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Panasonic Lumix S Pro 16-35mm F4 L-Mount zoom lens, black barrel with focus ring

Panasonic

Panasonic Lumix S Pro 16-35mm F4 L-Mount Zoom Lens S-R1635

SKU CH-BXAP-A09W2

A wide-angle zoom lens for L-mount full-frame mirrorless cameras, covering 16-35mm with a constant F4 aperture and dust, splash, and freeze resistance

  • TypeZoom Lens
  • CompatibilityCamcorder
  • Wide 16-35mm zoom covers expansive scenes
  • Constant F4 aperture maintains exposure through zoom range
  • 12 elements in 9 groups with 3 aspherical, ED and UHR glass for high MTF sharpness
  • Dust, splash and freeze resistant construction for harsh environments
  • Focus clutch enables instant AF/MF switching and suppressed focus breathing

Panasonic Lumix S Pro 16-35mm F4 L-Mount Lens

This wide-angle zoom lens covers 16-35mm at a constant F4 aperture for Lumix S Series full-frame mirrorless cameras. It uses 12 elements in 9 groups including three aspherical, one ED and one UHR lens for high MTF performance. The design suits landscape, architectural photography and videography with corner-to-corner sharpness. A 9-blade circular aperture diaphragm produces smooth bokeh while suppressing double-line bokeh and vignetting.

Check L-Mount compatibility

Verify your camera body uses the L-Mount and has a full-frame sensor to match the lens image circle. The lens is built for Lumix S Series bodies; other L-Mount cameras may work but are not confirmed by the supplier. Ensure you need a wide-angle zoom rather than a prime or telephoto focal range. The constant F4 aperture affects exposure settings across the zoom range.

Dust splash freeze resistant build handles

The rugged construction withstands harsh conditions for high mobility during extended shoots. A double-magnet linear motor drives swift silent autofocus without overheating during long sessions. Focus breathing is suppressed and micro-step aperture control enables smooth exposure changes throughout video takes. The focus clutch mechanism allows instant AF/MF switching for reliable manual control over time.

Highlights

  • Wide 16-35mm zoom covers expansive scenes
  • Constant F4 aperture maintains exposure through zoom range
  • 12 elements in 9 groups with 3 aspherical, ED and UHR glass for high MTF sharpness
  • Dust, splash and freeze resistant construction for harsh environments
  • Focus clutch enables instant AF/MF switching and suppressed focus breathing

Specifications

TypeZoom Lens
CompatibilityCamcorder
BrandPanasonic
ModelNot Available

Questions about this item

What comes with the S-R1635 lens and what must I buy separately?

The box contains the lens with front and rear caps. A compatible L-Mount camera body, filters for the lens thread and a lens hood are purchased separately.

Should I choose the 16mm or 35mm end of the zoom range for my work?

The lens is a 16-35mm zoom; you do not choose between ends. Use 16mm for expansive interiors or landscapes and zoom toward 35mm for tighter architectural details or environmental portraits.

What does the constant F4 aperture mean when I shoot video on a Lumix S body?

The aperture stays at F4 throughout the 16-35mm range, so exposure does not shift while zooming. Combined with micro-step aperture control and suppressed focus breathing, it gives smooth, consistent brightness during video takes.

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