dark room contrast ratio

1. 001
   Current rev 04

   17 Aug 2015 · 15:40 UTC by BATCH 00000917

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2. 001
   superseded rev 03

   23 Jul 2015 · 11:08 UTC by BATCH 00000907

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3. 001
   superseded rev 02

   22 Jul 2015 · 14:21 UTC by BATCH 00000904

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4. 001
   superseded rev 01

   02 Oct 2014 · 16:33 UTC by BATCH 00000878

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