Zeiss SFL 8x40

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ZEISS SFL 8x40

The lightweight model among high-performance binoculars.
A pair specifically designed for birding!
 

With the ZEISS SFL binoculars (SmartFocus Lightweight), special moments can be experienced with ease. Optimized to be as lightweight and compact as possible, the SFL binoculars are a perfect addition to the SF family. The new Ultra-High-Definition (UHD) Concept ensures true-to-life color reproduction and the highest level of detail. Thanks to its SmartFocus Concept, the focus wheel is perfectly positioned and enables fast and precise focusing – even with gloves on. The optimized ergonomics and a large exit pupil allow for a relaxed and undisturbed viewing experience.

With a field of view of up to 140 meters at a distance of 1,000 meters and a closest focusing distance of 1.5 meters, the SFL 8x40 deliver a perfect overview combined with precise detail recognition.

The lens diameter has been reduced by 2 mm, making it possible to use thinner lens elements at closer spacing and thus reduce the binoculars’ weight by up to 20% and their volume by up to 13% compared to the ZEISS Victory SF models. As a result, the SFL binoculars are up to 30% lighter than comparable products from competitors.

 

The Ultra-High-Definition (UHD) concept features a special coating and an improved optical design that ensures the binoculars deliver the highest level of detail and reproduce colors with natural fidelity. This makes it possible to precisely identify the smallest features in the plumage and reliably distinguish between species. 

The SmartFocus concept makes it possible to focus quickly and precisely – without having to spread your fingers. The focusing wheel, perfectly positioned in the DoubleLink Bridge, offers the highest level of operating ergonomics, requiring only 1.4 turns from close focus to infinity and capable of being rotated precisely even with gloves on.

Featuring 90% light transmission and ZEISS T* multicoating, you can clearly and precisely recognize details in the twilight, ensuring that you capture every moment, even in darker environments.

Specs:

Features

LotuTec | Nitrogen filled

+ | +

Water resistance

400 mbar

Physical

Operating temperature

− 20°C | + 55°C (− 4°F | + 131°F)

Length

144 mm (5.7 ")

Width at an interpupillary distance of 65 mm

114 mm (4.5 ")

Weight

640 g (22.6 oz)

Performance

Magnification

8 ×

Effective lens diameter

40 mm

Light transmission

90%

Exit pupil diameter

5.0 mm

Twilight factor

17.9

Field of view at 1,000 m (yds)

140 m (420 ft)

Subjective viewing angle

60° Ww

Close focusing distance

1.5 m (4.9 ft)

Diopter adjustment range

− 4.0 | + 4.0 dpt

Exit pupil distance

18 mm

Pupil distance

52 – 74 mm

Lens type

UHD

Prism system

Schmidt-Pechan

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