Archived posting to the Leica Users Group, 2009/01/23

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Subject: [Leica] black cats, metering and zone system
From: luisripoll at telefonica.net (Lluis Ripoll)
Date: Fri Jan 23 13:41:58 2009
References: <729F99DE-1234-4D52-9FBE-56E2FD3FD18F@mac.com>

Hi George,

O.K., but how can we apply to the digital the different techniques of  
the Zone System?

I'm basically thinking on the classical uses to place a part of a  
photography on a precise zone, i.e. if I place something that with  
normal measurement is Zone IX on Z VII (I underexpose 2 stops), with  
the genuine Adams Zone System you can play with developping time I can  
over develop a little and obtain more detail on high zones.

On digital I don't know how can you apply the different developping  
times, and of course we can't neither apply different developers,  
water bath etc.., etc.. as he does.

Is there a way?

Thank you for your comments

Saludos cordiales
Lluis




El 23/01/2009, a las 21:38, George Lottermoser escribi?:

> The Zone System really does hold
> the secrets of metering and exposure
> and works well with digital or film.
>
> Zone Theory:
> Meter gives you Zone V - Middle gray
> Each one stop increase in exposure = one Zone lighter
> Each one stop decrease in exposure = one Zone darker
>
> I just did the following with the M8/50 lux
> Point camera add wall with texture.
> Meter reads 1/125 sec at f:1.4 = Zone V - middle gray
>
> So:
>
> 1/4,000       Zone 0 = Black with no detail
> 1/2,000       Zone I = Black with some murky detail
> 1/1,000       Zone II = Black with some detail
> 1/500 Zone III = Dark gray with good detail
> 1/250 Zone IV = Dark gray with maximum detail
> 1/125 Zone V = Middle gray
> 1/60  Zone VI = Light gray with maximum detail
> 1/30  Zone VII = Light gray with detail
> 1/15  Zone VIII = Lightest gray with detail
> 1/8           Zone IX = White with some detail
> 1/4           Zone X = White without detail
>
> Try it - It works to place any metered value where you want it to be.
> Black cat = Zone II or III depending on your personal preference
>
> Regards,
> George Lottermoser
> george@imagist.com
> http://www.imagist.com
> http://www.imagist.com/blog
> http://www.linkedin.com/in/imagist
> Picture A Week - www.imagist.com/paw_07
>
>
>
>
>
> _______________________________________________
> Leica Users Group.
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Replies: Reply from imagist3 at mac.com (George Lottermoser) ([Leica] black cats, metering and zone system)
In reply to: Message from imagist3 at mac.com (George Lottermoser) ([Leica] black cats, metering and zone system)