Industrial cameras: lenses, shutters, interfaces, and lighting

Selecting a camera for a manufacturing robot cell begins with the smallest feature it must distinguish and the area it must observe. A larger megapixel number is not automatically a better purchase. Lens choice, exposure, illumination, timing, and data transfer all influence whether the resulting image supports the production decision.

Define useful detail and coverage

Draw the required field of view and identify the critical feature: an edge, hole, code, scratch, or part orientation. Include normal position variation and leave room for the mounting arrangement. Ask the supplier to show the feature clearly at the least favorable permitted position.

Cognex machine vision lens selection relates lens selection to working distance and field of view. Use those dimensions when comparing options, and include space for the camera, lens, connectors, and maintenance access. A camera that fits the image requirement but cannot fit the machine is not a complete proposal.

Hypothetical screening calculation: a 200 mm-wide view sampled across 2,000 pixels corresponds to 0.1 mm per pixel on a flat reference plane. This is a simple geometric estimate, not a claim of 0.1 mm measurement accuracy. Ask for a test of the actual feature, optics, and required decision before relying on that calculation.

Specify motion and exposure

Describe whether the object and camera move during acquisition. Include maximum expected motion and whether the machine can pause. Basler electronic shutter documentation explains that global and rolling shutters expose the sensor differently. Have the supplier select and test the shutter and illumination combination for your operating motion.

Compare images at production conditions rather than slowing the line for the demonstration. Check whether enough light is available for the required exposure without changing the process or introducing unacceptable glare. For robot handling, connect acquisition timing to the pick-and-place system requirements.

Make lighting a quoted component

Ask which light creates contrast at the feature of interest and how ambient conditions are controlled. The proposed setup should be documented with position, angle, intensity settings, and any optical filters. Include the replacement procedure so a failed light does not turn into an open-ended troubleshooting project.

Test with representative product finishes rather than one ideal sample. If metal reflections hide the feature, use the controlled trials in our shiny-metal imaging guide. Do not ask software to recover information that is not present in the image without first evaluating the optics.

Compare components fairly

EMVA 1288 camera characterization standard provides consistent methods for describing camera performance. Request comparable characterization information where available, and ask which settings apply to the quoted data. Keep application results separate from standardized component measurements.

Discuss image format, bit depth, frame rate, and bandwidth as a combined configuration. A supplier should demonstrate the chosen settings together. Include diagnostic recording in the test if it will be enabled in production; logging can change storage and transfer requirements.

Check interoperability and support

Confirm the operating system, SDK, driver, supported interface, and application integration. Our GenICam integration guide explains why an interoperability standard does not eliminate every compatibility question. Ask who validates upgrades and who restores the system after a replacement computer is installed.

Price the complete package: camera, lens, light, controller, cables, mounting, computer, software, and commissioning. Add a spare strategy and a defined method for verifying replacement alignment. Check whether a future product change needs only a recipe or also new optics.

Approve the camera after the system produces the required decision across the agreed sample set and operating range. The purchasing result should be an imaging setup that can be documented, maintained, and repeated, not an isolated camera chosen from a resolution table.

For manufacturers planning a FAIRINO cell, choose the camera and arm layout together. Use the FAIRINO robot catalog after defining the tool and carried load, then check that the proposed camera position remains usable during the robot sequence. Include illumination, mounting, cabling, and interface validation when comparing the complete project cost.

Request a FAIRINO automation quote with the required view, sample images, part movement, and transfer layout. Describe the production decision the camera supports so the proposal is based on the handling task.