A unique lens with a distinctly bright design, the Leica DG Vario-Summilux 10-25mm f/1.7 ASPH. from Panasonic is a 20-50mm-equivalent zoom for Micro Four Thirds mirrorless cameras. The impressively fast f/1.7 constant maximum aperture enables improved depth of field control and low-light shooting capabilities throughout the zoom range. Balancing the impressive f/1.7 performance, the optical design incorporates a series of low dispersion, aspherical, and high refractive index elements, which help to greatly reduce chromatic and spherical aberrations for improved clarity and sharpness. Complementing the optics, this lens is also characterized by its durable, weather-sealed physical design, along with a fast autofocus system, versatile focusing clutch design, and a stepless, de-clicked aperture ring to suit video applications.

Micro Four Thirds System    20-50mm (35mm Equivalent)    Aperture Range: f/1.7 to f/16    Three Aspherical Elements    One UHR Element, Four ED Elements    Internal Focus, Focus Clutch Mechanism    Stepless, De-Clicked Aperture Ring    Splash, Dust, and Freezeproof Design    Rounded 9-Blade Diaphragm    77mm UV Filter

Wide-to-normal zoom is designed for Micro Four Thirds mirrorless cameras and offers a 20-50mm equivalent focal length range.

Impressively bright f/1,7 constant maximum aperture excels in low-light conditions throughout the zoom range and also offers improved depth of field control.

Three aspherical elements, four extra-low dispersion elements, and one ultra high-refractive index element all combine to suppress color fringing, chromatic aberrations, and spherical aberrations for high clarity, sharpness, and color accuracy.

Fast 240 fps autofocus drive, along with an internal focusing system, delivers smooth, accurate, and quiet focusing performance to benefit both stills and video applications. Additionally, a focus clutch mechanism delivers especially quick AF/MF switching.

Physical aperture ring has a stepless, de-clicked design for smooth, silent aperture switching to benefit video applications.

Splash, dust, and freezeproof design benefits working in inclement weather conditions.

Rounded nine-blade diaphragm contributes to a smooth and pleasing bokeh quality.

Related Questions and Answers

Q: 1. Will this have Dual I.S. capability?

A: Dual IS capability is only offered with specific Panasonic bodies like the GH5 and a lens with stabilization built into it such as the Panasonic Lumix G X Vario 12-35mm f/2.8 II ASPH. POWER O.I.S. Lens. Being that the Panasonic Leica DG Vario-Summilux 10-25mm f/1.7 ASPH. Lens lacks stabilization, the only stabilization you could get would be from the camera body your using.

Q: 2. Is there any experience for using this lens with BMPC4K?

A: This lens will work very well with the Pocket Cinema Camera 4K.

Q: 3. Does this lens require a camera with an active MFT mount to use with or can I use it with a passive MFT mount like the one on BMCC?

A: Yes. The following lens can be used with any micro four thirds system on the market.

Q: 4. Does the weather sealing work with olympus om-1?

A: Yes the Panasonic 10-25mm is weather sealed so when used with a weather sealed camera such as the OM1, it will remain weather sealed.

Q: 5. Can this PRBS be used on a DH-5s?

A: Thank you for reaching out! If you are referring to our Lumix G series, kindly be informed that the lens is compatible with the DC-GH5 camera.

Q: 6. Can it be used with Olympus OMD EM1 Miii?

A: Yes, the following lens would be a great pair to a Panasonic 25-50 mm lens.

Q: 7. Does it work with Olympus computational functions like starry sky, focus stacking, etc?

A: Yes, the following system will work with Olympus on board system and all features that is offers.

Q: 8. If I use this with the ZCAM, is it only the aperture ring that is disabled?

A: That is correct.

Q: 9. Is the aputure dial clickless?

A: The Panasonic Leica DG Vario-Summilux 25-50mm f/1.7 ASPH. Lens' aperture ring is stepless.

Q: 10. Is the a parfocal lens?

A: No, i'm sorry but this is not a par-focal lens.