DigitalJorj Takacs : I was hoping someone could give me your opinion about this gray card and the company that makes it (if you have heard of Robin Myers Imaging). Here is the link to the DGC-150 Digital Gray Card that I purchased at Henry's ( http://store.rmimaging.com/digitalgraycard-150.aspx ). I am still finding it difficult to understand if this is a gimmick or if it is true. I did note it says it is not for film cameras and will not work with an external light meter. Thank you for any advice you can provide. this sounds odd to me, that it couldnt be used for film! If you want a grey cardand have access to a laser printer, in photoshop make up a swatch and fill it with a color R=127 G=127 B =127. Print it on a laser printer and it matches an 18% gray card.