DEC RD53 Manual

I am told they turn up on E-bay fro mtime to time, probbly at excessive prices. There are collectors ofd such things, who I assume never think of actually using them (and thus ruining them for the collection). Of course Polaorid made a bulb-type flash where the bulb lasted fro more than one exposure (!). It was a normal filamnet blub -- I can't rememeber if it was 6V or 12V. it was supplied with 45V from a cpaapcitor (charged film, this was all you needed for indor shots. It's bascially magnesium powder and an oxidising agent. I do not advicse making it for obvious reasons. FWIW, when I demonstratee my calssic comptuers, poeple are welcom to take photos of them (and when they're in bits, I don't mind photos being taken of the PCBsm etc) with any equipment _apart from flashpowder. Film or digital, still or cien, whataver, is fine (It won;t damage by machine). Electornic flash or even flashbulbs are fine. But I do not want my classic comptuers covered in magnesium oxide... Yes, I am told may do not. I wonder why not, given that I use a cable relase with film cameras al lthe time. Ah... It's a pity such things are not standardised and documented. After all, there are only 2 common [1] cable release fittingd, the tapered male thread used originally on the Compur shutter and later used on just abotu every camera, and the larger female trhead used on screw mount Leicas, Nikon Fs, etc. [1] To quieten the pedants, there are mroe. Ive seen a beyonet fittong on one old leaf shutter, for example. On a digital camera, I would agree. On a film Leica, it bascially turns it into an SLR and is useful for closeup work and telephoto lenses. -tony