Re: Konica 750 and Wratten 87, blank frames, is this true?

[George L Smyth <GLSmyth@xxxxxxx>]

robert@xxxxxxxxxxxxxxxxxxxx wrote:
> 
> I read somewhere that using a wratten 87 with konica 750 will produce
> blank frames as The 87 Wratten filter spectral transmission curve will
> show that this filter allows little radiation to pass to which the
> Konica film is sensitive (dies out at around 800nm).
> 
> if this is the case what filter would be suitable, I figure the 89B,
> what do you think.
> 
> thanks AGAIN in advance
> 
> p.s. one day Ill get the hang of it :)

I use the Hoya R72 filter, which I "think" is similar to the 89.  The
negatives look very good.  I'm not sure you could go much further, but
then I haven't tried either.

george

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