AquaTech's Zoom Gear operates in a smooth and responsive manner and is available for the Leica Super-Vario-Elmar-SL 16-35mm f/3.5-4.5 ASPH. Lens. It is made from Delrin, a strong and lightweight material, and will not lose their shape over time or with use. The zoom gear pitch is matched perfectly to the zoom control on the inside of the water housing for fast, responsive control in those critical situations when quick changes to your lenses focal length are needed.

Constructed of Delrin    Lightweight and Durable Design    Will Not Lose Shape Over Time    Matched to The Inside of the    Allows Full Zoom Control

It is designed specifically for the Leica Super-Vario-Elmar-SL 16-35mm f/3.5-4.5 ASPH. lens, however, it can support multiple lens options.

AquaTech Leica Zoom Gear is compatible with the following housing models. They include EVO, EVO III, Edge, Reflex, Elite II, Elite, Base II, Base, Compac, and Delphin.

Related Questions and Answers

Q: 1. Does the Leica Vario-Elmar-SL 100-400mm F/5-6.3 lens have built-in Optical Image Stabilization? Or is the 4 stops in-body I.S.?

A: The Leica Vario-Elmar-SL 100-400mm f/5-6.3 Lens (L-Mount) has its own motors for Optical image stabilization. It provides up to four stops of image stabilization.

Q: 2. Does it have Image Stabilization?

A: This does not have image stabilization

Q: 3. does this include the front cover ring and rounded lens cap like the Summilux 35mm Aspherical?

A: The lens hood is rectangular in shape and is produced out of metal which is similar in design as the 35mm Summilux. Both have a plastic rectangular cap that snaps over the front of the lens hood. Neither the hood nor the cap is round on either lens. Also there is no front cover ring for the filter threads included with this lens.

Q: 4. Can we use this lens on Leica SL2 s body with the M adapter and get same results ?

A: Yes, but the proper adapter will be needed Please review the following adapter Leica M-Adapter L (Silver) https://bhpho.to/3CV1AuU

Q: 5. I just purchased the 100-400 zoom lens. There's a knob on the side. Does anyone know what the knob is for?

A: Leica Vario-Elmar-SL 100-400mm f/5-6.3 Lens (L-Mount) knob on the side of the lens is for when the lens is connected to a tripod via the tripod bracket that knob allows you to rotate the lens from portrait to landscape orientation.

Q: 6. How well is this lens corrected for focus breathing? Panasonic 16-35/4 is superb. How does this Leica model compare?

A: This lens is extremely well corrected for Focus Breathing. The Leica Vario-Elmar lenses are some of their highest quality zooms and as such are held to the higher of Leica standards.

Q: 7. Does this lenses have internal focusing or does the lens extend outward going from 16mm to 35 mm?

A: Yes. The lens does have internal focusing and the barrel does not extend when zooming. This contributes to the ruggedness of the lens as there are less external moving parts.

Q: 8. I'm very interested in this lense. What comes with it? Box, lense, hood, lense bag?

A: The Leica Super-Elmar-M 21mm f/3.4 ASPH. Lens includes the following: Lens Hood Front Lens Cap Leica Rear Lens Cap for M-Mount Lenses Limited 3-Year Warranty

Q: 9. Has Leica fixed this lens hood so that it doesn't fall off at the slightest bump?

A: The Leica Lens Hood for Super-Vario-Elmar-SL 16-35mm f/3.5-4.5 ASPH. Lens does fit securely on the lens.

Q: 10. Can you use this lens with Lumix S5 Mark ii's Phase Detect Autofocus? Will it benefit?

A: Yes Leica Vario-Elmar-SL 100-400mm f/5-6.3 Lens (L-Mount) can use the phase detection autofocus on the Panasonic Lumix S5 II Mirrorless Camera and the lens will benefit for that higher quality autofocus system.