For example, assume that an image is taken with a typical Blue glass filter. When a second image is taken with the same Blue filter AND the IRX filter, the required integration time for the same image increases by a factor of four. Use of the IRX filter eliminates the contaminating effects of the infrared light leak and preserves color accuracy. Each IRX filter is accompanied by a detailed transmittance chart. Payment is by Personal Check, Company Check, Postal or International Money Order, Visa or Master Card.
International orders are welcome.
The current price for each item is shown on the enclosed Price List. IRX Infrared Exclusion Filter supplied 1.063 in. as a 1.063 inch diameter glass blank for Filter Wheel or user-supplied filter cell. Other standard sizes and mounts are available. Prices and shipping charges are listed on an accompanying sheet. Call with questions concerning availability, delivery and quantity pricing.