Afternoon, everyone. I've had a browse through this forum to see what others' experiences with the Rollei 35 and non-original batteries have been, and opinions seem to differ slightly - some seem to get on OK with colour neg film and the built-in lightmeter running unrecalibrated on a 1.5V alkaline 625A, others seem to have problems (I'll be using colour neg most of the time, but may use some colour slide film too). Will a zinc-air Weincell get enough air to work properly inside the battery compartment of a Rollei 35T? I have a 625A that I'll try anyway in the meantime, and I realise the Rollei's own meter isn't fantastically precise anyway, but any advice would be much appreciated. I suppose I could shell out on an adaptor, but I'm a bit confused by the various options, and I'd like to avoid hassles like the sloping discharge characteristic of the alkaline if I can. Cheers, Jon.