Originally Posted by Steve Scherrer
In the Q&A section of that projector central entry, they were pretty opposed to using light grays to deepen blacks. They claimed it would create a "ridiculously dull image".
I've been playing around with grays lately and I wonder if they said that because they actually tested it and saw that first hand or are just assuming... I have also seen the mods over there recommend bedsheets and that really blew my mind when I saw that post.
As far as being paper, I would imagine it's pretty flat with very little to no surface sheen, so I would say gain wise it will definitely be less than one and without any type of coating it could make for a duller looking image, but I would like to test it first. Now you guys have me adding something else to my list of things to buy!! Damn you all
If nothing else this would make a very nice and quick disposable test screen. My test screen was made with liner paper, which is used to cover rough plaster walls, cinderblocks, or paneling before painting or putting wall paper up. I don't know if this stuff is the same thickness, but I got the liner paper by the roll of 26" wide by approximately 30' for around $8. The liner paper curls pretty bad so I would check the photo paper out (or ask someone that bought some) if it lays flat or curls. The liner paper was fairly think but still curled like an SOB until it had adhesive brushed on, and then it layed flat.
This looks really interesting because of the width. The neutral gray may be a little too dark for most people. If it is the same as the Kodak neutral gray (it is 18% reflectance too) it is a middle gray in shade.
Here are a few things to note about photo backdrop paper:"Many photographers have gray backdrop paper rolls or sheets in their studios and use them for gray references. In addition to backdrop papers, other available paper products include matboards, construction paper, art papers, mounting boards, etc. This can be a poor choice since many papers use dyes similar to fabric dyes and are, therefore, subject to the same problems as fabrics. Measurements of the spectral uniformity show a wide variance. Some gray paperss are almost flat spectrally, others extremely irregular. At this moment, use of gray papers can only be recommended on a case-by-case basis depending on spectral measurement of the paper."
The above was an excerpt from Robin Meyers Imaging about Gray Card Selection
. This article is mainly about backdrop paper as used for a gray reference for photography. Since we are also concerned about the neutrality of screen colors, especially grays (particularly the middle to darker grays) I think the article applies to us too as far as color balance.