NOTCam BK7 glass filter
|NOT filter number:||238|
|Dimensions:||25-mm round. 5.4 mm thick.|
|Marking on filter edge:|
Transmission curves: BK7,
Note:These transmission data have been scanned from the manufacturer's
hardcopy. They are probably good to a couple of %. Details of the scanning
procedure are not known, but the scan was made at ambient temperature.
The BK7 glass filter was manufactured by Custom Scientific. Purchased 2012.