lens-dat

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camera lens

lens selection

Specifications - M12 小型 3.9mm 焦距、F1.0 大光圈镜头

• Aperture (F No.): 1.0 ±10%
• Focal length (焦距): 3.9 ±5%
• Optical back focal length (Optical Back Focal Length): 3.94 ±0.2 mm (in air)
• Mechanical back focal length (Mechanical Back Focal Length): 3.85 ±0.2 mm (in air)
• Total lens length (TTL): 22.24 ±0.2 mm (in air)
• Image circle (像面大小): Ø6.9 mm (MAX)
• Lens structure (镜片构成): 1G6P — note: if the first element is a plastic lens, wipe with alcohol only up to 3 times
• Mount (接口): M12 × P0.5
• Lens-to-base clamp torque (镜头与底座螺纹配合扭力): 60–600 gf·cm
• Minimum object distance (近摄距 / M.O.D): 2 m
• Resolution (解像标准): 3840 × 2160 (8MP)
• Suggested tilt tolerance of sensor packaging: ≤ 5' (minutes)
• Weight: /

Field of view (FOV) — sensor size / sensor dimensions (mm)

• 1/2.7" — 5.760 × 3.240 × 6.609
  • H / V / D (水平 / 垂直 / 对角): 88.1° / 47.5° / 104.1°
• 1/2.8" — 5.568 × 3.132 × 6.388
  • H / V / D: 84.6° / 45.9° / 100.0°
• 1/2.9" — 5.376 × 3.024 × 6.168
  • H / V / D: 81.3° / 44.3° / 95.5°

Optical characteristics (by sensor size)

• Optical distortion:
  • 1/2.7": -34.0%
  • 1/2.8": -32.0%
  • 1/2.9": -29.0%
• TV distortion (TVDistortion):
  • 1/2.7": -11.3%
  • 1/2.8": -10.4%
  • 1/2.9": -9.6%
• Relative illumination:
  • 1/2.7": 40.6%
  • 1/2.8": 43.0%
  • 1/2.9": 45.5%
• Chief ray angle (CRA):
  • 1/2.7": 11.2°
  • 1/2.8": 10.8°
  • 1/2.9": 10.5°

Operation

• Focus (聚焦): Manual
• Iris (光圈): Fixed
• Environmental & Safety (环保 & 安全): RoHS

Notes:

• The first optical element may be plastic; if so, clean carefully and limit alcohol wipes to 3 times.

specs

ref

• lens - tech