Archived posting to the Leica Users Group, 1999/12/23

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Subject: Re: [Leica] Incident light: A Question & More
From: "Mike Durling" <durling@widomaker.com>
Date: Thu, 23 Dec 1999 08:02:13 -0500

The advantage of the incident meter is that the sphere, at least
theoretically, can integrate the light coming from a number of different
sources.  Practically, you could do the same with a carefully positioned
grey card, but it does not represent a three-dimensional subject.

Mike D

- -----Original Message-----
From: Jonathan Borden <jborden@mediaone.net>
To: leica-users@mejac.palo-alto.ca.us <leica-users@mejac.palo-alto.ca.us>
Date: Thursday, December 23, 1999 7:44 AM
Subject: RE: [Leica] Incident light: A Question & More


>Art,
>
>The dome on an incident meter transmits 18% of the light that hits it and
>hence it reads the same as a spotmeter reading of an 18% gray card. The
>advantage is one of convenience (not having to carry and hold up a card),
>but there is no technical advantage.
>
>Jonathan Borden
>
>>
>>
>> 2 questions regarding light/light meters.....
>>
>> 1) thinking about getting an incident meter and maybe
>> a spot meter. I played with a Sekonic 508 at a camera
>> store last weekend. It is digital, incident, and spot
>> (1-5 deg.). Any comments on this meter from people
>> using it or lusting after it :)
>> Don't recall seeing it mentioned on the light meter
>> thread a couple of weeks ago. I currently use an
>> inexpensive match needle Sekonic L-188 Auto Leader.
>> Since B&H will get a liitle over $400 of my
>> hard-earned cash, I'd like to make this light meter
>> decision just once.
>>
>> 2) regarding incident readings - Is it true, even with
>> incident readings, that you still have to open up with
>> lighter objcts and close down with darker objects? So
>> the advantage then is simply more accurate readings?
>> I guess I don't see how this is any better than a spot
>> meter reading the important part of a scene, and then
>> you adjusting open/close based upon whether metered
>> part of scene is ligter or darker than 18% gray.
>>
>> Now, with reflectinve meter, I either try to meter
>> something close to 18% gray (like a gravel driveway)
>> OR I meter the scene and guess-timate up or down based
>> on lightness/darkness of the most important element of
>> the scene.
>>
>> Am I confused (that's another question) and how will
>> my technique differ with an incident meter?
>>
>> thanks, as usual.
>> .....Art (NJ)
>>
>>
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>
>