So, I'm trying to figure out what FOV I'd be getting on the Ursa Mini 4.6k Pro when shooting 3k anamorphic, as opposed to 4.6k spherical but I'm having a bit of a hard time trying to wrap my head around it all.
25.34mm x 14.25mm 4608 x 2592 4.6k - spherical - 1.77
16.89mm x 14.06mm 3072 x 2560 3k - anamorphic - 1.20
BMD doesn't list the sensor window size in mm when cropping in to the "3k" 6:5 anamorphic mode but based on the resolution chart that they provide and on the listed full sensor size, if my math holds up (I calculated that 1.5x is the difference between 3072 and 4608 and used it to scale down the sensor size), that would mean that there is a 1.5x magnification/crop factor difference between the two modes, right?
So for example: when using 2x anamorphics, where one would traditionally get something close to the FOV of a 20mm spherical when shooting with a 40mm anamorphic lens on S35, on the Ursa you'd be getting the FOV of a 30mm spherical due to the smaller sensor readout (20 x 1.5 = 30mm) when compared to the 16:9 - 4.6k open gate (shooting spherical), right?
Does this make any sense at all or is it a flaming mess?
Edited by Vladimir Cazacu, 20 December 2017 - 03:42 AM.