French translation: molette de réglage des vitesses OU bague de(s) vitesses
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GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:
molette de réglage des vitesses OU bague de(s) vitesses
English to French translations [PRO] Tech/Engineering
English term or phrase:speed rings
On a professional flash (big ones, used in studios and when filming): a reflector system which adapts to most professional studio flash packs without the need for speed rings.
Also if anyone know of a good on-line photo dict.