58mm snap-on lens cap is cheaper than Canon 58mm Snap-on lens cap. But it has a keeper fixed to it. This 58mm snap-on lens cap with keeper can be bought from Amazon around 11 USD.

58mm White Balance Lens Cap

58mm White Balance Lens Cap is something better than usual 58mm lens caps. you can use this to do white balance. There are better ways to do white balance but the reality is this is the easiest and works well 99% of the time. Buy this just for 15 USD when original price is around 50 USD.

58mm Video Cam Lens Hood with Cap

This 58mm Lens cap which comes with hood is mainly for camcorders but since Canonsx20 have good video capabilities you can use this Lens cap too. DV lens hood with screw mount fits on any 58mm lens filter or barrel thread.