Hi Stephen,
The metering modes you describe will all work. Pick the most
convenient one. :-)
With regards to blur effect, I would be careful not to overdo it.
There should be some texture even in the highlights. The amount of
blur you get will also depend on water speed. You may want to use
shutter speeds between 1/30 and 2 seconds, depending on water speed
alone. Water speed will increase both with the height of the waterfall
and with the volume of water coming through. The quality of the blur
will also vary depending on how evenly the water flows. Cascades and
splashing in all directions are more challenging to photograph than
even, directional falls.
well, those are my experiences, at least...
Cheers,
Jostein
----- Original Message -----
From: "Stephen Moore" <[EMAIL PROTECTED]>
To: "Pentax List" <[email protected]>
Sent: Thursday, July 14, 2005 2:54 PM
Subject: Setting exposure with ND filter
O List (with apologies if it's a dumb question) --
Here's a hypothetical situation: I want to shoot
some waterfalls and other moving water using
ISO 50 transparency film, and want to slow the
shutter speed to get a nice blur on the water.
Conventional wisdom says an ND filter (assume
a 2-stop) is how this is done.
So does one meter the scene before or after the
ND is in place, i.e., adjust exposure for the
desired medium tone, put the filter in place, and
then slow the shutter by 2 stops? Or simply meter
through the filter and use the desired shutter speed
(1/4 to 1/2 sec?) as a baseline for adjustment?
Any hints or tips would be appreciated.
Thanks in advance,
Stephen Moore
