Filter holders for point-and-shoot cameras

I own a Canon Powershot SX100. It's a great camera, especially with CHDK installed. It does not have the threads to mount filters, though.

I bought a cheap lens-adapter tube for 58 mm filters. It is wide enough to fit over the barrel of my camera and easy to hold in place because of its solid construction. Just pretend you are holding the lens of a SLR :)

That's all there is to it - screw the filter into the adapter and hold it in front of the lens. It works. Of course, there are always a few tweaks that will make it better. I've added some padding to the adapter so it would not scratch the lens barrel. I've also bought a couple of lens covers to protect the filters when they are not in use. Finally, I've reused a bit of the packaging the covers came in to cover the other end of the adapter and prevent dust from getting in when stored.

I now have a pair of useful and nice-looking polarizing and macro filters that I can easily carry around without fear of getting them scratched and destroyed.

Step 1 Materials and tools

Failing to find appropriate free materials that would make a perfect adapter, I had to spend quite a bit to buy some stuff that looked perfect for the job. I got:

- a 2-piece set of 58mm adapter tubes for Canon PRO1 ($7.50) and
- a couple of 58mm lens covers ($3.50).

At the time I didn't have any filters either, so I also bought
- a 3-lens set of 58mm macro lenses ($18) and
- a 58mm circular polarizer ($9).

(A quick word of warning: "Typically ships in 4 to 7 days" usually means "Takes between 4 days and 2 months to ship", so don't order items with that tag if you are the impatient type. Items marked "Typically ships in 2 to 4 days" usually do just that. Items marked "Temporarily out of stock" are probably never coming back again.)

If you already have the filters you wish to use with your point-and-shoot, then the whole project becomes a lot less expensive, of course.

For the padding between the adapter tube and the Iens barrel I used a 5g pack of sugru. You will also need small scissors to cut up the packaging of the lens cover and a few rubber bands that will be used to hold the covers in place.

I also used some packing foam for improvised covers. I bought it for about $500 and it came with a free flat-screen TV :) To be honest, it's been lying at the bottom of the closet for a couple of years now, waiting to be useful one day. You may not be willing to dish out for a new gadget, so if you don't have any foam lying around try asking at the electronics store. It's also useful as a flash difuser, so it might really be worth it to try and find some. Or use some other thin and flexible material like a piece of cloth. Maybe an old shirt. A round object such as a small bowl and a sharp hobby knife will be useful to cut a perfect circle out of whatever cover material you choose.