If your monitor is calibrated, I'm sure there is some way to have it
display an 18% grey. If it's a laptop, you can always have one with you.
On the other hand, you could buy one for a few bucks. I bet on eBay
you could find a Kodak Pocket Reference book (used). The include an
18% grey card and a color swatch card.
On Dec 22, 2008, at 16:03 , JC OConnell wrote:
I just got a macro lens today and want to do some
exposure testing with the istDS flash. I need a
gray card but dont have one.
anybody know of a common household item that
emulates 18% gray or an easy way to make one
with the pc? I have an accurate incident/reflectance
meter so I guess I could just do a bunch of gray
shade printouts till i find the right shade but
that sounds like too much work.
jco
Joseph McAllister
Lots of gear, not much time
gallery.me.com/jomac
web.me.com/jomac/show.me/Blog/Blog.html
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