Furthermore, Canon's IS system on lenses helps reduce the impact of vibrations, not exacerbate it as Nikon's VR systems do. The take-home? Canon has done an impressive job at minimizing the impact of the mirror and shutter actuation on image sharpness, both by redesigning the mirror mechanism, and by offering silent shooting and mirror-up pre-delay modes. sharpness cost is limited to affecting a relatively narrow range of shutter speeds. Canon has done an impressive job at minimizing the impact of the mirror and shutter actuation on image sharpness.
Live View offers an electronic first curtain that completely eliminates all potential sources of shake. Finally, Canon offers a number of drive options for helping control vibrations: mirror-up pre-delays, or 'silent shooting' mode which dampens the mirror mechanism for quieter, more vibration-free shooting - all at the cost of speed. We also took a look at the impact of optical image stabilization (IS) in lenses. We undertook a massive study to see how much such mirror and shutter shake affects image quality at a variety of shutter speeds across a number of cameras: the Canon 5DS R, Nikon D810, Nikon D750, and Sony a7R. High resolution DSLRs, and even mirrorless cameras like Sony's original Alpha 7R, have the potential for image shake from the vibrations induced by the mirror and/or shutter mechanism.
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