4x5.65 Formatt-Hitech Firecrest Hot Mirror Filter (FC 650NM Cut)
WHAT CONDITION THE CONDITION IS IN: 88-Day Confirmed Operation. Warranty Fully functional and well-maintained, this filter doesn't have a scratch on it and the soft case is in perfect condition. Scroll down to learn why this filter thinks it's remarkable.
The Firecrest 4x5.65" IR Cut Filter is the quiet perfectionist of modern cinematography. It blocks infrared light above 650nm, preserving true colour and saving digital images from the magenta mischief of high-density ND setups.
Designed for early digital cinema cameras with weak or no IR filtration such as older Blackmagic, RED, and ARRI models, it slips easily into standard matte boxes and works with unflappable precision.
Its rare-earth Firecrest coating is sandwiched between layers of Schott Superwite glass, combining clarity, durability, and optical grace in one pane.
Before sensors learned subtlety, filters like this kept colour honest, and they still do.
For cinematographers chasing older cameras, it's a quiet hero in front of the lens, precise, dependable, and just a little miraculous.
Technical Specifications
Filter Type: Hot Mirror / Infrared (IR) Cut Filter
Size: 4 x 5.65"
Filter Thickness: 0.16" / 4 mm (standard cine format)
Glass Material: Schott Superwite optical glass
Infrared Cutoff: Sharp spectral cutoff at 650nm (blocks unwanted IR wavelengths while maintaining visible red spectrum accuracy)
Coating: Multi-coated with internally sandwiched coatings to protect against scratching and environmental damage

