Re: Konica and 87

[George L Smyth <GLSmyth@xxxxxxx>]

Dwight Shackelford wrote:
> 
> I just developed my first roll of Konica in years, and using the 87
> opaque filter.  I took alternate shots with the 25 and the 87.  I
> exposed the 87 3 stops over, and the 25 two stops over.
> 
> The shots with the 87 are extremely underexposed, or blank.  Is this
> because the 87 is only letting in IR above the 750 range of the Konica?

Yes.  I would give your next roll a try by exposing a few frames with
considerably more exposure.  Although the filter has a cutoff point, the
slope is not directly vertical, so you may get something interesting. 
Also, what speed did you use with Konica?  I use the 120 version and
normally shoot it at EI8.  OTOH, my opaque filter cuts at 720nm, so the
results are not as severe.

george

- -- 
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