Vigneting measured over 24 × 36 mm field (Nikon Z6II)
HFD measurement over the field of the IMX533 sensor (in arsec and in pixel)
NGC 884 - Altitude about 30° - Optolong IR-cut - Stack of 5 frames selected over a total of 30 frames - 500 ms exposure - 14 bit-acquisition
Theoritical spot diagrams
The radius of the field limited by diffraction is about 0.25°.