Polarizing filter - improvised?
My ride camera is a Canon A710IS p&s, which has served me well. My usual picture taking procedure is to stop the bike, put down the side stand, get the camera from the tank bag, walk a few feet or yards to a good spot, compose, and shoot (95% scenery shots).
BUT, I would like to use a polarizing filter and the A710 has no provision for accepting threaded-on filters. My questions: is there any practical way to attach a filter to this kind of camera? Could I buy a small sheet of polarizing plastic sheet and simply hold it in front of the lens? If so, who sells it?
I'm just a hobbyist so I could accept some reduction in photo quality, and I'd be able to use my left hand to hold something in front of the lens, if it comes to that. For me, part of the enjoyment of riding is to take a few impressive scenery shots for friends and family - I edit for max saturation and maybe I could enhance them further with the filter.
Improvised polarizing filter
Hand holding a polarizing filter in front of a point and shoot camera will be cumbersome, at best. But, if you want to give it a try, you might try this: set your point and shoot camera to overexpose by one and a half f-stops, then compose your shot, press the shutter release halfway down to lock the focus and exposure, then hold and rotate the polarizing filter in front of the camera lens and trip the shutter. You may have to adjust the amount of exposure adjustment to your taste.
A polarizing filter uses an extra stop and a half of light, that's why you need to set the camera to overexpose. Also, as you probably know, you have to rotate the polarizing filter to see the effect.
I have not yet tried this on my point and shoot camera, but I'll give it a shot this week.