RE: IR metering

[Theo Benson <TBenson@xxxxxxxxxxxxx>]

I have been shooting IR for over ten years and never once metered. For the
dense prints I like, I've been shooting HIE at 1/30 @f11 in open sun, and
1/30 @1/15 in deep shade. If it's really critical, I bracket +/-1, but my
fixed values have never failed me. But I'm coming up with some tricky
industrial applications (like shooting the arcs from a 3 million volt Tesla
coil) that would probably do better if I could meter. That's what aroused my
curiousity about the usefulness/linearity of the NIkon and Pentax meters. I
should have mentioned in my first post that I will be using a #87C almost
exclusively.

As for a "dream" lens, I'm still saving up for the day when I can buy a
Nikon 300/1.4!!!

> -----Original Message-----
> From:	Willem-Jan Markerink [SMTP:w.j.markerink@xxxxx]
> Sent:	Monday, August 03, 1998 6:27 PM
> To:	infrared@xxxxx
> Subject:	Re: IR metering
> 
> On  3 Aug 98 at 14:50, Theo Benson wrote:
> 
> > Interesting comments, Willem. Since you mention shooting HIE at ASA 12,
> I'm
> > curious if you or anyone else has experimented with metering using the
> Nikon
> > N90s internal (TTL) meter, or using a Pentax spot meter?
> 
> I, and several others with me, have not used a light meter with HIE 
> for a long time. 
> Perhaps it is the bright-sunlight requirement that creates a 
> relatively small range of variation, but I have learned to stick with 
> a typical bracket of 1/60s @ f5.6-11 with my Horizon 202, or 1/250s @ 
> f2.8-5.6 with tele lenses. Both are fysical limits on their own, as 
> the next slower time on the Horizon is 1/8s (and 2-3 seconds panning 
> time of the drum), and f2.8 or f4.0 don't allow sharp infinity focus 
> (fix focus lens, and point of actual focus is beyond infinity with 
> IR!). As for tele use, the day Canon launches an EOS 200/2.8 Image 
> Stabilisation lens (gaining at least two stops handheld), I will buy 
> it the day before! 
> 
> 
> 
>  
> 
> -- 
> Bye,
> 
> Willem-Jan Markerink
> 
> 
>       The desire to understand 
> is sometimes far less intelligent than
>      the inability to understand
> 
> 
> <w.j.markerink@xxxxx>
> [note: 'a-one' & 'en-el'!]
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End of Infrared-Digest V0 #723
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