zeiss|SKU:57-525023-0000-000

ZEISS SFL 8x50: 50mm Light Gathering in a 42mm-Size Chassis

50mm Light Gathering in a 42mm-Class Package

50mm light, 42mm size — Carries all day without neck fatigue
6.25mm exit pupil — Visible targets in the last minutes of shooting light
393 ft field of view — Track moving game across open country
UHD glass, T* coated — 90% light transmission for dawn and dusk
  • FREE Shipping -- Fully insured — signature required on optics over $500
  • FREE Pre-Purchase Consult -- Talk to a technical optics expert — magnification selection, tripod pairing, application fit
  • Authorized Dealer Warranty -- Full manufacturer warranty honored — no gray market

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  • ZEISS SFL 8x50 Binoculars
ZEISS SFL 8x50
ZEISS SFL 8x50: 50mm Light Gathering in a 42mm-Size Chassis
$0.00

50mm Light Gathering in a 42mm-Class Package

The ZEISS SFL 8x50 delivers 50mm objective performance in a chassis that packs and carries like a traditional 42mm binocular. A 6.25mm exit pupil and 20.0 twilight factor keep your target visible when shooting light is fading on a late-season elk hunt. The Schmidt-Pechan prism system with ZEISS T* coating pushes 90% light transmission through UHD lenses, while the SmartFocus concept provides precise, intuitive handling on the glass. This is precision-built, wilderness-grade optics for hunters who spend long hours behind glass from first light to last.

FREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORT
Light as a 42mm Bino
SmartFocus Concept
LotuTec & Nitrogen Filled
90% Light Transmission
6.25 mm
Exit Pupil Diameter
20.0
Twilight Factor
393 ft
FOV at 1,000 yds
Field-Tested Glass That Holds Up When It Counts

Field-Tested Glass That Holds Up When It Counts

The ZEISS SFL 8x50 earned its spot on Hunt Premium because it delivers where unboxing-friendly glass fails — in actual hunting conditions. The Schmidt-Pechan prism system with LotuTec coating and nitrogen filling handles driving rain and temperature swings from −4°F to +131°F without internal fogging. We don't list optics we wouldn't bet a $3,000 tag on, and this field-tested binocular has proven itself through real backcountry evaluation, not studio lighting. At 6.3 inches long with a 50mm objective, it gives you the low-light advantage of full-size glass without the pack weight that keeps you from reaching the glassing point by first light.

90% Light Transmission for the Last Minutes of Legal Shooting Light

90% Light Transmission for the Last Minutes of Legal Shooting Light

A 6.25mm exit pupil and 20.0 twilight factor mean the SFL 8x50 gathers enough light to separate antler tines from timber when most hunters have already put their glass down. ZEISS T* coating on season-proven UHD lens elements pushes light transmission to 90%, which is the spec that actually matters when you're glassing elk at dawn in heavy cover. Combined with a 393-foot field of view at 1,000 yards, the 8x magnification lets you scan wide basins and still pick up movement at the edges without constant repositioning. The 20mm eye relief and 58° subjective viewing angle keep the image comfortable during extended glassing sessions on ridgelines.

SmartFocus Handling That Stays Precise with Cold, Gloved Hands

SmartFocus Handling That Stays Precise with Cold, Gloved Hands

The ZEISS SmartFocus Concept places the focus wheel in a position that your hand finds naturally, even when wearing gloves on a November whitetail sit. The diopter adjustment ranges from −4.0 to +4.0 dpt, covering most hunters' vision corrections without needing prescription adapters. At just 6.3 inches long, the trail-ready SFL 8x50 rides in a bino harness like a 42mm class optic — no swinging weight pulling on your neck during a 4-mile pack-in to 10,000 feet. A 56–74mm interpupillary range accommodates most face shapes, and the 5.9-foot close focus distance lets you inspect tracks or blood sign without switching to a separate magnifier.

Fit & Handling

The SFL 8x50 is built for all-day glassing sessions with adjustment ranges that accommodate most hunters, with or without eyeglasses.

  • Interpupillary distance adjusts from 56 mm to 74 mm
  • 20 mm exit pupil distance works with eyeglasses
  • Diopter adjustment covers −4.0 to +4.0 dpt

Where This Bino Earns Its Spot

The 8x magnification and wide 393-foot field of view at 1,000 yards make the SFL 8x50 ideally suited for specific hunting scenarios where fast acquisition and low-light performance matter most.

Tracking fast-moving game across open terrain
Glassing at dawn and dusk in low-light conditions
Scanning expansive landscapes on western hunts
Long glassing sessions where weight matters

Full specifications

At a glance

Warranty
See product page
Full specifications18 data points across 4 categories

Dimensions

Length160 mm (6.3 ")
Pupil distance56 – 74 mm
Exit pupil distance20 mm

Power & Performance

Magnification8×
Effective lens diameter50 mm
Light transmission90%
Exit pupil diameter6.25 mm
Twilight factor20.0
Field of view at 1,000 m (yds)131 m (393 ft)
Subjective viewing angle58° Ww
Close focusing distance1.8 m (5.9 ft)
Diopter adjustment range− 4.0 | + 4.0 dpt

Materials

Lens typeUHD
Prism systemSchmidt-Pechan
LotuTec | Nitrogen filled+ | +

Compliance & Warranty

Water resistance400 mbar
Operating temperature− 20°C | + 55°C (− 4°F | + 131°F)
WarrantySee product page

The Hunt Premium Promise

Every optic we sell is backed by authorized dealer status, honest support, and a straightforward return policy.

Authorized ZEISS DealerFull manufacturer warranty honored on every pair — no gray-market risk, no voided coverage.
Free ShippingShips free with full insurance. Signature required on all optics orders.
30-Day ReturnsUnmounted, in original packaging with caps on — send it back on us if it doesn't earn its spot.
★★★★★
“I swapped from a 10x42 to the SFL 8x50 after three seasons of losing detail in the last ten minutes of shooting light on my Colorado elk hunts. The 6.25mm exit pupil is not marketing talk — I could see antler tines at 400 yards with ten minutes of legal light left where my old glass showed me a dark shape and a guess. Packs like a 42mm, sees like a 50mm.”
F
First L.Durango, CO

The ZEISS SFL 50 binoculars offer premium optics in an exceptionally lightweight and compact design, rivaling traditional 42mm models. Combining outstanding optical performance with portability, they are the perfect choice for those seeking optical excellence and convenience.

The ZEISS SFL 8×50, with its 8x magnification, provides a wide field of view, making it ideal for tracking fast-moving game and scanning expansive landscapes during hunts.

FEATURES:

  • Compact and as light as 42 mm binoculars
  • Reliably identify targets
  • SmartFocus Concept for an intuitive and precise handling
  • Bright images even in low light
  • Comfortable viewing experience
  • ZEISS T* Coating
  • A clear view, whatever the weather

SPECIFICATIONS:

Magnification: 8×
Effective lens diameter: 50 mm
Light transmission: 90%
Exit pupil diameter: 6.25 mm
Twilight factor: 20.0
Field of view at 1,000 m (yds): 131 m (393 ft)
Subjective viewing angle: 58° Ww
Close focusing distance: 1.8 m (5.9 ft)
Diopter adjustment range: − 4.0 | + 4.0 dpt
Exit pupil distance: 20 mm
Pupil distance: 56 – 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: 160 mm (6.3 “)
Width at an interpupillary distance of 65 mm: 133 mm (5.2 “)
Weight: 855 g (30.2 oz)
SKU: 525024-0000-000

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Frequently Asked Questions

The 6.25mm exit pupil and 90% light transmission deliver measurably more usable light at legal shooting hours than any 42mm binocular can produce. If your hunting demands glassing in the first and last 15 minutes of daylight — elk timber at dawn, mule deer in late-season dusk — the 50mm objective gathers light that a 42mm physically cannot. The SFL chassis keeps the weight penalty minimal, so you are paying for actual optical performance, not bulk.
Yes. Hunt Premium is an authorized ZEISS dealer. Every SFL 8x50 ships with the full ZEISS manufacturer warranty, backed by a verified dealer relationship — not a gray-market listing. When you spend on ZEISS glass, the warranty is part of what you are paying for. Buying from an unauthorized seller means that warranty can be voided, turning a long-term investment into a repair bill. We include proof of authorized status with every order.
For western big game where glassing distances range from 200 to 800+ yards, 8x magnification hits the practical sweet spot. It provides a 393-foot field of view at 1,000 yards — wide enough to scan open sage and timber edges without losing animals at the periphery. Higher magnification narrows your field of view and amplifies hand shake, which costs you time when you need to locate animals quickly at first light. If your primary use is spot-and-stalk elk or mule deer, 8x is the more versatile choice.
Twilight factor is calculated as the square root of magnification times objective diameter. The SFL 8x50 produces a 20.0 twilight factor, while a typical 10x42 produces 20.5 — nearly identical on paper. However, the SFL's 6.25mm exit pupil delivers more light to your eye than the 4.2mm exit pupil of a 10x42, which becomes visible in real low-light conditions. Combined with 90% light transmission from ZEISS T* coating on UHD glass, the 8x50 will show you more detail in the last minutes of legal light than a 10x42 with similar twilight factor but smaller exit pupil.
The SFL 8x50 is nitrogen-filled and sealed with LotuTec coating, rated for 400 mbar water resistance and operating temperatures from −4°F to +131°F. Internal fogging from temperature swings or rain infiltration is what this sealing system is designed to prevent. If a defect does surface, your ZEISS warranty is fully honored through Hunt Premium as an authorized dealer. Contact us directly and we handle the warranty process — no navigating third-party support or proving purchase authenticity.
The SFL series supports tripod mounting via an optional adapter that threads into the front hinge. For extended glassing sessions — spotting bedded elk across a basin or glassing open desert for Coues deer — a tripod eliminates hand shake and lets you use the full resolving power of the UHD glass at distance. If more than half your glassing time involves sustained observation from a fixed position, a tripod adapter is a worthwhile addition. Call us and we will pair the right adapter for your setup.
SKU: 57-525023-0000-000 Categories: , Brand:

The Hunt Premium Promise

Every optic we sell is backed by authorized dealer status, honest support, and a straightforward return policy.

Authorized ZEISS Dealer Full manufacturer warranty honored on every pair — no gray-market risk, no voided coverage.
Free Shipping Ships free with full insurance. Signature required on all optics orders.
30-Day Returns Unmounted, in original packaging with caps on — send it back on us if it doesn't earn its spot.

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About zeiss Binoculars

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