Hello, On all the realsense cameras, which is the one that gives the best precision for capturing objects at a distance between 30 and 50 cm of the camera?

[Alexandra_C_Intel]

Hello ECosn1, Thank you for your interest in the Intel RealSense products. Normally, the depth sensor from the RealSense D400 Series cameras is set to generate depth for objects at distances ranging from minZ-to-infinity. MinZ represents the minimum distance at which the camera can detect depth. At longer range, the depth accuracy will drift noticeably after 3 to 4 meters away from the camera. This is called RMS Error. This thread https://forums.intel.com/s/question/0D70P0000068rTmSAI/fluctuating-and-unstable-depth-stream-from-intel-real-sense-d435#559606 has a chart that shows RMS error over distance for the D415 and D435 cameras. The D415 camera is better suited for scanning objects at longer distances. Please review the Best-Known-Methods for Tuning Intel® RealSense™ D400 Depth Cameras for more guidance on how to increase depth accuracy. https://www.intel.com/content/dam/support/us/en/documents/emerging-technologies/intel-realsense-technology/BKMs_Tuning_RealSense_D4xx_Cam.pdf Regards, Alexandra

[MartyG]

Both the D415 (minimum depth sensing distance 0.3 m / 30 cm) or the D435 (minimum depth sensing distance 0.2 m / 20 cm) could meet your needs for a minimum distance of 30 cm. At this short distance, there should not be much difference in depth accuracy between the two models. The D415 can provide better image quality than the D435 though.

The main reasons to go with the D435 would be if you had to track a large object (the D435 has a larger field of view) or if the object being observed was in motion (the D435 has a faster shutter than the D415 that copes with tracking motion better than the D415's slower shutter).