*Please note that this is a special order item and will take approximately 8-10 weeks for delivery. All special order items are non-refundable.
The Heliopan IR BG (38) Filter cuts UV below 300nm and infrared above 800nm. It is designed for use with black and white and color films that are sensitive to certain values of infrared and UV light not visible to the human eye. Using traditional contrast filters such as a yellow 12, red 25 or green 15 will produce a color shift which may not be desired in the final image. Greens may become blue, red becomes green and yellow becomes blue/green and infrared becomes red.
- Rugged Black Brass Filter Ring
- High Quality Schott Glass