Spec Sheet

［
Lens Image
］
2.8mm
8mm
2.8
×
HD Vari-Focal (2.8 - 8mm)
YV2.8x2.8SR4A-2
For Security
Unit : mm
Applicable camera
(model)
1/ 3 1/41/22/31
YV2.8×2.8SR4A-2
Focal Length
（
mm
）
2.8 - 8 (2.8x)
Iris Range F1.3 - T360
Operation
Zoom
Manual
Focus Manual
Iris Manual
Angle Of View
(
H×V
)
1/2.7"
WIDE
112°33' × 81°21'
TELE 38°53' × 29°8'
1/3"
WIDE
100°34' × 73°22'
TELE 35°16' × 26°26'
1/4"
WIDE
73°22' × 54°18'
TELE 26°26' × 19 °49'
Angle Of View
(
H×V
)
Aspect Ratio
16
：
9
1/2.7"
WIDE
125°6' × 65°35'
TELE 42°23' × 23°47'
1/3"
WIDE
111°8' × 59°19'
TELE 38°27' × 21°35'
1/4"
WIDE
80°23' × 44°13'
TELE 28°47' × 16°13'
Focusing Range
（
From Front Of The Lens
）（
m
）
- 0.3
Object
Dimensions
at M.O.D.
(
H×V
) (
mm
)
1/2.7"
WIDE
917 × 525
TELE 226 × 166
1/3"
WIDE
737 × 455
TELE 204 × 151
1/4"
WIDE
456 × 314
TELE 151 × 112
Object Dimensions
at M.O.D.
(H×V) (mm)
Aspect Ratio 16:9
1/2.7"
WIDE
1181 × 394
TELE 248 × 135
1/3"
WIDE
895 × 348
TELE 224 × 122
1/4"
WIDE
517 × 249
TELE 165 × 91
Back Focal Distance
（
in air
）（
mm
）
8.49
Exit Pupil Position
（
From Image Plane
）（
mm
）
217
Filter Thread
（
mm
）
–
Mount CS
Mass
（
g
）
55
Remarks
•
With Metal Mount
Manual Iris
Aspherical
Lens
Vari-Focal
Wide Angle
CS Mount
Metal Mount
ND Filter
Large
Aperture Ratio
RoHS
Compliant