Ci Series Fixed Focal Length Lenses
Accessories
Description Stock No. Price
Locking Retainer Nut (M22 x 0.75) #89-944 £22.10
C-Mount to NF-Mount Adapter #89-945 £22.10
Focus Locking Screw
N
N
N
N
N
N
Max. Rear Protrusion (D)
26.5mm
N
N
N
N
N
N
Max. Overall Length (B)
4.5mm
C-Mount M22.0 x 0.75
Front Threading (A)
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fixed focal
length lenses
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UV / IR / SWIR
magnification lenses
M12 / S-Mount
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accessories
• Streamlined Mechanical Designs of our
C Series Lens
• Up to 7.5 MegaPixels, 2.8μm Pixel
Size Sensors
• 2/3", C-Mount Lens
Our TECHSPEC® Ci Series Fixed Focal Length Lenses
are a streamlined version of our C Series Fixed Focal
Length Lenses. They feature the same low lens-tolens
variation and broadband anti-reflection (BBAR)
coating for maximum light transmission, while offering
reduced weight and size. An adjustable, lockable
focus allows for setting and locking the best focus
position for instrumentation integration. The Ci Series
offers a wide range of aperture options, ensuring
maximum flexibility of resolution, throughput, and
depth of field. These compact lenses are designed
specifically for volume integration into applications
such as factory inspection and automation to benchtop
biomedical devices.
Max.
Front
Diameter
(C)
Dimensions Units: mm
Focal Length A B C D Filter Thread
3.5mm M50.0 x 0.5 39.38 50 10.73 M105 x 1.0 with required adapter #89-848
4.5mm M40.0 x 0.5 32.14 40 10.78 M58 x 0.75 with required adapter #87-425
6mm M34.0 x 0.5 47.8 34.0 1.17 M43 x 0.75 with required adapter #89-940
8.5mm M22.0 x 0.5 33.98 22.0 0.60 M30.5 x 0.5 with required adapter #89-932
12mm M22.0 x 0.75 29.0 22.0 0.96 M25.5 x 0.5 with required adapter #89-941
16mm M22.0 x 0.75 40.8 22.0 1.09 M25.5 x 0.5 with required adapter #89-941
25mm M22.0 x 0.75 29.9 22.0 1.33 M25.5 x 0.5 with required adapter #89-941
35mm M25.5 x 0.5 41.0 22.5 3.82 M30.5 x 0.5 with required adapter #89-942
50mm M30.5 x 0.5 49.5 30.5 2.06 M30.5 x 0.5 with required adapter #89-943
TECHSPEC® Ci Series Fixed Focal Length Lenses
Focal Length: 3.5mm 4.5mm 6mm 8.5mm 12mm 16mm 25mm 35mm 50mm
Max. Sensor Format: 1/1.8" 1/1.8" 1/1.8" 2/3" 2/3" 2/3" 2/3" 2/3" 2/3"
Horizontal FOV on 2/3" Sensor: – – – 128.6mm - 60.6° 80.9mm - 41.2° 61.4mm - 30.9° 35mm - 19.8° 22.1mm - 14.3° 42.8mm - 10.0°
Horizontal FOV on 1/1.8" Sensor: 41.2mm - 102.8° 72.0mm - 84.7° 110.2mm - 62.1° 101.0mm - 49.2° 65.8mm - 34.0° 50.1mm - 25.2° 28.5mm - 16.1° 18.1mm - 11.7° 35.0mm - 8.2°
Horizontal FOV on 1/2" Sensor: 34.1mm - 94.1° 61.9mm - 76.7° 96.8mm - 55.9° 88.3mm - 43.6° 58.3mm - 30.4° 44.5mm - 22.7° 25.4mm - 14.5° 16.1mm - 10.4° 31.1mm - 7.3°
Distortion: <24% <14% <7.5% <15% <2.5% <1.25% <0.7% <0.3% <0.2%
Working Distance: 0 - ∞ 25 - ∞ 75mm - ∞ 100mm - ∞ 100mm - ∞ 100mm - ∞ 100mm - ∞ 100mm - ∞ 250mm - ∞
Aperture (f/#) /
Stock No.
f/1.3 N/A N/A N/A #86-599 N/A N/A N/A N/A N/A
f/1.4 N/A N/A #86-591 N/A N/A N/A #85-355 N/A N/A
f/1.6 N/A N/A N/A N/A N/A #85-348 N/A N/A N/A
f/1.65 N/A N/A N/A N/A N/A N/A N/A #85-362 N/A
f/1.8 N/A N/A #86-592 #86-600 #86-607 #85-349 #85-356 #85-363 N/A
f/2.0 #87-545 #87-551 N/A N/A N/A N/A N/A N/A #86-614
f/2.8 #87-546 #87-552 #86-593 #86-601 #86-608 #85-350 #85-357 #85-364 #86-615
f/4.0 #87-547 #87-553 #86-594 #86-602 #86-609 #85-351 #85-358 #85-365 #86-616
f/5.6 #87-548 #87-554 #86-595 #86-603 #86-610 #85-352 #85-359 #85-366 #86-617
f/8.0 #87-549 #87-555 #86-596 #86-604 #86-611 #85-353 #85-360 #85-367 #86-618
f/11 #87-550 #87-556 N/A N/A #86-612 #85-354 #85-361 #85-368 #86-619
f/16 N/A N/A N/A N/A #86-613 #85-336 #85-337 #85-338 #86-620
Price £420.75 £420.75 £340.00 £250.75 £250.75 £250.75 £250.75 £250.75 £340.00
Call For OEM Quantity Pricing
Filter Adapters/Price #89-848 £38.25 #87-425 £38.25 #89-940 £26.35 #89-932 £26.35 #89-941 £22.10 #89-941 £22.10 #89-941 £22.10 #89-942 £22.10 #89-943 £22.10
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