Hi,
I red severals threads speaking about, converter, iTTL and many time it ends
up with the word "compensation".
My concern is to have a picture exposition spot on right out the box (no pp).
I have used differents setup like single or dual DS-125 with Mathias eTTL
converter on Canon system and I found it not reliable. Sometime it works and
sometime you have to struggle to found the perfect exposure compensation
and in many case it is not nearly perfect.
I have then switched to Nikon and used my Subtronic and Inon on it both in
manual. After a few dives I was able to guess the exposure and it was right
what I wanted (both in macro or wide-angle).
A few month ago due to problems with my subtronic I bought an SB800 and
a Subal housing. Try to use it in iTTL. Found the exposure not consistant and
have to go back to compensation or switch to manual.
Now I use my SB800 in manual mode (both with Inon) and found the exposure
more accurate and overall much more balanced than in automatic.
If compensation is a must (to reach accuracy) when using TTL flash for me it
meens no more 'automatic' : sound not so helpfull for me ?
Now if you have to identify the situation for which the TTL will not work then
is it far different than using manual ?
Just some thought to share with you.
Regard
Stéphane
