Tiffen 72mm 29 Dark Red Optical Glass Filter

The Tiffen #29 Dark Red Filter is designed to build contrast and separate tones in black and white photography.

Key features:
* **Material:** High-quality optical glass (ColorCore technology)
* **Diameter:** 72mm
* **Color:** Dark Red
* **Use Cases:**
* Enhances contrast in black and white images, especially for landscape photography (darkens clear skies).
* Absorbs blue colors and enhances red, making it useful in forensic photography for finding evidence.
* Enhances infrared images, making foliage appear white.
* Ideal for copying blueprints by enhancing lines for easier viewing.
* **Filter Factor:** 16.5 (requires increasing exposure by 4 1/3 stops).
* **Construction:** Filter material laminated between two pieces of optical glass, ground and polished, then mounted to a metal ring for lens attachment.