You're changing too many variables. The point was if a picture taken with a 45mm on a full frame camera would be different from a 30mm on a 1.5 crop camera. Taken from the same position I would say no.  12mm vs 8mm would be the same too.

The subject size on the sensor itself will differ, but when viewing the images, the subject will be the same because the sensor itself differ in size, thus eliminating the difference.

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