A grey card is a great idea! I have 3.
1. A coat-pocket sized book called "National Geographic Photographer's Field
Guide" has a grey card in it. There's a ton of info
about typical exposures too like Christmas light on EI 400 is 1/4th second at
f/4. To shoot the flames of a fire, 1/125th at f2.8.
A different page suggests shooting bright cityscapes at 1/30th at f4 (to
start). As you'd expect there are tons of examples of
everything from the basics of composition, to super-wides, to macro. It lives
in my kit.
2. "Kodak Master Darkroom Dataguide" or the Color Dataguide.
3. Believe it or not, I made a grey card on my inkjet printer using Photoshop.
I made a new Greyscale image and built 9 patches
that in these densities: 15%, 35, 45, 55, 60, 71, 80, 91, 100. I left a
similar area blank (0%, white). I printed it on my modest
Epson EPX 785 inkjet using Black ink only. I carefully compared each patch to
known 18 0rey cards. On my printer, 71 0n
Photoshop is an 180atch on 20 pound office paper (matte).
I'm sure you can find either #1 or #2 on ebay for very little money and grey
cards don't go bad!
Lama
From: "Albert" <olympus@xxxxxxxxxxx>
> I STILL want a MF!! But MF film is fairly difficult to find on
> vacation, and so I'm wondering if 8 shots a roll will really do it for
> me or not..
>
> My understanding of the meter in my Om1n is good enough to get me great
> exposures for print film, but a bit lacking as far as slides..
>
> Hmm.. Maybe I'll carry a gray card around.. i'm willing to spend a few
> dollars for that...
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