Urth 72mm Magnetic Infrared (R72) Filter Plus+
The Urth Magnetic Infrared (R72) Filter Plus+ is a 720nm infrared-pass filter that blocks visible light, allowing infrared wavelengths to pass while maintaining overall image clarity. It transforms foliage and skies into high-contrast tones, creating distinctive infrared imagery while preserving underlying detail and tonal separation. The magnetic mount speeds up filter changes, while the slim aluminium frame minimises vignetting, and nano-coated SCHOTT B270 glass maintains consistent image quality.
Urth Magnetic Infrared (R72) Filter Plus+ Key Features:
- 720nm infrared pass filter blocks visible light to capture infrared wavelengths
- Transforms foliage and skies for high-contrast infrared imagery
- SCHOTT B270 optical glass maintains clarity and natural colour
- 20-layer CoraNano coating reduces reflections and flare
- Captures infrared light for false-colour and monochrome image styles
- Ultra-slim 6061 aluminium frame minimises vignetting on wide-angle lenses
- Magnetic mount system for fast and secure filter changes
- Coating resists water, oil and marks during regular handling
- Available in sizes ranging from 39mm to 82mm
FAQs:
When should I use an infrared (R72) filter?
An R72 infrared filter is used to capture light beyond the visible spectrum. It’s most effective in bright conditions where infrared light is strong, such as sunny outdoor scenes. Foliage reflects infrared light and appears bright, while skies darken, creating a strong contrast. It’s typically used for creative landscape and experimental photography.
Will the frame cause vignetting on wide-angle lenses?
The frame is kept slim to minimise mechanical vignetting, even on wider lenses. In most setups, it sits low enough not to intrude into the frame. As always, performance can vary slightly depending on the lens design, but it’s well-suited to wide compositions.
Are the filters easy to keep clean in outdoor conditions?
Yes, the coatings help prevent water, fingerprints and spray from sticking to the glass. When you’re working outdoors in changeable conditions, it makes a noticeable difference as marks wipe away quickly. That means less time cleaning and fewer interruptions when adjusting your setup.
Will I need longer exposures when using an R72 infrared filter?
Yes, in most cases, exposure times will be longer because the filter blocks visible light. In bright conditions, you can still shoot handheld on some cameras, but a tripod is often needed for consistent results. Performance varies depending on the camera’s infrared sensitivity. Cameras with stronger internal IR filters may require longer exposures.
Product Specification
| Effect | Type | Infrared |
| Thread Size [mm] | 72.0 |
| Type | Lens Filter |