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.

Magnification	10 ×
Effective lens diameter	40 mm
Light transmission	90%
Exit pupil diameter	4.0 mm
Twilight factor	20
Field of view at 1,000 m (yds)	115 m (345 ft)
Subjective viewing angle	62° 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
LotuTec \| Nitrogen filled
Water resistance	400 mbar
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)

SFL 10x40

Q & A