M5 as user

[laverda3c]

Would you be so kind to share the name of the store?

As for proper disposal, they are so small I see no need to dispose of them at all.

Sure:

Photo Experts TD Square (3rd floor) (403) 265 0609.

Hope this helps.

Cheers,

Mark -%)

 

[venchka]

Thanks for the lead. Close, but no cigar. They don't have any.

 

[Rico]

Heavy metal in the environment is nasty stuff. I store my old mercury cells in a deep pool of water with blue light coming out of it. Hey, if it's good enough for the nation's depleted uranium fuel, it's good enough for me!

 

[payasam]

Around three years back, I got hold of adapters which bring the 1.55 volts of silver oxide cells down to the 1.35 volts of mercury cells. Each is a hollowed out 625 shell with a diode soldered along the rim and insulation inside. A silver oxide cell fits snugly in it, and the whole can be used as a mercury 625. Silver oxide cells have a flat discharge curve like mercury cells. The output of alkalines, on the other hand, drops over time. I cannot now recall the name or address of the Dutch engineer (fibre optics, if I remember) who made them, but I shall dig them up if anyone wants them. I do not know, though, if he still makes them. He also sold kits for those who wished to assemble them and published instructions for those who wished to make them entirely by themselves. I got three, one for my Canon FTbN and two for my Canon EF. It turns out that two were not needed, as the circuitry of the EF can adjust to the sloping discharge of alkaline cells. I recall that they cost a good deal less than the CRIS adapters which, I believe, work in the same way.