The Rear Cap for Canon EF Lenses from Simmod protects the rear element of your lens from dust and scratches when it is not in use. This rear cap is designed to click onto your lens and not roll off.

For Canon EF Lenses    Click-On Design Stays Attached    Protects Lens Rear Element

Related Questions and Answers

Q: 1. Will this lens cap fit the D-Lux 5?

A: No, the Leica Lens Cap for 135mm f/3.4 (#11889) M-Lenses (B&H# LELC49M) is not designed to fit and will not fit the lens of the Leica D-LUX 5 Digital Camera (Black) (B&H# LEDL5B) nor that of the similar Panasonic Lumix DMC-LX5 Digital Camera (Black) (BH# PADMCLX5B).

Q: 2. Is it compatible with sigma 24mm f 1.4 dg hsm art kens for canon ef?

A: Yes, the Sigma 24mm f/1.4 DG HSM Art lens for Canon EF is compatible with the Sigma USB Dock for Canon EF-Mount Lenses

Q: 3. Will this lens cap work for the Canon RF35 mm F1.8 Macro STM lens?

A: This lens cap will not work for the Canon RF 35mm f1.8. I'll provide you with a link with the proper lens cap below. https://www.bhphotovideo.com/c/product/883410-REG/Canon_6315b001_E_52_II_Lens_Cap.html

Q: 4. is the dock the only way to update this lens?

A: Not sure which lens you are referring to but the dock is needed for several Sigma art lenses.

Q: 5. will this be able to do firmware updates of my Sigma Macro 105 mm lens?

A: Unfortunately the 105mm macro is not "Global Vision" lens so it would not be compatible with the dock.

Q: 6. Does this dock work with the Sigma 150-500mm APO lens?

A: Thank you for your interest in Sigma products. Our USB docks can only be used with our Sigma Global Vision lenses. It only works with our Art, Sport, Contemporary lenses. However it will not work with the DN lenses.

Q: 7. Will it work for a Sigma 12-24mm F4.5-5.6 II DG ASP-HSM? This lens is apparently discontinued now.

A: This dock is only for Sigma Contemporary, Art and Sports series lenses.

Q: 8. I need to buy the sigma usb dock for my sigma 18-35mm 1.8canon ef mount. But I also have a sigma 30mm 1.4 for my sony. Will the canon dock work for my sony e mount lens as well??

A: The Canon dock will only work for the Canon mount lenses.

Q: 9. Will this lens cap work on my Canon SX50 HS, 35mm equivalent zoom lens?

A: The lens cap for the SX50HS is proprietary. You may obtain one by calling Canon at 1-800-652-2666.

Q: 10. Shooting a stationary family on 1.8 or so I am getting 1 out of 6 images in focus. Will this help the focus? It is horrible praying after a photo shoot that I got one sharp image out of the pose bundle.

A: The USB dock will allow you to calibrate focus and receive firmware updates for Sigma's Global Vision lines of lenses, so you can optimize your lens' focus with this device, yes.