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SA205 10x42 ED Flat-field Binoculars BaK-4 Prism With IP67 Waterproof For Birding & Nature Observation

SKU: F9389B-
US$ 236.99

The SA205 10x42 ED glass binoculars is portable with IP67 waterproof function. It is FMC coating with large objective lens. It is excellent for birding and nature observation.

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SA205 10x42 ED Flat-field Binoculars BaK-4 Prism

The ED glass binoculars is portable with IP67 waterproof function. It is FMC coating with large objective lens. Excellent for birding and other nature observation.


Flat Fileld Correction

The flat-field design can effectively control the edge distortion of the field of view, making your field of vision clear.


Large Objective Lens

The large objective lens can gather more light to provide more clear image and increase your field of view range.


FMC Coating


ED Glass

ED glass can eliminates chromatic aberration or color fringing, a visual defect common in binoculars. You'll enjoy razor-sharp images.


Right Visual Diopter Adjustment


Magnesium Alloy Mirror Body

The magnesium alloy material is lightweight and heat-dissipating, making the telescope more portable, durable, and used in various environmental conditions.


IP67 Waterproof


Phone Adapter Upgrade

Equipped with a universal phone holder for random shooting, it can quickly capture clearer and brighter photos.


Neck Strap


Twist-up Eyecup


Various Application Scenarios

Binoculars are widely used in nature observation, tourism, sports viewing, hunting observation and other fields. They provide better vision and magnification, allowing observers to view distant objects more clearly.




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Model SA205 SA205
SKU F9389B F9389A
Objective lens type ED ED
Applied technology Flat field  Flat field 
Objective Diameter 42mm 42mm
Magnification 10X 8X
Prism Type Roof Roof
Prism Glass Material BAK4 BAK4
Armor material Rubber Rubber
Coating condition Fully multi-coated Fully multi-coated
Diameter Of The Eyepiece 20.8mm 23.5mm
Eye Relief  17mm 20mm
Exit pupil  Ø5.25mm Ø5.25mm
Field of View 6.4° 7.7°
Field of view  (at 1000yds)403.8ft (at 1000yds)403.8ft
Field of view  (at 1000M)134.6m (at 1000M)134.6m
Min. Focal length 2m 2m
Diopter system Right Eyepiece Right Eyepiece
Diopter comp ±5 ±5
Resolution ≤4.8" ≤4.8"
Inter pupillary distance 56-77mm 56-77mm
Focus System Center Center
Waterproof IP67 (1.5 meter / 3 Min) IP67 (1.5 meter / 3 Min)
Eyecups Twist-up Twist-up
Tripod Adapter interface Yes Yes
Color Black Black
Net Weight 700g  690g 
Dimension 135x129x52mm 135x129x52mm


1. Flat field correction; 
2. ED glass; 
3. FMC coating; 
4. Accessories upgrade; equipped with phone holder;
5. Magnesium alloy mirror body; 
6. Large eyepieces; 
7. Diopter adjustment;
8. IP67 waterproof; 
9. Large anti-slip focusing wheel; 
10. Environmental protection rubber protective skin; 
11. Twist-up eyecups.

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