Overview
The Cognex DM300-LENS-10LL liquid lens kit delivers adjustable optical focus for Cognex DM300-LENS-10LL barcode reading systems. Cognex DM300-LENS-10LL is a precision optical accessory that replaces fixed-focus lenses in DataMan 300 series readers, enabling dynamic refocusing without mechanical adjustment. This kit includes a pre-focused 10.3 mm M12 liquid lens module, locking wrench, and installation documentation.
Key Features
- Electrically controlled liquid lens technology for fast, precise focus adjustments
- 10.3 mm focal length optimized for close- and medium-range barcode capture
- M12 lens mount with integrated locking mechanism for vibration stability
- No moving parts — eliminates wear and mechanical drift
- Pre-focused and ready to install; includes mounting wrench and assembly instructions
- Supports high-speed 1D and 2D barcode scanning in industrial automation applications
Technical Specifications
- Focal Length: 10.3 mm
- Lens Mount: M12 with locking mechanism
- Technology: Liquid lens (electrically adjustable)
- Accessories Included: Pre-focused lens module, locking wrench, mounting instructions
- Product Type: Fixed-mount optical lens kit
- Compatible Series: DataMan 300
- Weight: 0.86 lbs
- Certifications: UL/cUL listed (UL60950-1, CSA C22.2), Class 2 laser certified (IEC60825-1)
Typical Applications
The DM300-LENS-10LL liquid lens kit is ideal for:
- Industrial barcode reading where working distance varies or requires frequent focus adjustment
- High-speed 1D/2D barcode scanning in manufacturing, logistics, and quality control
- Fixed-mount reader installations requiring dynamic focus without mechanical repositioning
- Production environments where vibration or thermal drift would affect fixed optical focus
- Applications requiring precise image capture for consistent barcode decode performance
Compatibility & Replacements
Compatible With
- Cognex DataMan 300 series fixed-mount barcode readers
- DataMan 300 hardware with M12 lens mounts
- Ethernet and EtherNet/IP integration networks
- Cognex EasyBuilder software (DataMan 300 configuration)
- Industrial automation systems requiring GigE or Ethernet barcode input
Replaces / Drop-In Replacement For
- DM300-LENS-16 (16 mm M12 fixed lens)
- DM300-LENS-25 (25 mm fixed lens with spacer)
- Other non-liquid DataMan 300 lens modules where adjustable focus is required
- Verify lens mount compatibility with your specific DataMan 300 reader model before ordering
Works With
- Cognex EasyBuilder software platform
- DataMan 300 series firmware and operating software
- EtherNet/IP and standard Ethernet networks
- All standard 24 V DC power supplies used with DataMan 300 readers
- M12 lens accessories, covers, and filters from Cognex












