zeiss|SKU:57-525024-0000-000

ZEISS SFL 10x50 — 50mm Light Gathering in a 42mm-Size Body

50mm Light Gathering in a 42mm-Class Chassis

50mm light, 42mm weight — Carry less, see more in low light
22.4 twilight factor — Identify game in the final minutes
90% light transmission — T* coating keeps images bright at dusk
SmartFocus Concept handling — Fast, intuitive focusing in the field
Nitrogen-filled, LotuTec coated — No internal fogging in rain or cold
  • Free shipping -- Fully insured — signature required on all optics
  • Free pre-purchase consult -- Talk to a technical optics expert before you buy
  • Authorized dealer warranty -- Full ZEISS manufacturer warranty — no gray market

Original price was: $1,799.99.Current price is: $1,599.99.

Out of stock

In the box

  • ZEISS SFL 10x50 binoculars
  • Neoprene carrying strap
  • Protective lens covers
ZEISS SFL 10x50
ZEISS SFL 10x50 — 50mm Light Gathering in a 42mm-Size Body
$1,799.99 Original price was: $1,799.99.$1,599.99Current price is: $1,599.99.

50mm Light Gathering in a 42mm-Class Chassis

The ZEISS SFL 10x50 delivers 50mm objective light gathering in a body that weighs like a 42mm binocular. With a 22.4 twilight factor and 90% light transmission through ZEISS T* coatings, this glass keeps your target visible when shooting light is fading on a late-season elk hunt. The 5mm exit pupil at 10x feeds enough light for those final minutes, while Schmidt-Pechan prisms and UHD elements maintain clarity across the field of view. Field-tested and wilderness-grade, the SFL 10x50 is precision-built for hunters who glass hard through long days and expect reliable performance 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
90% Light Transmission
22.4 Twilight Factor
LotuTec & Nitrogen Filled
UHD Lens Elements
10×50
Magnification & Objective
366 ft
Field of View at 1,000 yds
5.9 ft
Close Focus Distance
Glass That Holds When the Tag Is on the Line

Glass That Holds When the Tag Is on the Line

The ZEISS SFL 10x50 earned its spot because it passes the test that matters — not unboxing aesthetics, but performance after a 4-mile pack-in at 10,000 feet in driving rain. Nitrogen-filled construction with LotuTec coating means no internal fogging when temperatures drop below freezing at dawn. Schmidt-Pechan prisms and UHD lens elements deliver 90% light transmission through ZEISS T* coating, producing a 5mm exit pupil that keeps your target visible when the bull steps into the last 15 minutes of legal shooting light. Hunt Premium carries this optic because we don't list glass we wouldn't bet a $3,000 tag on.

50mm Performance Without the Pack Weight

50mm Performance Without the Pack Weight

The SFL 10x50 is built around a compact chassis that rivals traditional 42mm binoculars in size and weight. At just 160mm in length, it rides in a chest harness without pulling on your neck during a 10-day backcountry elk hunt. The 10x magnification gives you enough power to pick out antler tines at 600 yards while maintaining a 366-foot field of view at 1,000 yards for tracking moving game in heavy timber. The SmartFocus Concept provides a short, intuitive focus wheel throw — you go from close-focus at 5.9 feet to distant ridgelines without taking your eyes off the glass. This is season-proven gear for hunters who count every ounce.

See What Your Buddies Miss at Last Light

See What Your Buddies Miss at Last Light

A 22.4 twilight factor combined with 90% light transmission through ZEISS T* coating means the SFL 10x50 resolves detail when most hunters have already put their glass down. The 5mm exit pupil at 10x delivers usable light transmission in the final minutes before legal shooting light closes — exactly when mature bucks and bulls move. UHD lens elements reduce chromatic aberration at distance, so a dark-bodied elk against dark timber separates cleanly at 400 yards instead of becoming an indistinct shape. With an 18mm exit pupil distance, this bino works well with eyeglasses. The diopter adjustment ranges from −4.0 to +4.0 dpt, accommodating most hunters' vision corrections without prescription lenses.

Physical Fit

The SFL 10x50 is built to accommodate a wide range of hunters, including those who wear eyeglasses in the field.

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

Where This Glass Earns Its Spot

The SFL 10x50 is built for hunters who spend long hours behind glass and need 50mm low-light performance without the bulk.

Western Big Game Glassing
Dawn and Dusk Low-Light Sessions
Backcountry Pack Hunts
Late-Season Whitetail Stands

Full specifications

At a glance

Dimensions
See product page
Full specifications16 data points across 4 categories

Dimensions

Length160 mm (6.3 ")
WidthSee product page

Power & Performance

Magnification10×
Effective lens diameter50 mm
Light transmission90%
Exit pupil diameter5 mm
Twilight factor22.4
Field of view at 1,000 m (yds)122 m (366 ft)
Subjective viewing angle66° Ww
Close focusing distance1.8 m (5.9 ft)
Lens typeUHD

Materials

Prism systemSchmidt-Pechan
LotuTec+
Nitrogen filled+

Compliance & Warranty

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

The Hunt Premium Promise

Every optic we sell is backed by authorized dealer status, honest technical support, and the kind of service serious hunters expect.

Authorized Dealer — Full ZEISS WarrantyYour ZEISS SFL ships with full manufacturer warranty support. No gray market, no risk.
Free Shipping — Fully InsuredShips free with full insurance and signature confirmation. Your glass arrives safe.
30-Day ReturnsIf it doesn't earn its spot in your pack, return it within 30 days — unmounted, in original packaging.
★★★★★
“I swapped from a 42mm bino to the SFL 10x50 for my Colorado elk hunts. The difference at last light isn't subtle — I could still pick out antler tines at 500 yards with about 12 minutes of legal light left, where my old glass had already gone flat. The weight is barely more than my 42s, and the SmartFocus wheel is fast enough to pick up a moving animal in timber without fumbling. This is the glass I should have bought years ago.”
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 10×50 offers a 10x magnification, delivering detailed views while maintaining stability, making it versatile for both close-range and mid-range hunting scenarios.

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: 10×
Effective lens diameter: 50 mm
Light transmission: 90%
Exit pupil diameter: 5 mm
Twilight factor: 22.4
Field of view at 1,000 m (yds): 122 m (366 ft)
Subjective viewing angle: 66° Ww
Close focusing distance: 1.8 m (5.9 ft)
Diopter adjustment range: − 4.0 | + 4.0 dpt
Exit pupil distance: 18 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: 872 g (30.8 oz)
SKU: 525024-0000-000

Reviews

There are no reviews yet.

Be the first to review “ZEISS SFL 10x50 — 50mm Light Gathering in a 42mm-Size Body”

Your email address will not be published. Required fields are marked *

Frequently Asked Questions

The SFL 10x50 gives you a 50mm objective with the footprint of a 42mm — you're not choosing between light gathering and pack weight anymore. The 22.4 twilight factor and 5mm exit pupil at 10x deliver measurably more usable light in the last 15 minutes of shooting light compared to any 42mm on the market. If you hunt mornings and evenings where that window matters, the performance difference is visible every time you glass.
Yes. Hunt Premium is an authorized ZEISS dealer. Every SFL 10x50 ships with the full manufacturer warranty intact — no gray-market risk, no voided coverage. When you spend $1,599 on glass, authorized dealer status isn't a footnote. It's the difference between a warranty backed by ZEISS and a $1,599 paperweight if something goes wrong two years from now.
It depends on your hunting style. The SFL 10x50 gives you enough power to identify antler tines at 600 yards while still maintaining a 366-foot field of view at 1,000 yards for tracking game in timber. The SmartFocus Concept keeps focusing fast and intuitive. For western big game hunters who glass across open basins and then transition into timber, 10x is the right balance of magnification and field of view.
That's the comparison every serious hunter makes. The SFL 10x50 offers a larger 50mm objective with a 22.4 twilight factor, giving you more light in low light than a 42mm objective can deliver at the same magnification. The tradeoff is slightly more bulk — though the SFL is still compact for a 50mm. Whether the ZEISS or Swarovski earns the spot depends on your specific hunt: if low-light performance is the priority, the 50mm objective is the advantage.
The SFL 10x50 is nitrogen-filled and sealed with LotuTec coating, rated to 400 mbar water resistance and operating temperatures from −4°F to +131°F. Internal fogging should not occur under normal hunting conditions. If it does, your ZEISS warranty through Hunt Premium as an authorized dealer covers it. We chose this bino specifically because it passes field conditions — rain, cold, altitude — without failure.
Absolutely. Every purchase over $800 at Hunt Premium includes a free pre-purchase consultation with a technical optics expert. We'll talk through your typical hunting distances, terrain, light conditions, and whether 10x50 is the right configuration — or if a different magnification or objective size fits your application better. Call us before you buy. We'd rather recommend the right glass than sell the wrong one.
SKU: 57-525024-0000-000 Categories: , Brand:

The Hunt Premium Promise

Every optic we sell is backed by authorized dealer status, honest technical support, and the kind of service serious hunters expect.

Authorized Dealer — Full ZEISS Warranty Your ZEISS SFL ships with full manufacturer warranty support. No gray market, no risk.
Free Shipping — Fully Insured Ships free with full insurance and signature confirmation. Your glass arrives safe.
30-Day Returns If it doesn't earn its spot in your pack, return it within 30 days — unmounted, in original packaging.

Related products

About zeiss Binoculars

zeiss is a trusted manufacturer of premium binoculars. HuntPremium is an authorized dealer offering the full zeiss lineup with free delivery, price match guarantee, and expert support.

View all zeiss products →

Related Categories

Accessories 100 products Bags 62 products Base Layers 49 products Bino Accessories 43 products Bipods & Tripods 36 products Blinds 12 products
Join the Grill Island Community

Expert Picks, Straight to Your Inbox

No spam. Just the gear worth knowing about.

No spam. Unsubscribe anytime.