[rollei_list] Re: Meters and Film
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <rollei_list@xxxxxxxxxxxxx>
- Date: Tue, 1 Sep 2009 20:56:15 -0700
----- Original Message -----
From: "Carlos Manuel Freaza" <cmfreaza@xxxxxxxxxxxx>
To: <rollei_list@xxxxxxxxxxxxx>
Sent: Tuesday, September 01, 2009 6:47 PM
Subject: [rollei_list] Re: Meters and Film
My point in my previous post was that you can do those three
measurements and even more types with the Gossen Luna Pro F,
perhaps this Luna Pro F is a Norwood type lightmeter with
more accesories. My second point was that to measure
highlights or to obtain some detail for highlights could be
or couldn't be necessary, it depends about the subject and
your idea about the image.
The Luna Pro F also allows to measure the Scene Brightness
Range, f.e. if the film can accept 2 EV Under Exposure to 2
1/2 EV Over exposure, your total range is 4 1/2 EV, then you
take reflected readings for the image main area highlights
and shadows, if these readings fall within the 2 EV under
exposure and 2 1/2 over exposure range, your exposure will
be right, if the readings result in 3 EV UE and 1 EV OE
you'll lose shadows details even if the EV variance is 4.-
Carlos
The only thing the Luna-Pro and other similar meters
lack is the flat diffuser and the readings with that can be
duplicated by making reflection measurements off a card. The
extra attachment on the Norwood type is just a convenience
plus it is much more limited in making reflected light
measurements than the Luna-Pro.
I use a Luna Pro and a Sekonic meter (and some others)
these two agree exactly but the Luna-Pro works at very low
light levels. Mostly I just point the meter and use whatever
reading is shows. I also use the TTL meter in my Nikon F all
the time and it usually produces good negatives and good
Kodachromes.
--
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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