Re: IR block filter: Need to get a spectral Analysis from 400-1200 nm

[Cor Breukel <cor@xxxxxxx>]

Roland, 

In the past I offered you assitance, the offer still stands. At the lab
we have a spectrophotometer (250 to 950 nm)

Cor

Rolland Elliott wrote:
> 
> If anyone is attending college or has access to a spectrometer, I have a
> small IR blocking filter that I removed from the Nikon N90s camera I
> would like tested.  It would be interesting to get a curve of this filter's
> spectral response. It is 1/4 the size of a penny. Someone tried testing it
> for me but it did not work out very well. Actually it worked fine but the
> graph was from 1600 nm upwards, which isn't exactly useful for IR
> photography.
> 
> Sincerely, Rolland
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