----- Original Message ----- 
From: "Perry Pellechia"
Subject: Re: K10D and Ring flash


> My wife is an avid shell collector and I often photograph what she
> finds for record keeping and to help her identify the species.  The
> size varies a lot, so the camera to object distance changes often
> during a shoot.  Every time there is a change in position, the
> exposure has to be re-determined using manual corrections (trial and
> error).  With TTL metering the exposure compensation does not change
> unless the camera to object distance changes a lot (more than a foot).
>  The situtation with running full manual with digital is not
> impossible, but it is a pita to have to make so many changes to the
> exposure settings.

It may be possible to shoot from a few set distances if you can live
with some cropping from time to time.
If you can manage that, then perhaps stringing the subject distance
could be done.
A four foot string with a knot tied every stop of distance, for example,
might speed things up for you.
With really close stuff, I suspect trial and error is the best you are 
going to get, though you will get more accurate sooner with practice.

William Robb



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