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If you take a look at the guide number diagram, you get a guide number of 20m at 25ASA which corresponds to a guide number of 40m at about ISO100, at very wide angle illumination. The reflector cannot really hold a candle to a more modern flash tube reflector. An equivalent electronic flash would have significant energy to dispose of: the Metz hammerhead ...


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The basic reason you haven't found simple "plug and play" electronic bulbs that would work in a non-modified flash made for single use bulbs is that it's not really feasible. The energy for single use flash bulbs is contained in the chemicals inside the bulb, not in the small amount of current applied to them to initiate a chemical reaction that ...


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Original flash bulbs aren't all that rare -- last time I looked, they were pretty easy to find on eBay (maybe Etsy too, these days). There are several kinds, however; the bayonet style (base like an old style incandescent tail light bulb), the push-in "M" style, and the "AG" ("all glass") type with no applied metal base. I can'...


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The flash is a german make produced by Zeiss. Replacement bulbs are called RF1B Blitzlampen (translates to flash bulbs). You may have luck with that as a search string. Form time to time, the tend to show up on ebay, or a photo store sells them as vintage stuff for around 15 Euro/Dollars a pack. There is also the german manual page here: https://www....


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