against the future when (it is believed) more and more cameras will
be FX (full sized frames) or even larger. For me the difference in
noise and color between DX and FX cameras is dramatic enough
for me to prefer FX almost every time. The D7100, which is a DX
camera, is an incredible machine at an unbelievable price, and I
own one. But I use my D 810 (FX) almost all the time.
With mirror-lock-up, the mirror (2) flips up towards (5) well
before the shutter (3) opens.
Mirror-Up
When we look through the viewfinder of one of the better DSLRs,
we are looking through a prism at the level of the viewfinder that
reflects the subject image from a mirror at the level of the lens itself.
That mirror stands directly in front of the sensor, the same place
(sensor) that film used to be in the old days. Well, in order to take a
photo, that mirror has to be moved out of the way and at lightning
speed. DSLR cameras do this, but when the mirror is raised up
(mirror up) it can’t help but slap the top of the camera sending a