40X HD Zoom Phone Lens with Tripod Mount & Focus Ring
40x HD Telephoto Lens – Turn Your Phone into a Super Zoom Camera for Concerts & Wildlife
- Concerts / Music Festivals 40X Zoom + Manual Focus From the back row to VIP — your idol is just a twist away.
- Travel / Landmark Sightseeing HD Imaging + Lightweight & Portable Faraway details, all in one frame.
- Travel / Landmark Sightseeing HD Imaging + Lightweight & Portable Faraway details, all in one frame.
- Sports / Racing Events Fast Focus Response + Tripod Mount High-speed action, frozen in an instant.
- List IteNight / Low-Light Shooting Large Aperture + Bak4 Prism When light fades, clarity stays.m
- Creative / Everyday Discovery 40X Variable Zoom + Universal Phone Clip See the extraordinary in the ordinary, every day.
Why Choose This Optical Product
探索我们专业光学产品背后的先进性能、耐用结构、灵活定制和可靠的全球支持。
Professional HD Lossless Optical Telephoto
Precision-engineered Sturdy Structure,
Ultra-portable,
Durable & Rugged
Full OEM/ODM Customization
Direct From Factory
Market-Compliant Design with Full Worry-Free Protection
Product Specifications
| Brand | Brightsky |
| Size(cm) | 18cm * 4.5 cm * 4.5cm |
| Focal Length | 1400mm |
| Magnification factor | 40X |
| Mirror Material | ABS Plastic + Rubber‑coated |
| Lens Material | Optical Glass |
| Weight | 168g |
| Lens Craft | Broadband Coating |
| Model number | BRT-40x35J |
| Objective lens | 35mm |
Product Details
Professional Waterproof Marine Binoculars 10×50 with Compass Rangefinder

FMC Multi-Coated for True Color
The lens features fully multi-coated (FMC) optical glass, significantly reducing light reflection and flare. Every coating layer is precision-engineered to maximize light transmission, delivering images with accurate color reproduction, high contrast, and exceptional sharpness — even in challenging lighting conditions.

Solid Metal Construction
Crafted from high-grade aluminum alloy, the barrel undergoes precision CNC machining and anodized surface treatment. The result is a lightweight yet rugged body that withstands daily wear, offers excellent heat dissipation, and maintains optical alignment for years of reliable use.

Precision Non-Slip Focus Ring
The focus ring is engineered with diamond-patterned anti-slip texture, providing a firm and comfortable grip even in wet or sweaty conditions. The smooth rotational resistance allows for micro-adjustments, giving you total control to lock onto your subject with pinpoint accuracy.

Bak4 Prism — Edge-to-Edge Clarity
Equipped with high-refractive-index Bak4 glass prisms, this telephoto lens delivers a brighter, clearer image with no dark edges (vignetting). The prism system ensures superior light efficiency and produces round, crisp exit pupils, so you enjoy a full-field viewing experience with stunning detail from center to corner.

Soft Pads — Phone-Safe Design
The universal phone clip is lined with soft silicone pads on all contact points, providing a secure grip without leaving any scratches on your phone's screen or frame. The clip accommodates most smartphones (62mm–88mm width) and ensures stable alignment between the lens and your phone's camera for shake-free shooting.
Application scenario
Trustworthy Chinese Manufacturer of Optical Devices
We specialize in the design and manufacturing of optical devices, providing reliable products, flexible customization, and professional support for global distributors and brands.
10+ Years of Industry Experience
With over 10 years of optical manufacturing experience, we understand market requirements and deliver stable quality for long-term cooperation.
OEM/ODM Service Available
From product design and specifications to logo, color, packaging, and accessories, we provide flexible OEM and ODM solutions.
Global Export To 60+ Countries
Our optical products are supplied to customers in more than 60 countries, supported by reliable production and international export experience.
Quality Control Strict Inspection
Each product undergoes strict inspection throughout production to ensure optical performance, structural durability, and consistent quality.
Flexible MOQ Wholesale Orders
We support flexible minimum order quantities for trial orders, wholesale purchasing, and customized projects of different sizes.
Sample Support Fast & Efficient
Samples can be prepared quickly for quality evaluation, market testing, and customization confirmation before bulk production.
Custom Binoculars & Monoculars | OEM & ODM Service

Custom phone telephoto lens kits
Adjust lens magnification & accessories for outdoor photography.

Colorful shockproof kids binoculars
Custom hues & safe design for outdoor science activities.

Provide OEM services for our own brand
Your brand logo can be printed on the main body of the product and on the packaging.

Large-aperture HD binocular customization
Adjust specs & equipped with tripod for long-distance viewing.

The green binoculars feature a customised appearance colour
They are equipped with waterproof and anti-fog functions, and an optional compass function is also available.

Full accessory gift set customization
Custom boxes & matching parts for retail & holiday gifts.

Custom monocular telescopes with mini tripods
Ideal for birdwatching, hiking & sports events.
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Get Your Custom Optical Solution Today
- Factory-Direct Pricing
- Precision Optical Quality
- OEM & ODM Customization
- Flexible MOQ Support
- Fast Quotation & Delivery