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The flexible SWIR solution


Key features of the Lens

  • SWIR (800-1800 nm) optimized
  • 43.2 mm max. sensor size
  • Focal length: 40 mm
  • Initial aperture: F2.8
  • Compatible to the V38-Mount System
CRYOLITE Lens F2.8 40 mm V-38

Our Cryolite lens

This compact SWIR lens with 43.2 mm image circle is designed for the 800 -1800 nm spectral range. With its robust mechanical design and a locking screw for the iris setting it maintains its high optical imaging performance even in harsh environment. A special SWIR coating and internal lacquering reduce stray light, resulting in high contrast images. The V38-Mount fits to the modular Unifoc system with its large variety of accessories, including focusing mounts, extension tubes and camera adapters.

Discover the compatibility of the CRYOLITE lens with top sensor brands
Check out the optimal sensor compatibility for the CRYOLITE lens. Our selection includes a variety of compatible sensors from leading manufacturers such as Sony, OnSemi, GPixel, Teledyne e2V, ams. Improve your imaging efficiency and accuracy with the ideal lens-sensor combination.




f' (mm)
Sensor Size
Size D x L (mm x mm)
Weight (g)
Filter thread
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The V38-Mount System for Our CRYOLITE Lens

The compact and robust V38-Mount System, consisting of Schneider-Kreuznach lenses in a special iris mount, focusing mounts, extension tubes and camera adapters. It is the best choice for larger image circles and flexible flange-to-image distances. The system can be adapted on many different cameras for industrial and scientific applications. For assembly in reverse position special adapters are available which can be screwed into the filter thread of the lens.

The V38-Mount System provides a uniform interface with three lock-screws that engage into a groove. This guarantees a stable and durable connection and makes it possible to use multiple combinations of the individual components.

The Components

Optical Filters

Optical filters help to improve optical quality. They are provided with detailed technical parameters and have passed a strict quality assurance procedure.


V38-Lenses (CRYOLITE)

The V38-lenses have a compact and robust metal mount, with precise irisadjustment and locking mechanism as well as a filter thread. With a special adapter the lenses can even be reversed for magnifying images.The lenses are available with focal lengths from 28 mm to 120 mm and coversensor diagonals from 30 mm up to 90 mm depending on the focal length. Their optical performance is optimized for typical working distances at machinevision applications.


Focussing Mounts

The V38-lenses have no built-in focusing mechanism. Therefore a separatefocusing mount is needed. Schneider-Kreuznach is offering three focusing mounts: UNIFOC 12 V38/V38 17.4-29.4mm, UNIFOC 7 V38/V38 20-27mm and UNIFOC 7 V38/M58x0.75 20-27mm.


Extension Tubes

The V38-lenses have no fixed back focal lengths and also cameras differ in theirflange-to-image distances. Therefore the extension length of the lenses must beadapted individually to the current image task. This is done by extension tubes,which can be combined in different lengths. They are installed between the lensand the camera. Six extension tubes are available, from 6 mm to 75 mm.

Extension Tube.png

Camera Adapters

Special camera adapters are available that connect the V38-Mount-Systeminterface to a variety of camera mounts. Types and extensions are shown below.


Compatible Products


CRYOLITE 2.8/40 V38 1063164    
UNIFOC 7 V38/V38 20-27mm 1001041 V38/V38 20-27 mm
UNIFOC 7 V38/M58x0.75 20-27mm 1054532 V38/M58x0.75 20-27 mm
UNIFOC 12 V38/V38 17.4-29.4mm 11726 V38/V38 17.4-29.4 mm
UNIFOC 5 V38/C 19.2-24.2mm 1011634 V38/C-Mount 19.2-24.2mm
EXTENSION TUBE V38/V38 6mm 20176 V38/V38 6 mm
EXTENSION TUBE V38/V38 8mm 20177 V38/V38 8 mm
EXTENSION TUBE V38/V38 10mm 20178 V38/V38 10 mm
EXTENSION TUBE V38/V38 25mm 20179 V38/V38 25 mm
EXTENSION TUBE V38/V38 50mm 20154 V38/V38 50 mm
EXTENSION TUBE V38/V38 75mm 20155 V38/V38 75 mm
ADAPTER V38/C 6.5mm 20052 V38/C-Mount  
UNIFOC 5 V38/C 19.2-24.2mm 1011634 V38/C-Mount  
ADAPTER V38/TFL 6.5mm 1098491 V38/TFL-Mount  
ADAPTER V38/L 6.5mm 20054 V38/Leica  
ADAPTER V38/M42x0.75 6.5mm 20053 V38/M42x0.75  
ADAPTER V38/M42x1 6.5mm 20059 V38/M42x1  
ADAPTER V38/M42x1 35mm 1001692 V38/M42x1  
ADAPTER V38/M58x0.75 10mm 1018385 V38/M58x0.75  
ADAPTER V38/F 9.3mm 21610 V38/Nikon  
ADAPTER V38/M37x0.75 3.5mm 1100587 V38/M37x0.75  
ADAPTER V38/M40.5x0.5 3.5mm 1100588 V38/M40.5x0.5  


Compatible accessories for the CRYOLITE lenses

List of accessories

Product Mount Length ID
UNIFOC 5 V38 / C 19.2-24.2 mm 1011634
UNIFOC 7 V38 / V38 20.0-27.0 mm 1001041
UNIFOC 7 V38 / M58x0.75 20.0-27.0 mm 1054532
UNIFOC 12 V38 / V38 17.4-29.4 mm 11726
UNIFOC 25 L / M42x0.75 18.8-44.5 mm 39549
UNIFOC 25 L / M58x0.75 18.8-44.5 mm 13048
EXTENSION TUBE V38 / V38 6 mm 20176
EXTENSION TUBE V38 / V38 8 mm 20177
EXTENSION TUBE V38 / V38 10 mm 20178
EXTENSION TUBE V38 / V38 25 mm 20179
EXTENSION TUBE V38 / V38 50 mm 20154
EXTENSION TUBE V38 / V38 75 mm 20155
EXTENSION TUBE M42x0.75 / M42x0.75 5 mm 1105879
EXTENSION TUBE M42x0.75 / M42x0.75 10 mm 1105880
EXTENSION TUBE M42x0.75 / M42x0.75 25 mm 41643
EXTENSION TUBE M42x1 / M42x1 5 mm 1105877
EXTENSION TUBE M42x1 / M42x1 10 mm 1105878
EXTENSION TUBE M58x0.75 / M58x0.75 10 mm 13051
EXTENSION TUBE M58x0.75 / M58x0.75 25 mm 13050
EXTENSION TUBE M72x0.75 / M72x0.75 5 mm 1072420
EXTENSION TUBE M72x0.75 / M72x0.75 10 mm 1072421
EXTENSION TUBE M72x0.75 / M72x0.75 25 mm 26406
EXTENSION TUBE M72x0.75 / M72x0.75 50 mm 1054733
EXTENSION TUBE M72x0.75 / M72x0.75 100 mm 1079483
EXTENSION TUBE M90x1 / M90x1 10 mm 1084875
EXTENSION TUBE M90x1 / M90x1 25 mm 1084876
EXTENSION TUBE M90x1 / M90x1 50 mm 1084877
EXTENSION TUBE M90x1 / M90x1 100 mm 1084878
EXTENSION TUBE M95x1 / M95x1 10 mm 1077290
EXTENSION TUBE M95x1 / M95x1 25 mm 1062892
EXTENSION TUBE M95x1 / M95x1 50 mm 1062893
EXTENSION TUBE M95x1 / M95x1 100 mm 1062894
EXTENSION TUBE M95x1 / M95x1 200 mm 1077291
ADAPTER C / M42x1 5.5 mm 1075817
ADAPTER TFL / M42x1 5.5 mm 1104101
ADAPTER V38 / C 6.5 mm 20052
ADAPTER V38 / TFL 6.5 mm 1098491
ADAPTER V38 / M37x0.75 3.5 mm 1100587
ADAPTER V38 / L 6.5 mm 20054
ADAPTER V38 / M40.5x0.5 3.5 mm 1100588
ADAPTER V38 / M42x0.75 6.5 mm 20053
ADAPTER V38 / M42x1 6.5 mm 20059
ADAPTER V38 / M42x1 35 mm 1001692
ADAPTER V38 / M58x0.75 10 mm 1018385
ADAPTER V38 / F 9.3 mm 21610
ADAPTER M42x0.75 / C 5.5 mm 41629
ADAPTER M42x0.75 / F 10 mm 21591
ADAPTER M42x0.75 / M42x1 9.5 mm 21592
ADAPTER M58x0.75 / M72x0.75 2 mm 13052
ADAPTER M58x0.75 / M90x1 4 mm 1084880
ADAPTER M58x0.75 / M95x1 4 mm 1062891
ADAPTER V70 / M72x0.75 10 mm 1072419
ADAPTER M72x0.75 / M42x1 6 mm 1079515
ADAPTER M72x0.75 / M58x0.75 6 mm 1075556
ADAPTER M72x0.75 / M90x1   4 mm 1084879
ADAPTER M72x0.75 / M95x1   4 mm 1077013
ADAPTER V90 / M95x1 10 mm 1077293
ADAPTER M95x1 / M72x0.75 6.6 mm 1077295
ADAPTER M95x1 / M90x1   6.6 mm 1084889
FILTER HOLDER M49x0.75 / 39 3.5 mm 1086400
FILTER HOLDER M62x0.75 / 37 4.5 mm 14604
FILTER HOLDER M62x0.75 / 50 3.8 mm 1099613
FILTER HOLDER M82x0.75 / 55 4.8 mm 1078041


Product features

Product sheet PDF


Download the CRYOLITE lens product sheet for details of the lens family. It provides a comprehensive overview of the features, specifications and capabilities of each lens in the family.


SWIR Lenses

CRYOLITE Lens F2.8 40mm V-38

SWIR lenses from Schneider-Kreuznach use the shortwave infrared spectrum to capture information that is not visible in visible light. This enables more precise material analysis, surface inspection and quality control in demanding industrial applications.

More information

Environmental Facts of the CRYOLITE lens

Our CRYOLITE SWIR lenses are tested to DIN standards to ensure they meet stringent environmental requirements. These tests check the durability of the SWIR lenses, their resistance to temperature changes and their ability to withstand shock tests and sinusoidal vibration. This ensures that the industrial lenses are up to the task in demanding industrial applications such as food sorting or solar cell inspection, providing consistent performance and reliability over time.

Slow temperature cycling

-25°C - +70°C
5 cycles a 12h

DIN ISO 9022-2-14-03 -1
Damp heat, cyclic

-23°C - +40°C
80% - 95% rel. humidity

DIN ISO 9022-2-16-01-1
Shock testing

50 g / 11 ms
18 shocks

DIN ISO 9022-3-30-06-1

Sinusoidal vibration

2 g
10-500 Hz

DIN ISO 9022-3-36-04-1

optical filters

By protecting the lens, eliminating unwanted wavelengths and enhancing contrast, optical filters can improve the image quality of your lens in industrial applications.



Maximise the potential of your industrial lens with our range of high quality accessories including camera adapters, extension tubes, filter holders and UNIFOC.


Overview of all Schneider-Kreuznach Products

Download our Product Brochure (PDF)

The interactive eBrochure includes all standard Industrial Lenses and Industrial Optical Filters currently available from Schneider-Kreuznach. 
Find all the important information about our products in one place. Search, compare and find the right solution for your needs. DOWNLOAD




Discover our range of SWIR lenses for industrial applications. Optimized for different sensors and working distances, these lenses deliver high quality images in demanding environments. These lenses are ideal for solar cell inspection, food sorting and machine vision.


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