The 112mm Clear Protective Filter for Cine-Servo 17-120mm T2.95 Lens from Canon is a simple, clear filter with a 1x filter factor and is intended to provide general protection for a Canon CN7x17 KAS S Cine-Servo 17-120mm T2.95 Lens with an Arri PL Mount or a Canon EF Mount. This optically clear filter does not affect overall image quality while helping to reduce dust, scratches, moisture, and other elements from damaging your lens.

Clear Protection Filter    Reduces Dust, Scratches, and Moisture    1x Filter Factor, +0 Stop    No Effect on Image

Clear filter offers general protection for your lens against the elements.

Related Questions and Answers

Q: 1. Will it cover 5K on a RED Dragon?

A: As all lenses designed for Super 35mm will cover the RED DRAGON at 5K, you are good to go with the CN7x17 KAS S. If you shoot RED DRAGON at 6K, then you need Full Frame lenses. At this time, there is no all-in-one, ENG type lens that can do RED DRAGON at 6K. The closest available would be something like this three lens set by Zeiss. Zeiss CZ.2 PL Mount Zoom Lens Bundle with Swappable Canon Mounts, Cases, and Test Chart.

Q: 2. How compatible is this lens with the URSA mini pro?

A: As long as it is one of the Ursa Mini models with an EF mount, then this lens is fully compatible with the camera.

Q: 3. How do I turn off the electronic range limiter that stops me from zooming all the way to 120mm?

A: We would love to assist you, however we are not quite certain about the electronic range limiter you are referring to. It will be easier for us to help you find the proper answer if you email us directly at provideo@bhphoto.com. From there we'll be able to trouble shoot the lens and help you find a solution.

Q: 4. Is the Canon 17-120 CN7x17 compatible with Canon EF 1.4x and 2x Extenders?

A: This lens is not compatible with 1.4x and 2x Extenders.

Q: 5. Can you use auto focus on this lense when using the C300 Mark III?

A: You cannot use the autofocus on the Canon CN7x17 KAS S Cine-Servo 17-120mm T2.95 (EF Mount) when using the C300 Mark III. This is a manual focus lens only.

Q: 6. Would this lens be limited on a Canon R5C in any way?

A: The Canon Cine-Servo 17-120mm T2.95-3.9 Lens (Canon RF) is made to be used on Super35mm cameras, so when it is used on the Canon EOS R5C Mirrorless Cinema Camera it must be used in the super35mm or super16mm modes to not encounter vignetting.

Q: 7. Will the record start/stop button function via the canon EF mount if the hand unit is powered by D-tap and does the Canon C100 MK2 EF mount communicate with this lens?

A: Unfortunately it will not. For that you would need a camera with a 12 Pin Control Cable, such as the Canon C700.

Q: 8. How can I use this lens on a Panasonic EVA1 camera?

A: The Canon CN7x17 KAS S Cine-Servo 17-120mm T2.95 (EF Mount) needs to be powered from the 12-pin Hirose cable when mounted to the Panasonic AU-EVA1 Compact 5.7K Super 35mm Cinema Camera. Consider using the IDX System Technology C-ZLPRO D-Tap to Hirose Cable for Canon CINE-SERVO Zoom Lenses (12.5") and the SWIT 65Wh/7.2V Panasonic VBR59 Battery with D-Tap and USB Type-C I/O together to power the battery and lens simultaneously. See the links below: https://bhpho.to/2qdi0eg https://bhpho.to/3IHX7PP

Q: 9. Can this lens be purchased without the servo zoom?

A: We're afraid not. This lens comes with the servo control standard.

Q: 10. Can this lens be used on a SONY FS7 with a metabones adapter and v-mount 14 volt system?

A: If you have an EF to E-Mount adapter such as B&H # MEMBEFEBT6 you should be able to use this lens with the FS7. You will just need to supply power to the servo zoom, the IDX System Technology C-ZLPRO D-Tap to Hirose Cable for Canon CINE-SERVO Zoom Lenses (12.5"), B&H # IDCZLPRO is the perfect cable for that. You will just need a battery with a D-Tap Accessory Port for power as well, B&H # INPSKT2. Metabones Adapter - https://bhpho.to/2nG3L1g D-Tap Power Cable - https://bhpho.to/2yJuuNC V-Mount Battery - https://bhpho.to/2DvTlaL