You can also find the capacitors at Digikey and Mouser
Random selection, didn't check for size...
If someone can post measurements of the size of the cavity in the camera ... the one above is 6.3mm dia, 5mm long, 2mm lead spacing.
If you can fit something larger in there then a 105C, 6.3V long-life capacitor with a higher current rating may be a better choice, but then you may have to fork over 49 cents rather than the 22 cents asked for the above. Obviously, if it fails as often as it seems to, the capacitor is overstressed/underspecified. The ones sold by Microtools don't appear to be high reliability parts, just a 1:1 replacement for what was there originally - though that may be the best one can get that will fit in the space available.