response:9740
response:9740


Author Comment Last activity Moderation
cfastie "I think most small Powershots use an IR block filter that is 8.9 x 7.9 mm. That's the advertised size of the BG3 glass filter I put into an A2200 a..." | Read more » over 8 years ago
ttaylor "Chris, do you remember/know the dimensions of the A2200 hot filter? " | Read more » over 8 years ago
Roolark "@Cfastie, That post from Tom was the one I was referring to in my idea #2 but yeah, I must have misread it. Still, regarding #1, I do understand..." | Read more » almost 9 years ago
cfastie " Interesting idea. Some IR blocking filters are "hot mirrors" which are coated to reflect IR. Maybe it's possible to remove the coating (but maybe ..." | Read more » almost 9 years ago
Roolark "Couple quick thoughts on the filter/clarity issue. For starters, I just ordered an a2200 for the infra blue purposes from eBay, so I haven't had a ..." | Read more » almost 9 years ago
cfastie "The Canon A2200 (refurbished) is on sale today (November 21) for $48.99 (free shipping) with a one year warranty: http://shop.usa.canon.com/shop/e..." | Read more » about 9 years ago
cfastie "The aperture mechanism definitely varies among Powershots. By peering into the front of the lens I learned that the high end ones have an actual ir..." | Read more » about 9 years ago
timmm063 "Have you considered watching other sites for cameras that are refurbished? One I would recommend is canonpricewatch.com. It also shows prices for o..." | Read more » about 9 years ago
danbeavers "The filter should have nothing to do with the difference in quality between the center and edge of the image since it is uniform in density. Lense..." | Read more » about 9 years ago
cfastie "I was assuming that the best way to preserve image quality when removing a glass filter would be to replace it with another glass filter. Plastic, ..." | Read more » about 9 years ago
warren "Very interesting line of inquiry. I've always been a bit confused about the role of the filter material itself in focus -- my assumption has been t..." | Read more » about 9 years ago