We are considering removing imager size and focal length from the calculator.
The two main reasons:
- The results of entering these inputs are often wrong, i.e. imager size and focal length frequently do not match the actual cameras' HFoV (because of how the manufacturer uses the sensor, lens, etc.)
- We have the actual HFoV for 5,400+ models (and growing) inside the Calculator for members to pick from.
The reason why imager size and focal length are there is that, in the old days, lens were frequently sold separately from the camera, ergo you had to enter these parameters in. Today, overwhelmingly cameras ship with integrated lens and therefore the HFoV is known and verified by the manufacturer.
Moreover, we are imminently going to make it a lot easier to submit new models to be added. When a user enters a model name and it is not found, we will provide a link to automatically submit that for entry. Expect that next week.
As for these fields, vote and comment inside.