Tagged Questions
4
votes
2answers
195 views
Why is ETTL necessary?
As I understand, the required flash power for correct exposure is determined by aperture, ISO and subject distance. It shouldn't matter whether a human subject is dressed in black or white -- the ...
2
votes
2answers
302 views
How important is it that the Canon 50mm f/1.4 lens does not return distance data?
I read at the photonotes website that the Canon 50mm f/1.4 USM lens does not return distance information to the camera, to be used for E-TTL II.
How important is this, and should this be a ...
4
votes
1answer
767 views
How do I read the flash distance scale on the Canon 580EX II?
My Canon 580EX II has a distance scale running from 0.5m to 18m.
When the flash is in manual mode, a single segment of the distance scale illuminates to indicate the maximum effective range for my ...
13
votes
3answers
447 views
What was my flash power?
When I am using a Canon flash in the E-TTL mode, how can I tell which flash power the E-TTL magic chose?
For example, if I got a correct exposure in the E-TTL mode, can I easily choose the same flash ...
6
votes
1answer
231 views
Can an E-TTL II cable trigger a speedlite in Manual mode
Essentially, if you own an E-TTL II (or presumably iTTL) cable of a certain length/type, is there any reason to also own a manual PC-sync cable of a similar length/type, or can the camera be fired in ...
8
votes
2answers
388 views
Inexpensive flash with full ETTL support
I've been planning to get the Canon 430EX, but I'd love to save a little cash, so I started looking at other 3rd party flashes. I've found a few that claim to have ETTL II support, but being so much ...
