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Looking for a good accurate neutral gray card that has true 18 % reflectance.
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Oct 12, 2017 19:28:12   #
burkphoto Loc: High Point, NC
 
jamesl wrote:
Is that the one that has a Black, White and Gray section all three in the one card? I had wondered about them.


Yes. We used hundreds of them in the school portrait company I used to work for, to set up our lights and cameras each morning. No meters... just targets! We could match three or four cameras’ JPEG output so the resulting images would match on schools’ yearbook panel pages.

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Oct 12, 2017 19:33:31   #
jamesl Loc: Pennsylvania
 
coullone wrote:
I use the Kodak 18% grey card, they are made from an acid free material and will not change colour over time. They should still be stored in their original packing as any dye or pigment will fade over time - just look at Egyptian pantings in the Vally of the Kings!


Several people have mentioned the Kodak 18% gray cards and I had several years ago but have no idea what happened I will check into them and see about getting one of them (or several). I actually didn't look for them because I thought Kodak went went out of business and figured they probably weren't being made any longer. There is a good chance they would be exactly what I was wanting. Thanks.

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Oct 12, 2017 19:36:33   #
jamesl Loc: Pennsylvania
 
amfoto1 wrote:
I use Lastolite EZ Balance targets... 18% neutral gray on one side, pure white on the other. Can be used both for exposure and for custom white balance.

Rather than rigid cardboard, they're a type of fabric on a springy metal frame, that allows them to quickly fold up to about 1/3 their size for easy storage. Available in a variety of sizes. https://www.bhphotovideo.com/c/search?sts=ma&ci=19421&cp=15293%2b19421&N=0&Ntt=lastolite+ezybalance

I also have a set of Warm Cards... those are smaller (about 5x7", if memory serves) and include one that's 18% gray on one side, pure white on the other.... but also have several lightly "tinted" cards to give images a slight warm or cool bias, when setting a custom white balance. https://www.vortexmediastore.com/pages/warmcards-white-balance-system
I use Lastolite EZ Balance targets... 18% neutral ... (show quote)


Someone had mentioned the Lastolite gray target to me and I have been checking on them now. They could be pretty much exactly what I was looking for. Thanks.

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Oct 12, 2017 20:16:35   #
BebuLamar
 
AndyT wrote:
How far off can a gray photo bag be?


If you give me the bag I can tell you how far off.

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Oct 12, 2017 20:21:18   #
burkphoto Loc: High Point, NC
 
jamesl wrote:
Several people have mentioned the Kodak 18% gray cards and I had several years ago but have no idea what happened I will check into them and see about getting one of them (or several). I actually didn't look for them because I thought Kodak went went out of business and figured they probably weren't being made any longer. There is a good chance they would be exactly what I was wanting. Thanks.


They are made specifically for portrait pros. They are a tad blue-green, to bias flesh tones a tinge red!

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Oct 12, 2017 21:19:33   #
BobHartung Loc: Bettendorf, IA
 
papa wrote:
...and of course, this is a great place to find one.


To whom are you responding?

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Oct 13, 2017 05:17:48   #
dpullum Loc: Tampa Florida
 
All the gadgets and lenses are fine as long as you have a willing wife to act as a Caddy... but to be a good and opportunistic photographer.... KIS ... keep it simple...
Calibrate your hand palm and use it as a gray card.. i have two never used ... a large one and a small on both from the good ol' Kodak as King days.

https://petapixel.com/2012/06/06/use-your-hand-as-a-makeshift-gray-card-for-estimating-exposure/

Print one:
https://www.diyphotography.net/diy-making-your-own-gray-cards/

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Oct 13, 2017 11:28:53   #
burkphoto Loc: High Point, NC
 
jamesl wrote:
Is that the one that has a Black, White and Gray section all three in the one card? I had wondered about them.


VIDEO explains them:

https://www.youtube.com/watch?v=ubHNCCyGqBs

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