Telezentric Zoom-Lens 0.25X to 0.5X.

The EHD-V7X is a bit of a „Swiss Army knife“ for machine vision because it bridges the gap between a standard macro zoom and a telecentric lens—two categories that usually stay in their own lanes.

Here is a breakdown of what those specifications actually mean for your application:

Dual-Function Design

The standout feature here is the hybrid nature of the optics:

Macro Zoom (0.07X – 0.5X): In this mode, it behaves like a high-quality close-up lens, allowing you to change the field of view without moving the camera.

Telecentric Mode (0.25X – 0.5X): This is the „secret sauce.“ Within this specific range, the lens becomes telecentric. This means it eliminates perspective error (parallax). If you are measuring the height of a component or looking into a deep hole, the objects won’t appear to „shrink“ as they move away from the lens.

 Optical Performance & Consistency

70% Relative Illumination: One of the biggest headaches in industrial imaging is „vignetting“ (dark corners). Maintaining 70% brightness at the corners is impressive for a zoom lens, ensuring your inspection software doesn’t struggle with shadow artifacts at the edges of the frame.

Sensor Compatibility: Supporting 1/1.1″ sensors up to 5 megapixels means it can handle relatively large sensors with small pixels. It’s a great match for modern CMOS sensors like the Sony Pregius series.

Mechanical Versatility

The physical adjustments on this lens allow for a very customized setup:

Massive Working Distance (182mm – 577mm): This provides plenty of „breathing room“ between the lens and the object. This is crucial if you need to fit lighting rings, robotic grippers, or safety shielding in between.

Manual Iris (F4.3 to F32C): By stopping down the iris (moving toward F32), you increase the Depth of Field, keeping more of a 3D object in focus, though you’ll need more light to compensate.