[Leica] Digital Dark Room Advice

[John McMaster]

Lux is a measurement of area light so I think only incident meters read it, don't remember by spotmeter having that...

john
________________________________________
From:  Bob Adler [rgacpa at gmail.com]


A what meter?
;-)

Thanks John. I'll have to see if my ole Pentax spot will do that.


Sent from my iPad

> On Aug 20, 2014, at 6:42 PM, John McMaster <john at mcmaster.co.nz> wrote:
>
> 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
>