Originally posted by wlachan Just in case you didn't know, the cleaner should be applied on the lower side of the wheel. Also, contact cleaner does nothing more than flush out the dirt & grease. If the contacts were poor, you will need something like DeoxIT to improve conductivity, but that will require extensive disassembling.
You can improve conductivity whit a liquid, but when applied, put the device (camera) flat on a paper towel, in this case with the wheel down, to let the excess of liquid drip out, then spin the wheel. One would not like to 'improve conductivity' on other parts in the camera...
There is a Belgian made liquid 'KONTAKT 60' (by CRC Industries Europe N.V. at B-9240 Zele) thad does both at once, better not to apply liquids twice.
And always allow to dry before reactivating!
P.S. I wonder if it would work on a
Weather Sealed camera...