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Cobra Series Fixed Focal Length Lenses Focal Length 8mm 100-∞ WD F2.8-F16 0.05kg

Categories	Fixed Focal Length Lenses
Brand Name:	OPT
Model Number:	OPT-COB0828
Place of Origin:	China
MOQ:	1 piece
Price:	Negotiable
Payment Terms:	T/T
Supply Ability:	Negotiable
Delivery Time:	7 work days at the soonest
Packaging Details:	Craft Box
Focal Length:	8
Aperture range:	F2.8-F16
Working Distance(mm):	100-∞
Filter thread (mm):	M27*P0.5
Image circle Ø (mm):	9
Back focal length (mm):	12.99 at WD100; 12.34 at ∞
Weight:	0.05
Resolution (µm):	2.2

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Company Info.

OPT Machine Vision Tech Co., Ltd.

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Cobra Series Fixed Focal Length Lenses Focal Length 8mm 100-∞ WD F2.8-F16 0.05kg

Cobra Series Fixed Focal Length Lenses Focal Length 8mm 100-∞ WD F2.8-F16 0.05kg OPT-COB0828

Product Features

◆ The cobra series fixed focal length lenses aperture F/# is F2.8-F16.

◆ Low distortion: TV distortion < 0.2%

◆ High Relative Illumination: Lens' main light angle <5°, matching with cameras enables to realize high evenness image.

◆ The working distance of the OPT-COB0828 is 100-∞.
◆ Suitable for image circle of 8mm sensor

◆ Filter thread is M27*P0.5.

◆ Focal length of cobra series fixed focal length lenses OPT-COB0828 is 8mm.

◆ Back focal length (mm): back focal length is 12.99mm when its working distance is 100mm; back focal length is 12.34mm when its working distance is infinity.

◆ Weight of OPT-COB0828 fixed focal length lens is 0.05kg.

◆ The resolution of cobra series fixed focal length lenses OPT-COB0828 is 2.2µm.

◆ TV distortion is less than 0.18% at working distance of 300mm.

◆ Magnification at MOD is 0.071X at working distance of 100mm.

◆ Chief Ray Angle is less than 5°.

Model Explanation

OPT-COB0828

OPT: Brand name

C: C-Mount

OB: Cobra series lenses

08: Focal length: 8mm

28: F#: 2.8

Specifications

Product Name	Cobra Series Fixed Focal Length Lenses
Model	OPT-COB0828
Focal Length	8mm
Aperture range	F2.8-F16
WD(mm)	100-∞
Filter thread	M27*P0.5
TV Distortion(%)	Less than 0.18% at working distance of 300mm
Back focal length (mm)	12.99mm when its working distance is 100mm 2.34mm when its working distance is infinity
Weight(kg)	0.05kg
Image circle Ø (mm)	9mm
Resolution (µm)	2.2µm
Chief Ray Angle	less than 5°
Magnification(x) at MOD	0.071X at working distance of 100mm

Resolution Comparison

Image taken via OPT-COB1620 Image taken via other lens

Application Examples:

Gauging for metal parts

Dimensions (mm)

OPT-COB0828

Product Tags:

1.56 index lens

0.4x super wide angle lens

1.67 hi-index lens

Cobra Series Fixed Focal Length Lenses Focal Length 8mm 100-∞ WD F2.8-F16 0.05kg

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