Re: Spectral sensivities
Re: Spectral sensivities
- Subject: Re: Spectral sensivities
- From: Iliah Borg <email@hidden>
- Date: Wed, 16 Mar 2016 21:22:23 -0400
Dear Roger,
You can pick a light sphere for cheap than, and use the second port to mount a photodiode or spectrophotometer (i1 spectro is OK; but you can also use a Hamamatsu C12666MA or C12880MA, those are cheaper and can be mounted permanently). I use xenon flash as light source with C12880MA, to eliminate long exposures and thus avoid heat / long exposure noise problems. With tungsten source a photodiode or C12666MA is quite OK; but if a photodiode is used an additional calibration task is needed.
On Mar 16, 2016, at 8:25 PM, Roger Breton wrote:
> I have an OceanOptics USB4000 with a radiometrically calibrated tungsten light source too. Could that help?
>
> / Roger
--
Best regards,
Iliah Borg
LibRaw, LLC
www.libraw.org
www.rawdigger.com
www.fastrawviewer.com
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