Black Tortoise 20x42 Outdoor Image Stabilizer Binoculars Telescope BSV-7-SWA 23MM Eyepiece for BOSMA

Features:
- Optical anti shake system, +2.5° anti shake compensation, offsets hand and external shaking, ensuring a stable and clear field of view.
- Dual direct drive actuator: no transmission idle, millisecond level response, no dragging or lagging on the screen.
- Left and right homologous synchronization correction: coaxial synchronization throughout the entire process, avoiding view misalignment.
- Native Prism Anti Shake: Native compensation for optical path, no cropping, no image quality loss.
- Fully closed-loop precise control: MEMS gyroscope high-frequency sampling, Hall real-time calibration without drift.
- Dual mode design (follow/static): Follow mode is suitable for scanning and tracking moving targets, while static mode is suitable for observing stationary targets at fixed points. The default startup mode is follow mode. Flip left or right 90 degrees once to switch to static mode, and flip back to follow mode again.
- 20X high magnification optical fixed focus, no need for a tripod, the image remains stable and small details are clear even when viewed from a distance.
- Handheld observation of large field star clusters and galaxies, maintaining a 2.1mm exit pupil diameter at a magnification of 20 times.
- Supports MA6 mobile phone photography stand (not included).
- Front of focus flat field technology, with a flat image field and low distortion.
- ED low dispersion glass + 2 lanthanide glass restores the true color and significantly improves color difference, resulting in a realistic and natural color.
- 4 major coatings, upgraded high transparency (GT) materials, with a peak transmittance of up to 92% for the entire machine.
- BSR-9-UHD is extremely high-definition, with clear and sharp details in the distant view.
- BSV-7-SWA ultra wide angle, at 20X magnification, still has a 3.5° field of view, allowing for a complete view of the target.
- 23MM large eyepiece for comfortable viewing; Designed with ergonomics in mind, it increases the distance between the exit pupil and allows for long-term professional observation without any pressure or fatigue, catering to the core needs of outdoor exploration throughout the day.
- ±1000° wide range vision compensation, suitable for all eyes, with no obstruction for myopia, hyperopia or wearing glasses, allowing for free viewing; Low position eye mask, wearing glasses can also easily view the full field of view.
- Magnesium alloy mirror body, sturdy and durable, covered with rubber and engineering plastic for comfortable touch.
- BSW-7/F waterproof and anti fog, fearless of wind and rain; The inside of the mirror is filled with nitrogen to prevent fogging, making it clear in wind, rain, and fog. It is sturdy, durable, and easy to maintain.
- Indicator light: Green light constantly on -> Follow mode; Green light flashing slowly (breathing light effect) -> static mode; Red -> Low Battery

Specifications:
- Magnification: 20X
- Objective lens aperture: 42mm
- Wide-angle level: BSV-7-SWA
- FOV: 3.5°
- Product size: 193 x 121 x 66mm
- Net weight: 890g
- Optical system: front focus flat-field
- Prism system: roof prism
- Prism material: H-BaK7GT
- Focusing system: mid
- Near focus distance: 2.8m
- Exit pupil diameter: 2.1mm
- Exit pupil distance: 17mm
- Highlight coating level: BSC-8888/DC/PC/WR
- High definition level at the center of the field of view: BSR-9-UHD
- Waterproof and anti-fog level: BSW-7/F
- Lens special material: ED + 2 lanthanide
- Body material: magnesium alloy
- Anti-shake system: prism anti-shake
- Anti-shake mode: dual-mode (follow/static)
- Anti-shake calibration: ±2.5°
- Battery duration: 16 hours
- Refractive correction∞: >10dpt

Package Included:
- 1 x Binoculars