The Genie GL6AHD is a 6mm 3MP F2.0 lens for a PCB camera with an M12 thread. 

Features:

• 3MP 6mm F2.0 Lens
• Fixed iris

Specifications:

• Weight - 0.01 kg
• Sensing Area - 1/27” CMOS, 1/3” CCD, 1/4” CCD
• Focal Length - 6.0mm ±5%
• Back Focal Length - 6.4mm ±5%
• F No. - 2.0
• Iris - Fixed
• TV Distotion - 1/27” CMOS – 4.8%
  1/3” CCD – 10.0%
  1/4” CCD – 5.4%
• Angle of View - 1/27” CMOS –
  64.3° (D) x 55.8° (H) x 32.1° (V)1/3” CCD –
  58.2° (D) x 46.3° (H) x 34.6° (V)1/4” CCD –
  43.3° (D) x 34.6° (H) x 25.9° (V)
• Focus Extent - 240cm~∞
• Lens Construction - 5 components, 6 elements
  (1 compensation glass 1.08T)
• Dimensions - 14.0 x 15.8 mm