The SA405 ED spotting scope is designed for birders. Professional-grade ED optical system delivers exceptional resolution, cuts chromatic aberration and provides outstanding color fidelity, edge-to-edge sharpness and light transmission.
The instructional video showing how to disassemble a 1.25" eyepiece https://www.youtube.com/shorts/IUO8Q14c5pg
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| Model | SA405 |
| Objective Lens Diameter | 85mm |
| Magnification | 20-60X |
| Prism Type | Porro Prism |
| Armor material | Rubber |
| Coating condition | Fully multi-coated |
| Eyepiece Diameter | 28mm |
| Eyepiece Glass Group | 10pieces/7group |
| Eye Relief | 19.5-18mm |
| Exit pupil | 4－1.35mm |
| Field of View（Angle） | 1.92-0.93° |
| Field of view | 102-48ft@1000yds |
| Near Focus Distance | 12m |
| Waterproof | IPX6 |
| Color | Army Green |
| Net Weight | 2100g |
| Unit Diamension | 430x103x173mm |
The Parameter Comparison of SV406P and SA405 Spotting Scope
| Model | SV406P | SA405 | SA405 |
| SKU | F9355B | F9383A | F9383B |
| Magnification | 20x-60x | 20-60X | 20-60X |
| Objective Diameter | 80mm | 85mm | 85mm |
| Objective Material | Extra-Low Dispersion Glass | Extra-Low Dispersion Glass | High Definition Glass |
| Focal Length | 430mm | 482.6mm | 482.6mm |
| Eyepiece Diameter | 24mm | 28mm | 28mm |
| Objective Lens structure | 3-Elements / 3Groups | 3-Elements /2Groups | 2-Elements /2Groups |
| Zoom Eyepiece Lens structure | 10pieces/7group | 7pieces/4group | 7pieces/4group |
| Prism Coating | FMC | FMC | FMC |
| Barrel Size of Eyepiece | 1.25inch | 1.25inch | 1.25inch |
| Real Field of Angle (Degree) | 2.1°-1.1° | 1.92°- 0.93° | 1.92°- 0.93° |
| Field of View (ft/1000yds) | 108ft-60ft@1000yds | 102-48ft@1000yds | 102-48ft@1000yds |
| Near Focus | 18ft / 5.5m | 12m | 12m |
| Exit Pupil (mm) | 4mm-1.33mm | 4－1.35mm | 4－1.35mm |
| Eye Relief (mm) | 20mm-18mm | 19.5-18mm | 19.5-18mm |
| Lens Coating | Fully multi-coated | Fully multi-coated | Fully multi-coated |
| Focus System | Dual Focus Mechanism | Helical Focus Wheel | Helical Focus Wheel |
| Nitrogen Filled | Yes | Yes | Yes |
| Waterproof | IPX7 | IPX6 | IPX6 |
| Eye Cup Type | Twist-up | Twist-up | Twist-up |
| Dimension | 405x180x120mm | 430x103x173mm | 430x103x173mm |
| Armor material | Rubber | Rubber | Rubber |
| Field of View (m/1000m) | 36m – 20m | 34m -16m | 34m -16m |
| Resolution (") | 2.0" | ||
| Relative Brightness | 16@20x / 1.69@60x | ||
| Apparent Field of View | 42°- 66° | 45° | 45° |
| Type of Prism | BaK-4 | K9 | K9 |
| Color | Army Green | Army Green | Army Green |
| Net Weight | 1625g / 3.58lb / 57.32oz | 2100g | 2020g |
- Adjustable eyecups can be twisted up and down for comfortable viewing with or without eyeglasses. The built-in sunshade reduces glare and shields the objective lens from raindrops and snow.
- The scope can be added to a tripod or car window mount that with 1/4-20 threads on the tripod heads.
- O-ring seal and Nitrogen filled provide waterproof and anti-fog performance. Rubber armor enhances both durability and grip for the user.
