I know that the MTF of an entire imaging system can be modeled by multiplying the MTF of each component (possibly because multiplication in spatial frequency domain is convolution in space?)
So, let's say I have an imaging system with an MTF50 of
x and I have a lens with MTF50 of
y. Is the MTF50 of the entire imaging system necessarily
xy? Could I in theory increase the MTF of an existing imaging system by adding a lens with a different MTF in front of it?
Sorry if this question is poorly worded - still learning about all of this fits together!