Porro Binoculars WP48 7x50 Black
The WP48 7x50 is a non-waterproof porro prism binocular with a 50 mm objective lens, built for brands that need a high-light-gathering model for low-light observation. It uses a single hinge design and is available in full black or green+black. The standard build includes BK7 prisms and green+blue coating, but BAK4 prisms and alternative coatings are available. It is tripod adaptable and shares its optical system with other models in the WP48 series.
| Model | WP48 |
|---|---|
| Magnification | 7x |
| Objective Diameter | 50 mm |
| Prism System | Porro, BK7 or BAK4 optional |
| Coating | Green+blue |
| Waterproof and Fogproof | No |
| Focus System | Centre focus |
| Eyecups | Fold down |
| Tripod Adaptable | Yes |
| Manufactured In | Chongqing, China |
| Standard Quotation Basis | FOB Chongqing Port |
Key Benefits
Porro Binoculars WP48 7x50 Black: 7x magnification with a 50 mm objective gathers more light than smaller models, improving visibility in low light
Single hinge design allows compact folding for storage and transport
Tripod adaptable, so the same SKU serves hand-held use and long static observation
Green+blue coating improves light transmission and image clarity
BK7 prisms as standard, with BAK4 available for better image quality
Customisable coating and prism options let buyers match their brand’s performance claims
Where It Is Used
Birdwatching at dawn or dusk when light levels are low
Hunting in forested or dense terrain where light is limited
Wildlife observation in early morning or late evening
Outdoor education and nature programs for children and adults
General-purpose observation where a large objective lens is needed
Who It Is For
- Optics brands that need a non-waterproof 7x50 porro model under their own label
- Importers replacing a non-waterproof 50 mm model that is not nitrogen filled
- Amazon and e-commerce sellers who need a low-cost, high-light-gathering SKU
- Outdoor and hunting retail chains building a mid-tier house brand
- Buyers who already stock other WP48 models and want to expand the series
Problems It Solves
Low light performance issues in binoculars with smaller objective lenses
The cost of developing a new optical system when only the housing or branding changes
Inconsistent image quality when using BK7 prisms in a model that could use BAK4
Lack of tripod adaptability in models that need long observation sessions
Uncertain performance claims when a model is marketed as waterproof but is not
Technical Features
- Porro Binoculars WP48 7x50 Black: Porro prism (ZCF) layout with BK7 prisms as the standard build
- Green+blue coating across the optical train
- No nitrogen fill, not waterproof or fogproof
- Centre focus wheel with a right eye dioptre adjustment
- Fold down eyecups for compact storage
- Tripod adaptable through a standard adapter thread
- Single hinge design for folding and portability
Materials
- Porro Binoculars WP48 7x50 Black: BK7 prisms as the standard specification
- Green+blue coating on all optical surfaces
- Porro prism body with single hinge
- Plastic housing with black or green+black finish
- Fold down rubber eyecups
How It Is Made
Porro Binoculars WP48 7x50 Black: Optical element grinding and coating to the agreed green+blue recipe
Prism cementing and alignment
Body assembly on the porro binocular line in the Chongqing factory
Centre focus wheel and dioptre ring installation
Eyecup folding mechanism test
Final visual inspection and packaging
Quality Control
- Porro Binoculars WP48 7x50 Black: Collimation checked on every assembled unit before it leaves the line
- In-process checks by Shinyzen staff based twenty minutes from the factory
- Buyer led factory audit and pre shipment inspection can be arranged on request
- No IPX7 or nitrogen fill verification required as the model is non-waterproof
Customisation Options
- Coating changed from the standard green+blue to all blue or all green
- Prism specification changed between BK7 and BAK4
- Coating on prisms and penta prisms specified separately
- Own logo, brand name and private label on the body and packaging
- Packing method and retail box design to the buyer's artwork
- Housing colour available in full black or green+black
Compared With Other Models
- WP48 10x50
- The 10x reaches further but shakes more hand-held and gives a dimmer image at dusk; the 7x is better for steady low-light viewing
- WP48 7x35
- The 7x35 is lighter and smaller but gathers less light; the 7x50 is better for low-light use
- WP48 16x50
- The 16x has higher magnification but is harder to hold steady and requires a tripod; the 7x is more practical for hand-held use
- Waterproof models like the WD67 8x42
- The WD67 is nitrogen filled and IPX7 rated; the WP48 is not waterproof and should not be submerged
Use Guide
- Porro Binoculars WP48 7x50 Black: Set the barrel spacing until the two images merge into one circle
- Close the right eye and focus the centre wheel until the left image is sharp
- Close the left eye and turn the right dioptre ring until that side matches
- Fold down the eyecups when wearing glasses and keep them up when not
- Mount on a tripod through an adapter for observation sessions longer than a few minutes
- Wipe off dust and fingerprints with a soft cloth; avoid submerging in water
Read Next
Questions About the Porro Binoculars WP48 7x50 Black
Is the WP48 7x50 waterproof or only non-waterproof?
It is not nitrogen filled and is not waterproof. It is daily-life water resistant and can survive light splashes, but should not be submerged.
What is the difference between BK7 and BAK4 prisms?
BAK4 prisms provide better light transmission and sharper image edges than BK7, but BK7 is standard and lower cost.
Can we change the coating and prism type?
Yes. The standard is green+blue coating with BK7 prisms. All blue, all green, or separate prism and penta prism coatings are available. BAK4 can replace BK7.
Can we put our own brand on it?
Yes. Logo, brand name, private label and packing method are all customisable. Different customisation changes the cost, so send your artwork and we will quote.
Where is it made and on what terms do you quote?
It is produced in our own factory in Chongqing, China. Quotations are normally based on FOB Chongqing Port unless you ask for other terms.
Can you ship straight to an Amazon warehouse?
Yes. Shipping direct to Amazon warehouses is supported alongside sea freight, air freight and courier.
Quote the Porro Binoculars WP48 7x50 Black
Send the quantity, the branding you need and the destination. We reply with a specification sheet and an FOB Chongqing price.