I can find the field of view for r200 but not sr300. Are they the same?
My research indicated that the focal length of the RealSense cameras need to be ascertained with scripting, and there is not a one-size-fits-all set of figures.
For SR-300, try using the instruction QueryColorFocalLengthMM. Intel support staffer David Lu said to somebody else that asked about focal length that this instruction does not work with R200, and for the R200 you should use QueryColorFocalLength (i.e without the MM on the end) instead.
Regarding field of view (FOV), David Lu states that for the R200, "The FOV is 77°x43°x70° (Cone) for color camera and 70°x46°x59° (Cone) for IR camera." An Intel PowerPoint presentation about the R200 backed this up.
There seems to be disagreement online about how to interpret the FOV for SR-300, with people giving different values. So I will post the FOV data from the SR-300 data sheet.
Thank you for your reply. That's very helpful.
Why do you say that there is not a one-size-fits-all set of figures. Will the focal length varies for different configurations?