Designed to block nearly all visible light, this I-Ray 690 Infrared Filter from Singh-Ray is well-suited for those looking to get into infrared photography. It is made of optical glass and comes equipped with sprockets that are designed specifically for mounting to the Cokin P Series filter holder. This allows you to insert the filter on the slot closest to the lens to minimize the amount of unwanted light interfering with your image.
The filter works by blocking electromagnetic radiation with a wavelength shorter than 690nm, which includes most but not all visible light. This results in near-infrared images with an interesting off-color look, while still allowing for traditional black and white IR pictures. Most importantly, this range is designed to permit digital sensors to capture infrared pictures, even those still equipped with their cut-off filters. As such, they are ideal for beginners that do not have dedicated cameras or infrared film.
- Glass filter with a dark appearance, blocks electromagnetic radiation at wavelengths up to 690nm
- Designed specifically for the Cokin P holder, comes with a sprocket frame for mounting onto the slot closest to the lens
- Helps produce images with an off-color or otherworldly effect, working in the light range near infrared
- Designed to work with digital cameras that still have their infrared cut-off filters