The Heliopan 40.5mm RG 1000 Infrared Filter is designed to help capture images of how a subject reflects or transmits infrared light.

Infrared light waves occupy the space in the electromagnetic spectrum behind visible light due to their longer wavelengths. Many surfaces and materials react to, or emit infrared light waves differently than visible light waves, which provide the potential for photographs of subjects or subject properties that are otherwise invisible to the human eye. Such images require an infrared-sensitive medium such as infrared film or a digital photographic sensor which may be more effective when used without the infrared-blocking filters that are frequently built over them.

Conventional light sources such as the sun, photographic strobes, or incandescent lighting may be used to provide infrared illumination. However, because infrared films or digital photographic sensors can be more sensitive to the relatively higher energy and shorter-wavelength visible light those sources also emit, the effects of infrared light can be otherwise obscured. The Heliopan 40.5mm RG 1000 Infrared Filter makes it possible to capture images of how subjects are illuminated by infrared light by blocking near-infrared, visible, and ultraviolet light waves while allowing 70% of infrared light waves 1000nm or greater into the lens it is mounted onto.

Because of the degree to which the Heliopan 40.5mm RG 1000 Infrared Filter blocks the electromagnetic spectrum up to infrared light waves 1000nm or greater, proper exposure is determined by the infrared sensitivity level of the film or imaging sensor behind it. The particular intensity of infrared-emitting light sources, as well as the relative location of the camera and lens on which this filter is used, can also influence exposure.

This filter is constructed from Schott glass for increased optical clarity and features a thin brass filter ring to minimize the potential for vignetting while enhancing durability and jamming prevention.

For Infrared Images    70% of IR 1000nm or Above Can Pass    Blocks Near-IR, Visible, and UV Light    Schott Glass Construction    Multi-Coated    40.5mm Front Filter Threads    Thin, Brass Filter Ring    Plastic Case

• Designed for use with infrared film or digital camera sensors by filtering out near-infrared, visible, and ultraviolet light
• Allows 70% of infrared light waves beginning at 1000nm to pass through
• Effective for infrared films or other media sensitive to infrared wavelengths 1000nm or above
• Constructed from Schott glass for optical clarity
• Each glass surface includes four layers of anti-reflection coating to prevent internal ghosting and reflections
• Thin, brass filter ring helps to prevent vignetting, jamming, and provides additional strength
• 40.5mm front filter threads allow for use with other filters
• Plastic case for storage and transport

Related Questions and Answers

Q: 1. What type of batteries does the Bolt ring flash use?

A: The Bolt VM-1020 TTL Transceiver for VM-1000 runs on two AA batteries, and the Bolt VM-1000 TTL Macro Ring Flash runs on four AAA batteries.

Q: 2. Is this compatible with the canon sl3 when a Tamron SP 90mm f/2.8 Di Macro Autofocus Lens for Canon EOS is equipped?

A: No, since the SL3 has no center pin, it will not work.

Q: 3. why dont you include a NIKON version? or is either the cannon or sony unit, suitable for Nikon ?

A: Bolt discontinued the Nikon version. This Godox will work on Nikon if you get the Nikon transmitter separately. https://www.bhphotovideo.com/c/product/1652520-REG/godox_mf12_k2_mf12_macro_flash_2_light.html This is a Nikon transmitter. https://www.bhphotovideo.com/c/product/1468007-REG/godox_x2tn_x2_2_4_ghz_ttl.html

Q: 4. Even though this is TTL, can you also use it in Manual mode?

A: Yes you can also set it to manual mode and set the power of the flash manually.

Q: 5. Will this flash system work with a Nikon D850?

A: Yes.

Q: 6. Anyone tried High Speed Sync with this flash? Does it do 1/8000th sync?

A: Yes, the Bolt macro flash does offer 1/8000 sync compatibility.

Q: 7. is the mount on these macro flashs same mount as nikon R200? i have a custom bracket wondering if they will secure onto it

A: They are slightly different from the Nikon R200 flashes.

Q: 8. Does it work with Canon EOS R and Canon RF 85mm f/2 Macro?

A: Yes, this flash is compatible with the EOS R and RF lenses.

Q: 9. What types of batteries does this setup use?

A: The Bolt VM-1020 TTL Transceiver for VM-1000 runs on two AA batteries, and the Bolt VM-1000 TTL Macro Ring Flash runs on four AAA batteries.

Q: 10. Will the adapter rings work with Sony's 50mm macro lens, or is there a danger that the adapter ring will harm this lens when the lens retracts upon powering off the camera?

A: Hi--this is fully compatible with the Sony 50mm macro lens.