This 11900 Zoom Gear enables the operation of a Canon RF 24-105mm f/4 lens inside a lens port on an AQUATECH underwater housing. Consult the port chart for your camera and lens for full compatibility information.

Allows Use of Zoom Lens in Lens Port

Related Questions and Answers

Q: 1. Is this a good lens to photograph babies and toddlers both inside (low light) and outside? Or should I invest in another lens? I am not a professional.

A: The Canon RF 24-105 F/4L IS USM lens will work well to take pictures of babies and toddlers inside in low light and also outside. It is a very sharp lens with fast focusing and the zoom range gives you a lot of flexibility when framing.

Q: 2. Does this lens have an effective focal length of 28-168mm on AP{S format cameras like the new Canon R10?

A: The Canon R10 has a 1.6x crop factor so 24*1.6 = 38.4 and 105*1.6 = 168 so Canon RF 24-105mm f/4 L IS USM Lens equivalent focal length on the Canon R10 will be 38.4 - 168mm.

Q: 3. Does it lose light on the sensor when you zoom in? Like the EF 24-105mm f/4.0L when you zoom in?

A: The Canon RF 24-105mm f/4 L IS USM Lens is non variable aperture lens. It does not reduce lite as you zoom.

Q: 4. I rented this lens & had frequent sun flares. Is this a known issue with this lens, or did I have a defective one?

A: Some early Canon RF 24-105mm f/4 L IS USM Lenses produced unacceptable levels of flair under certain conditions. This issue has been resolved.

Q: 5. Is the focusing motor silent? Will a shotgun mounted mic pick up the lens focusing?

A: Hi--there are no totally silent focusing motors, but the USM is a quiet AF motor.

Q: 6. 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: 7. 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: 8. Does the IS motor shut off when it's set to the "off" position, or can you still hear it working?

A: The IS is shut off when set to off.

Q: 9. If I purchase this used, will I be able to purchase Canon CarePAK for this lens?

A: No, but a end-user can apply our all state coverage to the used canon 24-105mm lens. https://www.bhphotovideo.com/find/shared/warranty-allstate.jsp

Q: 10. Does the lens have internal focusing?

A: The RF 24-105mm f/4L IS USM Lens does offer internal focusing.