I have ThorLabs catalog from Germany. 1500 pages , optic experimental gears.

There are 2 categories interested me.

First , EdgePass Filters , Second Colored Glass Filters.

Catalog writes edgepass filters are good for photometry. Do photometry means remote sensing ?

There are two subcategories for edgepass filters :
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A - Long Pass Filters
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CUT ON WAVELENGHT FOR EXAMPLE 400 nm
TRANSMISSION REGION 400 - 2200 nm
REJECTION REGION 200 - 400 nm
PRICE 70 DOLLARS

B - Shortpass Filters
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CUTOFF WAVELENGHT FOR EXAMPLE 450 nm
TRANSMISSION REGION 400 - 450 nm
REJECTION REGION 450 - 585 nm
PRICE : 70 DOLLARS

Unlike colored filters , their cut on , cut off wavelenght will shift to shorter wavelenght when the angle of incidence increased.

And there are colored glass filters , two subcategory , longpass and shortpass filters.

Now let me ask , which category helps me at archaeology , surface survey and painting analysis.

I want to take a vineyard and see the anomaly , take ground picture and see the anamoly for help to archaeologist or a painting and lots of surprises.

Any experience ?