Re: Filter/Speed/Meter & DON'T meter using a Nikon Camera

["phillip geller" <filje@xxxxxxxxxxx>]

----- Original Message -----
From: "Rolland Elliott" <rolland_elliott@xxxxxxxxxxx>

Subject: Filter/Speed/Meter & DON'T meter using a Nikon Camera




>You can still meter though an infrared filter on a Nikon camera, but the
meter is not picking up lots IR light, it is picking up traces of other
wavelengths, probably in the deep red area of the spectrum. Which exact
wavelengths doesn't really matter that much. If it works for you, keep doing
it. But don't imply to people that the camera is metering IR light because
>it isn't


Oh but it is. I put an ir led remote control in front of the lens of my F1
with spd and
blocking filter and the meter needle went up and down rapidly . I put it on
a minolta
meter with a spd and a blocking filter  intact and it changed from a reading
of f 2
to f 11. I would say that this shows that it is indeed reading IR.

Just to be sure I took the remote into the dark room, left the lights off
and looked
at the led with a loupe to see if it even faintly glowed. It did not.
The only reason that I can think of for an IR blocking filter on a spd would
to
keep the reading from being inflated by late or early morning sun when the
color temp would be low  or to make the meter respond to tungsten light
sources
like it does to  5500K daylight.

phil



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