>> What I found more interesting is the implication that evaluative
>> metering simply bases the reading on the subject falling under
>> the chosen AF point.
> However, D30 users (who quoted Michael Quack and this List)
> observed that evaluative metering is very much like spot
> metering at the selected focus point.
Sorry, caught this thread late on.
Your remarks on ETTL are interesting as I'm having problems with flash
exposures using my D30 & 550EX. I find that the flash is overexposing
considerably when the subject (usually a person) is off centre. The problem
seems to be that even if I use an off-centre focus point to lock focus, when
I re-compose this causes the E-TTL pre-flash to read off the subjects body
(as this is now the area under the selected focus point) and if they are
wearing dark clothes I get washed out skin tones. I have got round this on
occasion by keeping the focus point aimed at the subjects face and using FEL
to lock flash exposure before re-composing the scene. This seems to work OK,
but only if you've got time.
Forgive me if I'm missing something obvious, but if it's accepted that
there is a formula for producing a correct flash exposure (e.g. ISO rating
+ subject distance = X amount of light for correct exposure) couldn't the
flash calculation simply be linked to the lens' focus distance so that
whatever you focus on is correctly exposed, rather than relying on the
amount of light coming back into the lens. This would cure another problem I
suffer with, subjects wearing bright reflective clothes. The user could then
dial in any under or over flash requirements.
I appreciate it's obviously not as simple as that, so could someone let
me know where my arguement falls down. Also, any tips on flash exposures
welcome.
Cheers,
James
p.s. You never stop learning, that's the point.
----------------
James McCauley
email: [EMAIL PROTECTED]
portfolio: http://www.jamesmccauley.com
*
****
*******
***********************************************************
* For list instructions, including unsubscribe, see:
* http://www.a1.nl/phomepag/markerink/eos_list.htm
***********************************************************
