On 15/08/2018 19:03, Chris wrote:

Hi all,

Been thinking it's about time I got one of those auto-darkening helmets.
Just a bit concerned about that initial flash that's supposed to trigger
the auto-darken feature. I can't see how it can be fast enough to
eliminate exposure to that first bright flash. Anyone used one? Comments
on their efficacy?

cheers.

Don't worry about it, even cheap ones are fine. And make life *so* much
easier for the amateur. I guess they react in about a millisecond, which
is 100 times faster than your blink reflex. Remember it is an energy,
not a brightness, thing.