4 ms·

Software can't fix a slow aperture.

• orbital-decay 5y ago
  Of course. But it can fix many artifacts like field non-uniformity and distortions (both spectral and spatial), which otherwise require more lens elements, precise production and exotic materials to fix. Software correction is typically slightly lossy, but it's a reasonable trade-off. Per-lens/per-body calibration extends this much more than it's currently possible with vendor-supplied profiles, but requires pretty complex and expensive gear.
• astrange 5y ago
  It can if the scene is willing to sit still. You can get rid of shot noise by fusing different exposures.