Wide Angel Lens - Optical Lens

• After-sales Service: One Year
• Warranty: One Year
• Usage: Lighting, Medical, Optical, Photography
• Type: Wide Angel Lens
• Transmittance: >95%
• Shape: Single-lens
• Model NO.: WT304.8B/1.0
• Material: Optical Glass
• Lenses Color: Clear
• Certification: RoHS, ISO9001, CE
• Customized: Non-Customized
• Coating: HMC
• Principle: Optical Glass
• Transport Package: Carton
• Specification: 85.6g
• Trademark: raytek
• Origin: China

Product Description

Optical performance	Parameter	Comments
Focal Length	4.8mm
F/#	1.0
Transmission	87%	8-12μm, average
Waveband	8-14μm
Mechanical performance	Parameter
Lens Control	Manual control	Upon Request
Focus Range	0.2m-∞
Interface Means	source nipple	Upon Request
BWD	7.5mm	Back Working Distance
Distance at the back	14.5mm
Dimensions	Φ49mm, L37.9mm
Weight	85.6g
Sealing	IP67(front)	Front lens
Lens front film layer	DLC
Applied environments	Parameter
Working Temperature	-40ºC ~ +60ºC
Storage Temperature	-45ºC ~ +65ºC
Dectector and FOV	Parameter
FOV 1	Detector 336*256 - 17μm, FOV 61.5° * 51.7°
FOV 2	Detector 384*288 - 17μm, FOV 76.8° * 58.1°
FOV 3	Detector 384*288 - 25μm, FOV 109.2° * 84.2°
FOV 4	Detector 640*512 - 17μm, FOV 140° * 94.5°

Wide-angle lens is a kind of photography lens whose focal length is shorter than the standard lens, the Angle of view is larger than the standard lens, the focal length is longer than the fisheye lens, and the Angle of view is smaller than the fisheye lens. Wide Angle lens is divided into ordinary wide Angle lens and ultra wide Angle lens.

The focal length of a common wide-angle lens is generally 38-24 mm, and the Angle of view is 60-84 degrees. The ultra-wide Angle lens has a focal length of 20 to 13 mm and a viewing Angle of 94 to 118 degrees. Because the focal length of the wide-angle lens is short and the Angle of view is large, a large area of the scene can be shot in a short shooting distance range. Wide-angle digital camera lens focal length is very short, the Angle of view is wide, but the depth of field is very deep, more suitable for taking photos of large scenes, such as architecture, landscape and other subjects.