Follow focus is to Hollywood, for HD-DSLR is to film­mak­ing, Intuitfocus HF-IF1 is the 5D of HD-DSLR fol­low focus­ing:

The IF sys­tem can be used on all DSLR cam­eras with lenses from 14mm to 600mm, includ­ing shoot­ing with Zeiss still or com­pact prime lenses. The IF sys­tem is easy to mount and is com­pat­i­ble with most lenses, and enables one to focus or to zoom pre­cisely and quickly with­out any cam­era shake.

This thing about focus­ing will go away if cam­era mak­ers solve the root prob­lem. SLR cam­eras are designed to cap­ture still pho­to­graph; our cur­rent focus­ing tech­nol­ogy was based on a two-decade auto-focus prob­lem, now that most DSLRs can also be used to shoot videos, a new auto-focus sys­tem is needed to solve this new problem.

Abstract: Detecting an object from the viewfinder, instead of snap­ping to a focused posi­tion, the sys­tem would iden­tify move­ments, and from the dis­tance, direc­tion, speed and sets of mov­ing pat­terns; cal­cu­late and pre­dict a focus­ing point that would be main­tained, and/or grad­u­ally shifted accord­ing to the posi­tion of the object and the camera’s film plane. Add to it, the exist­ing image sta­bi­liz­ing tech­nol­ogy, super-sensitive image sen­sor capa­ble of high-ISO & wide dynamic range light cap­ture — film­mak­ing will never be the same again.

Okay, that sounds like crazy sci-fi sen­sa­tion, but remem­ber a few decades ago when auto-focus, auto-exposure, hypersonic-wave focus­ing motor, were noth­ing but a dream? As many opti­mists would say, every­thing is pos­si­ble as long as we can imag­ine it.

Postscript: Now that we’re talk­ing sci-fi, has some­one devised a non-linear dig­i­tal image sen­sor that has “mem­ory”? A sen­sor that not cap­ture a sin­gle lin­ear moment of image, but record a non-linear mem­ory of the light itself? This would result in a truly RAW state so that the pho­tog­ra­phy can be done entirely post-capture — think of a dark­room enlarger but with mul­ti­ple neg­a­tive films with infi­nite com­bi­na­tions of ƒ stops.

It would com­pletely ruin the beauty of pho­tog­ra­phy, but it’s no crime to imag­ine for a bit, no?