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K2 Video Lens - Dual Port

See More by Infinity Photo-Optical Company
Stock #87-427
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Iris Option:
Variable 30 - 1.2mm
Length (mm):
Mounting Threads:
Ring clamp with ¼-20 tap
Weight (lbs):
Image Orientation:
Inverted (straight); Erect, right to left reverse (top dual part)
Long Distance Microscope
Primary Magnification PMAG:
Objective Required
Maximum Sensor Format:
35mm (43.3mm Image Circle)
Adapter Required
Dual Port
Depth of Field (mm):
Continuously Variable

Regulatory Compliance

RoHS 2015:
Reach 224:
Certificate of Conformance:

Product Family Description

  • Multiple Configurations for Video/Photo/Visual Applications
  • 3X Greater Magnification than Other Coaxial In-line Systems
  • Highest Possible Long-Distance Resolution
  • Focus from Infinity to 54mm
  • Supplementary Focuser Available for CentriTel™ Capabilities

Recognized as the standard in Long-Distance microscopes, the K2 DistaMax™ now incorporates a patent-pending IVS focus system, further improving what was already a top performer, and making the K2 DistaMax™ easier to use than previous models. To begin using the K2 DistaMax™, simply choose an objective for the front and a camera mount for the rear.

The K2 DistaMax™ offers high magnifications and a dynamic working distance range, covering all sensors up to 35mm (43mm diagonal) formats. The K2 DistaMax™ Single-Port package includes a manual iris for light level and depth of field control. The Dual-Port package includes a right angle mirror for switching between views (not simultaneous viewing), in addition to the parts included in the Single-Port package. The K2 DistaMax™ is ideal for applications ranging from remote vacuum chamber viewing to on-line process control.

The NWE Objective allows focus from infinity to as near as 675mm. Perhaps the most versatile K2 DistaMax™ objective, the NWE also can be used with the Microscope Objective Adapter Disc and other accessories. All objectives attach directly to a front dovetail. When combined with NWE Objective, Microscope Objective Adapter Disc, and Objective Adapter, the K2 DistaMax™ can interface common infinity-corrected microscope objectives, even when the Coaxial In-line Illuminator is used, making it a powerful direct coaxial in-line system. To enable CentriTel® for all formats simply add the CentiTel® Focuser, #87-430. For viewing through an eyepiece (not included), adapter #58-796 is required.

K2 Video Microscope System Components
Description Stock No.
Main Body One Required Video Lens - K2 Single Port #87-426
Video Lens - K2 Dual Port #87-427
Mount Adapter One Required C-Mount Camera Adapter #88-956
Nikon F-Mount Camera Adapter #42-835
62mm Eyepiece Tube (for viewing) #58-796
Amplifiers Optional CF Tube (1.66x) #65-041
DL Doubler Tube (2X Video) #39-686
Lockable Doubler Tube (2X Video) #57-714
NTX Tube 2X (Large Format) #86-892
Components Optional 10X Kellner Eyepiece #37-692
Centritel™ Focuser #87-430
Mounting Bar #86-888
Objective/ Objective Adapter One Required Near-Wide-Extreme Range
K2 Objective NWE #87-428
Standard Range
K2 Objective STD #39-339
Close-Focus Range
K2 Objective CF-1 #39-340
K2 Objective CF-1/B #57-721
K2 Objective CF-2 #39-341
K2 Objective CF-3 #39-342
K2 Objective CF-4 #52-829
High-Power Micro Range
K2 Microscope Adapter Disc #87-429
Mitutoyo/Achrovid Objective Adapter (M26) #53-787
Nikon CF160 Objective Adapter (M25) #54-589
Olympus UIS Objective Adapter (RMS) #53-786


K2 Objective Options (Main Body Required)
  NWE* STD CF-1 CF-1/B CF-2 CF-3 CF-4
Primary Magnification 0.12X - 0.6X 1.1X - 0.34X 1.28X - 0.61X 1.4X - 0.8X 2.67X - 1.52X 3.56X - 2.29X 6.1X - 4.57X
Field of View (½" sensor) (mm) 53.3 - 10.7 6.74 - 20.5 5.0 - 12.2 4.6 - 9.0 2.8 - 4.7 2.1 - 3.1 1.2 - 1.5
Numerical Aperture 0.006 - 0.028 0.051 - 0.02 0.088 - 0.036 0.083 - 0.049 0.136 - 0.099 0.2 - 0.156 0.204 - 0.172
Working Distance (mm) 675 - 3000 370 - 946 215 - 530 228 - 388 140 - 192 95 - 122 54 - 64
Size (Dia. x L) (mm) 58 x 53 58 x 53 58 x 65 58 x 53 58 x 41 58 x 68 48 x 54.7

*NWE Objective will focus to infinity.

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