automatic or manual external exposition for flash

Started Jan 5, 2009 | Discussions thread
Shop cameras & lenses ▾
ForumParentFirstPrevious
Flat view
SEBOUNET Regular Member • Posts: 355
automatic or manual external exposition for flash

With the 50D, you could use this feature with 580 or 430 exII, you can make an exposition , using a grey card.

What is purpose of this, because if it does like a white balance it doesn't seem to be stock somewhere ?

What this advantage of External exposition ?

 SEBOUNET's gear list:SEBOUNET's gear list
Canon EOS Rebel T4i Canon EOS 6D Canon EF-S 10-22mm f/3.5-4.5 USM Canon EF-S 18-200mm f/3.5-5.6 IS Canon EF 17-40mm f/4.0L USM +10 more
ForumParentFirstPrevious
Flat view
ForumParentFirstPrevious
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow