manigandan srinivasan Posted October 21, 2011 Share Posted October 21, 2011 Hi, i got myself Introduced to the concept "18% or Mid Gray" & to Ansel Adams "Zone System". I understood what zone system is why it was found by Ansel Adams. i also understood the use of a gray card & Meter callibrations to favour middle Gray etc. But, i have few doubts about this concept. Ill ask them in this post kindly clear my doubts :rolleyes: :) 1. How much luminace Black has & how much luminace white has & how the no 18 came ? How a middle gray (ie) Zone 5 exactly Reflects 18 % of light hits it ? 2. What is "sensitometry" & "Densitometry" (Kindly explain in simple terms) & what way will it help me to know these 2 to understand this concept better ? Note:I definetly have put efforts before posting Here so i am just making sure am not wasting any ones time for my laziness :) Quote Link to comment Share on other sites More sharing options...
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