Zeiss SFL - The lightweight model among high-performance binoculars.

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ZEISS SFL® 40 – The New Compact Binocular from ZEISS

ZEISS introduces new binoculars featuring maximum optical performance with a lightweight and compact design for your next nature observation adventure.

ZEISS is excited to introduce the ZEISS SFL 40, the newest member of the ZEISS SF line of binoculars. The ZEISS SFL (SmartFocus and Lightweight) provides exceptional optical performance combined with a compact and lightweight design. The new binoculars come in two models, the ZEISS SFL 8x40 and 10x40. “Our new ZEISS SFL 40 allows users to experience nature with incredible ease by combining the advantages of high-performance binoculars with the compact design of smaller binoculars,” said Léon-Roderic Kunad, Head of Category Management Nature Observation at ZEISS.

Lightweight and Compact Design

“Especially when on long trips in the great outdoors, all the equipment you need can become a burden as every ounce adds up,” Kunad explained. “That’s why our primary goal was to develop binoculars that are not only lightweight, compact and tripod adaptable, but also offer incredible image quality for memorable moments in nature observations.” Thanks to the reduced lens diameter, the use of thinner and more closely spaced lens elements, and the rugged and durable magnesium housing, the ZEISS SFL 40 is an exceptionally lightweight yet reliable companion. 

Color Fidelity and Sharpness of Detail – Thanks to New UHD Concept

The new Ultra-High-Definition (UHD) concept offers exceptional color fidelity and high image resolution  thanks to the perfect combination of optimized lens coatings and a sophisticated optical design for a truly natural and detailed nature experience. The 90% light transmission and the T* multicoating deliver an impressive image, even in twilight conditions. ZEISS’s proprietary FieldFlattener technology provides edge-to-edge clarity, with a wide field of view of up to 420 feet at 1,000 yards for the 8x40 model. Adding in a close focusing distance of 4.9 feet, the binoculars deliver an incredible combination for viewing up close as well as at a distance. “Combining high image resolution and precise detail recognition, the ZEISS SFL allows nature observers to distinguish between even the smallest features in plumage and reliably identify different species,” Kunad reports. This is complemented by the LotuTec® coating on the lenses, which guarantees a clear view even in rain and mud thanks to its beading effect. 


Simple, Intuitive Operation with Perfect Ergonomics

“When observing nature, sometimes a few seconds is the different between missing or observing a memorable moment. That’s why it’s so important that users can operate the binoculars intuitively and easily,” Kunad added. Thanks to the proven SmartFocus concept and the ideally positioned focusing wheel, users can focus quickly and precisely, even when wearing gloves. Using only 1.4 rotations to go from close focus to infinity, the SFL is the perfect combination between speed and precision. In combination with the improved eyecups and the very large exit pupil in relation to the binoculars’ compact size, the ZEISS SFL delivers a comfortable viewing experience, even in twilight. 


Technical Data ZEISS SFL 40


8 x 40

10 x 40




8 x

10 x

Effective lens diameter

40 mm

Exit pupil diameter

5 mm

4 mm

Twilight factor



Field of view (ft/1,000yds)

420 ft

345 ft

Subjective viewing angle


Close focusing distance

4.9 ft

Diopter adjustment range 

+- 4

Exit pupil distance

18 mm

Interpupillary distance (IPD)

52 – 74 mm

Prism system




Nitrogen filling


Water resistance

400 mbar

Operating temperature

-4/+131 °F


5.7 in

Width at an interpupillary distance of 65 mm

4.5 in


22.6 oz

The ZEISS SFL provides exceptional optical performance combined with a compact and lightweight design.




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what our customers say


It's really nice being able to see what's going on at your stand in live time...I live in Florida and hunt Indiana so I can't check my cards... it's great with everything I'll give it it 5 Stars

Tom Sexauer
Key West, FL

Camera works great. Had an issue setting it up that I could not figure out. I got a quick and helpful response through email. I'm using regular Duracell batteries it seems to have great battery life.

Martin Shainover
San Antonio, TX

how to Mount a Trail Camera to a Tree?

Every camera comes with its own strap for basic mounting.  It wraps around the tree and latches in the back.  For a little extra security, check out our very own lockable steel enforced strap.

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Works flawless. I love them. Zero problems and they’re a game changer.

Steve N.
Los Angeles, CA

Fantastic camera....update regularly and there will be no issues

David C.
Bloomsburg, PA