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Digital BW, The Print

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Re: LED lighting in art gallery - some issues

2015-07-10 by paulmwhiting@...

Paul,

I've been studying your pdf on EbVT and am finally beginning to get the hang of it. In my reading I learned there are two major color scales, CIE and Hunter. Can I assume you're working in CIE? What I read was that this protocol was more commonly used.

Noticed a small typo in the pdf - the second link's URL ends in "at page 6-7" and I had to delete that to get the link to connect. I'm sure most of your readers will have no trouble but there might be newbies who can't.

Any reason I can't go ahead and, if I can find those Canon carts locally, load my Y cart with your mix? I'm due for a new batch anyway. Care to divulge how you test for fading? I read about a procedure a while back (maybe it was yours) using a common reflector face down on the test print. The reflector had holes punched around the rim to lessen heating. I forget what bulb was used.

But wouldn't I still be faced with my LED gallery lighting issue? Crescent 2299 matches my Premier Art paper quite well... and under these LEDs, that's what shows up against my Spanish White board and Ilford MG paper. It's quite noticeable, more than 1 unit of B, if I understand the L a b language correctly.

Was pleased to see my submission way back is holding firm. Talk about newbies... I was still very green behind the ears. But I still have much to learn.

Paul

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