Dec
07
Im using a red one with a 20mm lens to shoot a tracking shot for myself and am running into a big problem with my understanding of film backs and crop factors for sensors.
Say I shoot my footage at HD using my red. From what I understand the camera is essentially cropping the sensor to compensate for this. So if I want to enter my focal length into pf track, is it still 20mm (the focal length I used), or has the focal length changed since the sensor has been cropped?
Thanks in advance.
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