RE: Autoexposure Follies?

[Theo Benson <TBenson@xxxxxxxxxxxxx>]

I tend to agree -- for the most part. For the type of shooting I do (HIE,
#87C) I have almost never moved from a fixed setting of f11 @ 1/30 or 1/15
(I like dense negatives and use Rodinal 1+50). There are, however, times
when I would like to be more precise, such as in complex shadows, or when
shooting the EIA film. That stuff's too expensive to do much bracketing!

> -----Original Message-----
> From:	Willem-Jan Markerink [SMTP:w.j.markerink@xxxxx]
> Sent:	Wednesday, July 15, 1998 2:49 PM
> To:	infrared@xxxxx
> Subject:	RE: Autoexposure Follies? 
> 
> On 14 Jul 98 at 20:16, J.Wood wrote:
> 
> > At 02:21 PM 7/14/98 -0700, you wrote:
> > 
> > >I do wish someone made an affordable IR exposure meter...
> > >
> > Theo, have you looked at the recommendation by Andrew Davidhazy (RIT).
> He
> > suggests covering your hand held meter's cell with the same material you
> > are using to filter your camera.  I don't remmember which IR site has
> it(I
> > lost my addresses several months ago in a tragic crash},  but for using
> an
> > 87c filter he suggests using a piece of the same material over the light
> > opening on a Gossen Luno Pro and exposing at EI 2400 for HIE.  I have
> tried
> > it with my inexpensive Gossen Super Pilot and it works.  Just cut a
> small
> > piece of gelatin or polyester and slip it in the front.  I use EI 3200
> > because I have been using T-Max developer.  This is intended for use
> with
> > an 87c filter mounted behind the shutter so you can use your SLR hand
> held.
> >  It should be able to work with any filter material you want.  
> 
> I believe the Gossen Sixtomat Digital is the same as the Luna Pro, 
> right? (with the Digital F / Pro F being the very latest addition to 
> the line).
> In that case I'd like to confuse things even more by claiming good 
> results with the meter set to 400 ASA....in that case it is 'spot on' 
> with my typical bracket range of 1/60s @ f5.6-f11 on a bright sunny 
> day....
> This default setting also makes a separate light meter completely 
> redundant....I have not used one with my all-mechanical Horizon 202 
> panorama camera since the very first session....8-))
> And even my EOS-1 is stuck on 1/250-1/1000 @ f2.8 when I use my 
> 200mm....
> 
> One of the few occassions you really *need* this filter-calibrated
> light meter is *under* foliage, as the relation visible/IR goes
> completely haywire....IR remains virtually unchanged, while visible
> drops several stops.
> 
> IMNSHO you should completely forget about light meters, use a fixed
> type of bracket, and develope a 7th (common) sense for the amount of
> light, visible vs IR. It saves you a *lot* of hassle in the long
> run, and therefore you can take more pictures instead of setting
> things up.
> 
> Of course, fooling around with a light meter makes you an instant-pro 
> for other people....luckily I then pull out my panorama camera, which 
> people refuse to rate as professional....it simply doesn't 
> look like an SLR, neither 35mm nor medium format....:-))
> 
> 
> -- 
> 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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