Leica Lens For Canon Camera

Sandy asks…Are camera speedlights universal?I understand that lenses for dSLRs are very proprietary when it comes to companies (ie get a Canon camera and you can't use Nikkon lenses), but what about speedlights and other flashes? I'd like to start experimenting with off-camera lighting and i'd like to get a strobe that i can use for whatever dSLR i might buy in the coming years.mr.eos answers:In today's world flash units are as proprietary as lenses. This is due to what's called TTL and is

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