Re: Focus (stupid question)

[PeteScherm@xxxxxxx]

In a message dated 6/17/00 6:26:36 PM Eastern Daylight Time, 
owner-infrared-digest@xxxxx writes:

<< Also I know the Konica won't give me the white foliage like the kodak IR 
film
 will.. but what filter can I use that will bring me the closest to this
 effect? >>

Ray,

Actually, you can get a fine Wood effect (white foliage) with the Konica, but 
you're probably going to need a tripod.  I shoot the 120 Konica with an 
opaque #87 filter, and meter through the filter.  As I rate the Konica at 
50ASA, the metering through the filter will drop the ASA to about 1 or so (5 
to 6 stops reduction).  Hence, the need of the tripod.  So, don't give up - 
go for it.

Regarding the red IR focus dots, I use the old chrome lenses with my Hassy, 
and they had no markings.  I called Hasselblad and they sent me graphs 
showing the amount of barrel rotation, in mm., for each of the various lenses 
- plotted against the wave length of the light you're trying to focus.  I 
started with an R72 filter and marked all the lenses with red enamel and a 
fine-point brush.  Then I went to the #87, and now have a second red mark on 
each lens.

Pete Schermerhorn, in the glorious Berkshire hills of western Massachusetts
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