Delta Optical Forest ED 8x42 Gen3 Binoculars Roof Prism FMC Rubber Armoured
"If steady viewing and wide field of view matter most, the 8x42 Forest Gen 3 is hard to beat. Perfect for woodland stalking or extended glassing, they deliver impressive clarity with reduced shake and excellent low-light performance. A great choice for hunters who want comfort and optical quality without overspending." - Thomas (Online Sales Associate & Product Specialist).
The Delta Optical Forest 8x42 Gen3 Binoculars represent the latest generation of Delta’s renowned Forest series, engineered for those who demand precision, reliability, and outstanding optical performance in all outdoor environments.
Pairs high-definition optics with rugged, field-ready design. Ideal for nature observation, birding, hunting and any outdoor adventure where steady, bright views matter.
Featuring ED (Extra-Low Dispersion) glass and BaK4 roof prisms with dielectric and phase-correction coatings, these binoculars deliver exceptionally sharp, bright, and true-to-life images across the entire field of view.
Built from a lightweight magnesium-aluminium alloy, the Forest 8x42 Gen3 combines durability with a compact, ergonomic form that’s easy to handle, even during extended use.
The nitrogen-filled, fully waterproof and fogproof body ensures clear viewing in any weather.
With a wide 8.1° field of view, 17.2 mm eye relief, and smooth central focusing, these binoculars are ideal for nature observation, birdwatching, travelling, and hunting.
Rugged, reliable, and optically advanced, the Delta Optical Forest 8x42 Gen3 is a dependable companion for every outdoor adventure.
Perfect for:
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Birdwatchers & wildlife observers — wide field and sharp detail help follow rapid movement.
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Hunters — bright optics and rugged construction make them a reliable optics partner in the field.
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Hikers, campers & nature lovers — balanced optics with durable design for varied adventure terrain.
Less ideal if:
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You need extreme low-light performance beyond typical dawn/dusk — larger objectives (50 mm+) may help more.
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You want integral image stabilisation — this model does not have that feature
- Magnification 8×
- Objective Lens Diameter 42 mm
- Prism Type Roof (BaK4)
- Lens Glass ED (Extra-Low Dispersion)
- Optical Coatings FBMC (Fully Broadband Multi-Coated) with phase correction
- Angular Field of View 8.1°
- Linear Field of View at 1000 m 142 m
- Exit Pupil Diameter 5.2 mm
- Eye Relief 17.2 mm
- Minimum Focusing Distance 2 m
- Relative Brightness 27.6
- Twilight Efficiency 18.3
- Focus Adjustment Central
- Interpupillary Distance Adjustment 59–73 mm
- Dioptre Correction ±5
- Tripod Mount 1/4″ adapter (central thread)
- Nitrogen Filling Yes
- Waterproof Yes
- Weight 709 g
- Dimensions 147 × 127 × 56 mm
- Housing Material Magnesium-aluminium alloy, rubberised
- Advanced Optical System: ED (Extra-Low Dispersion) lenses minimise colour fringing and enhance clarity across the image field.
- Superior Light Transmission: Fully Broadband Multi-Coated (FBMC) optics improve contrast and brightness in all lighting conditions.
- High-Precision Prisms: BaK4 roof prisms with dielectric and phase coatings deliver crisp detail and perfect colour balance.
- Durable, Lightweight Body: Magnesium-aluminium alloy housing combines strength with portability.
- Ergonomic Rubber Armour: Provides a comfortable, slip-resistant grip, even in wet or cold environments.
- Smooth Central Focus: Enables quick and accurate focusing, with dioptre adjustment for personalised sharpness.
- Comfortable Viewing: Long 17.2 mm eye relief makes them suitable for users wearing glasses.
- Tripod Mountable: Built-in 1/4″ thread allows attachment to a tripod for steady, extended viewing sessions.
- Weather-Sealed Construction: Waterproof, nitrogen-purged design prevents internal fogging and protects against moisture.
- Compact and Balanced: Streamlined dimensions make it easy to carry during hikes, birdwatching trips, or travel excursions.
- Delta Optical Forest 8x42 Gen3 Binoculars
- Binocular case
- Case strap
- Binocular strap
- Lens caps
- Eyepiece covers
- Optics cleaning cloth
Q: Are these binoculars considered compact or full-size?
They fall into the mid-size / all-purpose class — easier to hold than larger 50 mm models but brighter and more capable than compacts. Excellent balance of brightness, reach and field of view.
Q: What does a wide field of view help with?
A wide 8.1° view helps you track moving subjects and scan terrain quickly without panicking the target — especially useful for birdwatching or fast wildlife sightings.
Q: How do I reduce shake at higher magnification?
At 8×, image shake is more noticeable than at 6×. Using a neck strap tight against your chest or a bean bag / tripod improves steadiness.
Q: What’s the benefit of nitrogen filling?
Nitrogen purge prevents internal fogging when temperature or humidity changes — crucial for dewy mornings or wet conditions.
Q: Are these suitable for eyeglass wearers?
With ~17 mm eye relief and adjustable twist-up eyecups, these are generally comfortable for users with glasses.
Q: How do phase and dielectric prism coatings help?
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Phase correction improves contrast and resolution by reducing light phase distortion.
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Dielectric coating boosts light reflection for brighter, more accurate colour images.
Q: How should I clean the lenses?
Use a soft microfiber cloth and gentle brush first to remove dust, then lightly wipe. Avoid pressure and never use household cleaners. Tip: Keep covers on when not observing to protect coatings.
- 5 Year Warranty
Tactical Scope Shipping Policy
Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means.
Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.
DPD SHIPMENTS REQUIRE THE CUSTOMER TO SHOW A PIN CODE ON DELIVERY – READ MORE: HERE
Note: The above DPD link is to our group partner site Optics Warehouse, with whom we share logistics and stock. Link opens in a new window.
Couriers
We use DPD, Royal Mail, TNT, and UPS courier services for all our UK and international orders. Once your order is dispatched, you will receive an email with your unique tracking number.
In-Store Items
These are items we have in stock and aim to dispatch within 1–2 working days. During busy periods, this may be delayed slightly. If you'd prefer to collect your item in person, please contact us in advance to arrange. Collection orders must be paid for beforehand.
Pre-Order Items
Pre-order items are typically out-of-stock or in limited supply. Purchasing a pre-order secures your item, and it will be dispatched within 24 hours of restock where possible. Check the product page for estimated restock dates. These dates may change, so staying in touch is advised.
International Delivery & Taxes
If your shipping address is outside the UK, you may incur import duties or taxes upon arrival in your country. These charges are your responsibility. Customs regulations vary, so please check with your local customs office. Some packages may be opened for inspection.
Need Help?
If you need assistance, call us at +44 (0)1803 611895 (Optics Warehouse) or email [email protected].
DPD Shipments & PIN Code Delivery
We have now introduced DPD Pin Code verification for all orders shipped via DPD. You will receive a PIN via email and text.
A valid email and mobile number must be provided at checkout. Emails will come from Riviera House 3PL. Please check spam/junk folders if not received.
Failure to present your PIN to the delivery driver will result in a failed delivery and rescheduling may be required.