Archived posting to the Leica Users Group, 2014/08/20
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]4 lux is EV 0.5 @100asa http://www.intl-lighttech.com/support/calculators/exposure-value-to-lux-converter john ________________________________________ My incident lightmeter can read lux, I think 4 is rather dark and ~50 is standard living room..... john ________________________________________ From: Bob Adler [rgacpa at gmail.com] Can you tell me more about 4 lux? How to measure lux? I can put in a dimmer for critical times during the workflow... Thank you again Mrs. Wizard! Sent from my iPad > On Aug 20, 2014, at 6:05 PM, Tina Manley <tmanley at gmail.com> wrote: > > Bob - > > Yes, that all seems right. > > http://www.rpimaging.com/store/manufacturers/gti/munsell-neutral-gray-paint.html > > ;-) > > Tina > > >> On Wed, Aug 20, 2014 at 8:46 PM, Bob Adler <rgacpa at gmail.com> wrote: >> >> Thanks Tina. Seems that the PDF is recommending: >> Black wall behind you as you sit at the computer. >> Flat Titanium dioxide white on the ceiling with diffuse light pointing up >> to the ceiling as the primary light source. >> Munsell 8 grey (whatever the heck that is) for all the walls, flat paint. >> Wear a ninja suit. >> Low (4 lux) light. How do you measure that?? >> Blackout curtains... >> >> Does that seem a correct interpretation? Any idea where to get a source >> for Munsell 8 to match the paint to? Isn't 4 Lux almost candle light dark? >> >> Thanks for the article and help! >> >> Does that seem correct? >> >> Sent from my iPad >> >>> On Aug 20, 2014, at 3:26 PM, Tina Manley <tmanley at gmail.com> wrote: >>> >>> Adobe has a pdf on the environment for the digital darkroom: >>> >>> http://www.adobe.com/digitalimag/pdfs/calibrating_digital_darkroom.pdf >>> >>> He advises gray for the walls but a Munsell 8 gray >>> >>> >>>> On Wed, Aug 20, 2014 at 4:55 PM, Bob Adler <rgacpa at gmail.com> wrote: >>>> >>>> I am setting up one of the bedrooms in our home as my digital "dark" >> room. >>>> It will house my printer, primary Lightroom/Photoshop computer, photo >>>> paper, laminator, etc. I won't be doing any spraying, so a ventilated >> area >>>> isn't required. >>>> >>>> My primary question is what color to paint the room? I am thinking flat >>>> digital white (white white) with all bulbs being 5200k fluorescents. I >> have >>>> some direct lights already that are measured 5200k and will be used to >>>> analyze prints. >>>> >>>> Any suggestions on what color to paint the room or other advise would be >>>> appreciated. One of my concerns is keeping dust out, but that's probably >>>> cost prohibitive. >>>> >>>> Thanks in advance for your input, >>>> Bob >>>> >>>>