The Tiffen 138mm Round T1/2 IR Filter is a near-infrared to infrared control filter that is designed for digital cinematography. Many digital motion-picture cameras are designed to maximize their ability to capture red hues, and in that process near-infrared or infrared contamination may occur. If the proportion of near-infrared or infrared light that reaches the sensor of a digital cinematography camera becomes too great, the results can show unwanted color shifts, particularly in dark areas of the frame such as shadows where the appearance of black is dominant.

When the T1/2 IR Filter is used, near-infrared light waves beginning at 680nm are blocked by approximately 45%. Infrared light waves at higher frequencies are further impeded until nearly flat attenuation is achieved at 775 to 800nm. This process helps to ensure that the light that falls on the camera's sensor is limited to the visible spectrum. Potential near-infrared or infrared color shifts are prevented or minimized, which preserves color accuracy throughout the frame. While a Tiffen T1/2 IR Filter is sufficient for many cameras, others may have sensors that require a higher degree of near-infrared and infrared control, such as that provided by a Tiffen T1 IR Filter.

This filter is constructed from Water White glass for increased clarity as well as color fidelity. It is made using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass, grinding flat to a tolerance of 1/10,000th of an inch, and then mounting to precision metal rings. It measures 138mm in diameter and is suitable for use in select matte boxes and sunshades.

Infrared Control Filter    For Digital Cinematography    Blocks Near-IR to Infrared, 680 to 800nm    1.41x Filter Factor, 0.5 Stop    Prevents Near-IR and IR Light Pollution    Maintains Appearance of Dark Areas    Helps Preserve Color Accuracy    Water White Glass Construction    ColorCore Technology

• Designed for use with CCD or CMOS sensors to filter out near-infrared and infrared light pollution that cause color shifts frequently associated with high-definition recording
• Blocks near-infrared light waves beginning at 680nm by approximately 45% until nearly flat infrared attenuation is achieved at 775 to 800nm
• Constructed from Water White glass for increased optical clarity
• No dichroic coatings to further ensure color accuracy
• 1.41x filter factor reduces exposure by 0.5 stops
• Measures 138mm in diameter and is suited for use with select matte boxes and sunshades

  Related Questions and Answers

  Q: 1. Does this fit on the Fujifulm X-T30?

  A: Unfortunately this grip is not compatible with the Fuji XT30.

  Q: 2. Is the battery built into this unit? If so, how long does it last for?

  A: This is a 4th Axis specifically for Pilotlfy gimbals like the H2-45. It will work with the battery power from the gimbal it is used with. It does not have its own battery source.https://bhpho.to/2vjEHRF

  Q: 3. I have the graphite Fuji XT-1. Is there a grip out there that matches mine?

  A: .vello BG F1is a very good alternative for fuji XT 1 graphite silver edition also I m using it works perfectly fine thank you BH photo

  Q: 4. WILL THIS ALSO FIT THE NEW Fujifilm X-T2 ?

  A: I asked Fujifilm (the technical department). They told me that each model is specific in terms of the functioning of the battery grips.

  Q: 5. Will this allow access to the Flash Control Menu on Nikon D500?

  A: All the flash control will be done from the commander only.

  Q: 6. What focal length would it be on the BMPCC 4k?

  A: The Mitakon Zhongyi 17mm T1 Speedmaster Cine Lens (MFT) will be 17mm on the Blackmagic Design Pocket Cinema Camera 4K. If curious about the crop factor compared to a full-frame sensor, it will be 30mm.

  Q: 7. Can the battery be replaced by the user?

  A: Yes, the battery is user replaceable.

  Q: 8. What Material is the grip made from and is it weatherproof?

  A: The model is a polycarbonate plastic. Unfortunately it is not weatherproof. My sincere apologies.

  Q: 9. hi will this gripp fit fujifilm xt20?

  A: Unfortunately this grip is not compatible with the XT20.

  Q: 10. Does this card support jumbo frame? If it does, what is the max frame rate?

  A: This model does support jumbo frame, however the manufacturer has not specified the max frame rate, which would also depend highly on resolution.