...
Sony a9 iii | a2A5328-15ucPRO | ATL314S-CT | GV-77U5WP | SVS-Vistek shr661 | A7riv | |
focal length [mm] | 85 | 35 | 50 | 35 | 50 | 55 |
relative aperture for required depth of field [f/] | 20 | 10 | 13 | 11 | 11 | 13 |
absolute aperture [mm] | 4.25 | 3.5 | 3.85 | 3.18 | 4.55 | 4.23 |
pixel size [um] | 6 | 2.74 | 3.45 | 3.2 | 3.45 | 3.76 |
normalized incoming light per pixel bin | 100.0 | 83.4 | 78.3 | 94.0 | 109.3 | 92.9 |
Notes
We need more space because of increased image size
Focus
IPA template scripts to interface with the camera - Mikah Pinegar to look into that
Company to get back on sensor options
Any electrically adjustable lens? This doesn’t mean automatic focus regardless, these cameras don’t have auto focus
Process with manually adjustable lens:
Define at what distance we need the lens from the tallest plant - We can calculate this - The camera will be 1.5 to 2 m - We need to define the exact number
Technician enters average height of the canopy at the beginning of the run changes the Z axes according to the canopy height (estimate)
Set the focus at a range that gives us the biggest FOV, what distance from the plant that is
Practical aperture setting:
Minimum depth of field:
We want to not adjust the lens, the user just changes the Z axis
Can we achieve the lighting for this sensor? The one that Soren suggested is not in production anymore, we would have to get it second hand - Mark can build a flash for a later upgrade.
We need to be able to map out where the pots are