Re: Konica exposure with 29

[Peter De Smidt <pdesmidt@xxxxxxxxxxxxx>]

J.Wood wrote:
> 
> >George says EI 8; Hannu says EI 100 !!!???  No wonder IR photography is
> >confusing!!
> >
> >As I recall, the Konica's rated speed is 12.  So I can't mathematically
> >come up with these EIs, unless they rate it at 12 assuming the 3-stop
> >filter is attached, then 100 works.
> >
> >Can anybody un-confuse me??
> >
> My experience with Konica 750 is using a #25 filter and an IE of 12 on a
> hand held meter with no further filter factor (wow!).  I usually develop it
> in D-76 for 8 minutes at 68 F.
> 
And my experience supports this.  I get good results at ASA 6 using a
hand held meter and a Rollei infra-rot filter.  I develope in X-tol 1:1
for 9 minutes.  Oh yeah, this is for the 120 Konica.

Regards,
Peter De Smidt
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End of Infrared-Digest V0 #210
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