Low ISO will not help fill flash, fill flash effectiveness only affected by
ambient light, shooting distance and flash power. You need high flash power
to get long working distance, reduce ISO will reduce flash GN at the same
time.
C.H.Ling
----- Original Message -----
From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx>
I don't know why Canon did it but I see low ISO as an aid to bright sun
fill flash. It may well have reduced dynamic range but that may be a small
penalty to pay for getting the shot at all. You can maybe solve the
problem with high-speed sync flash units but that produces problems of
another sort... the flash range is pretty short because it requires a lot
of flash power to fire the flash multiple times in a short time interval.
Even so, I (grits teeth) am actually considering buying a Metz 52-AF1
digital flash for micro 4/3 cameras. It's regularly $289 (same as an
FL-600R) but it's more powerful and has a $60 rebate from Bogen/Manfrotto
if you buy by the end of January. B&H's site says by the end of December
2014 but if you download the actual rebate form you'll see it's January
2015. B&H error or big fib??
Dr. (don't say it, TTL) Flash ???
--
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