The black Raytec VARIO2 i4 Infrared Illuminator 940nm Blackfrom Raytec VARIO2 i4 Infrared Illuminator 940nm Blackuses PLATINUM Elite SMT LED technology to deliver power and achieve operating distances of up to 472'. It features an interchangeable lens system with Hot-spot Reduction Technology to deliver even illumination. With the optional hand-held remote control, VARIO2 makes installation and commissioning quick and easy.

• Utilizes PLATINUM Elite SMT LED technology together with Cool Running thermal management system
• Angle of illumination can be quickly adjusted by changing the VARIO holographic lens insert, to match the specific camera field of view
• Hot-Spot Reduction Technology delivers a highly diffused, elliptical beam shape and prevents overexposure of foreground objects
• LED status indicator for quick operational feedback on status and performance of the illuminator
• Programming inputs on both the VARIO remote control (not included) and on the VARIO2 illuminator can be disabled if required
• Built-in green features such as power adjust, telemetry control, and timer function enhance the potential for energy savings
• Supports power adjusting from 20 to 100%
• Built-in photocell for automatic on/off operation
• Photocell following output

Related Questions and Answers

Q: 1. Do this have a notch for identifing the emulsion side?

A: Rollei Infrared 400 Black and White Negative Film (4 x 5", 25 Sheets) does have a notch for identifying the emulsion side.

Q: 2. What is the purpose/use for the end opposite of the one with the standard 5/8" spigot?

A: It can be used for some devices that use a 3/8 stud.

Q: 3. Hi, does this film require any focus shift to account for IR instead of visible light?

A: IR film requires a focus adjustment - that is, after focusing using visible light, the focus ring is turned the distance between the white and red focus line/dot on the focus scale, because the focal point changes slightly in IR. That said, because the film is large format, it's a bit more difficult to gauge with bellows focusing.

Q: 4. Does this come with a case?

A: No case, just all together in a box.

Q: 5. What are the specific filter that one should use with this film?

A: Hello, if you want the most pronounced infrared effect with this film, I'd use the Kodak Wratten 87, however this will mean shooting a a very slow ISO speed due to the filter factor. An all around easier filter to use would be Hoya R72, which allows a bit more of the visible light spectrum reach the film.Rollei's Infrared film is sensitive up to 820nm. The Kodak-Wratten Filter would block everything below 795nm, and the Hoya R72 block all light below 720nm.Using Kodak-Wratten 87: I'd meter for ISO 16-25. Infrared light can be unpredictable, so bracketing shots would be advisable. Hoya's R72 blocks a little less light, so I'd shoot at ISO 25-50.If you meter for ISO 400, add 4-5 stops, otherwise meter at the lower ISO values. Something that helped me get more familiar with my filters was to shoot a less expensive 120 roll, and record what each shot was exposed at. That way I made almost no mistakes on the more expensive 4x5.Hope that helps, ...good luck!

Q: 6. Does it clamp strongly enough to not swing around in a slight wind with a 48x72 reflector/diffuser?

A: The unit I received certainly clamps strong enough to prevent rotation, however, at 24 Sq. ft. of surface area on this sail , I imagine that even a slight breeze would create a concern of tipping despite sand bags

Q: 7. What is the diameter of the larger rod?

A: The diameter of the larger rod is 7/8" or 2.22 cm.

Q: 8. Can the reflector be tilted at an angle?

A: Yes it pivot

Q: 9. Is the rubber wrapped around the clamp?

A: Yes.

Q: 10. Will 4x5 IR film work in a pinhole camera?

A: The Rollei Infrared 400 Black and White Negative Film (4 x 5", 25 Sheets) can be used in a pinhole camera.