This Kase UV Filter Kit for Canon RF 1200mm f/8 L USMis compatible with the Canon RF 1200mm f/8L IS USM lens. The kit features a 150mm front adapter and 150mm multicoated ultraviolet filter, which is made with Schott B270 Superwhite glass. The front adapter secures to the front of the lens, and the UV filter attaches to the adapter. Select other 150mm round filters are also supported by the adapter. The kit also includes a 150mm center pinch lens cap, a mini screwdriver, and anti-static gloves.

150mm Multicoated Ultraviolet Filter    150mm Front Adapter    Center Pinch Lens Cap    Schott B270 Superwhite Glass

Related Questions and Answers

Q: 1. Do the RF extenders work with this lens?

A: Under the Features tab on Canon USA's website, Canon states that both the Extender RF1.4x and the Extender RF2x would be compatible for use with the Canon RF 600mm f/4L IS USM Lens, and you would obtain the equivalent of 840mm at f/5.6 focal length coverage with the Extender RF1.4x, or 1200mm at f/8 using the Extender RF2x.

Q: 2. Does this lens work with a Canon 7D II ?

A: No, the RF lenses will not fit the 7D Mark 2 camera. However, they make this EF lens for the 7D Mark 2: Please take a look at the following link: https://bit.ly/3vHCeRP

Q: 3. how far does barrel extend from body when zoomed or it is all zoom function confined into the barrel ?

A: The barrel extends to 1.7".

Q: 4. does this lens have auto zoom?

A: No, the zoom is manually operated.

Q: 5. Why would someone purchase a lense of this size??? It's a novice question but I honestly dont know why?

A: The big plus to a lens like this is the aperture. This lens can reach a really far distance and has a wide (for this focal length) aperture of f/4. A lot of people use this for sports or wildlife shooting. You're able to get the shot with enough light so you don't have turn up your ISO or sacrifice your shutter speed.

Q: 6. will this lens focus faster than the EF 600mm mark iii plus adapter?

A: Both the Canon RF 600mm f/4L IS USM Lens and the Canon EF 600mm f/4L IS III USM Lens have the same USM focus motor. Using an adapter with the EF lens will slightly slow down the focus speed.

Q: 7. if I'm doing astrophotography with this lens, and what to focus at infinity, how would I do that?

A: The Canon RF 24-105mm f/4 L IS USM Lens doesn't have a hard stop so you point to a distant subject and rotate the focus ring. Once it locks the focus, the camera will indicate that the subject is in focus. You can also point the camera to the sky and use the same technique. You can use the LCD screen and zoom in to make sure the subject is in focus. If you need any help, please initiate a video chat from this link and we will happy to guide you over a video chat: https://bhpho.to/3zlN6GX.

Q: 8. can the lens hood be Reinstalled in shooting position once this UV filter is attached?

A: The lens hood can't be reinstalled in shooting position once the Kase Filter Kit for Canon EF 800mm f/5.6L IS USM Lens is attached.

Q: 9. Most lens descriptions note if the design includes UD or aspheric glass. None is stated for this lens. Does it have none?

A: The Canon RF 24-105mm f/4 L IS USM Lens has three (3) aspherical and one (1) ultra dispersion (UD) lens elements, as well as Air Sphere and fluorine coatings.

Q: 10. can the lens hood be Reattached in shooting position once this UV filter is attached?

A: Yes, the lens hood can be reattached once you install the Kase UV filter on the lens.