Product Overview: The document provides details about the Photopic Filter with a part number PEF-12.5. This filter is unmounted, has a diameter of 12.5mm, and is 1.5mm thick.

Specifications: The filter is designed to match the photopic eye response, which is the human eye's sensitivity to light under well-lit conditions.

Contact Information: The manufacturer, Galvoptics, is located at Harvey Road, Burnt Mills Industrial Estate, Basildon, Essex, SS13 1ES. They can be contacted via phone at +44 (0) 1268 728077 or through their website at www.galvoptics.co.uk. Email inquiries can be sent to [email protected].

Additional Resources: More information about the product can be found on their website under the optical components section, specifically the photopic eye response filter page.