3D effect on old videofilmings

[old_tv_nut]

Regarding depth of field, I can testify from personal experience with the early HD cameras that accurate focus on a 7 inch viewfinder was nearly impossible. Sony made a great invention in focus peaking for the viewfinder, which makes the high frequencies light up brightly when the amplitude is maximum.

Cinematographers, however, still wanted less depth of field, as they were used to working with precisely calibrated lenses for which the focus could be set by actually measuring the distance with a tape measure and then dialing that in on the lens. An entirely different process from producing live video.

[Adlershof]

Originally Posted by old_tv_nut

Regarding depth of field, I can testify from personal experience with the early HD cameras that accurate focus on a 7 inch viewfinder was nearly impossible.

Similar experiences here in Germany. Suddenly "focus on the eyes" was relevant to TV studio production and frequently it could be seen, for those looking closely, how operators had to struggle on air until they got it.

Originally Posted by old_tv_nut

Cinematographers, however [...]

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And thank you also for your notes about IO colour cameras, they explained some observations I already made. Is it a correct impression that for these productions it was a strict rule to avoid any haloing, thus any lights and reflections in the picture?

[old_tv_nut]

Originally Posted by Adlershof

And thank you also for your notes about IO colour cameras, they explained some observations I already made. Is it a correct impression that for these productions it was a strict rule to avoid any haloing, thus any lights and reflections in the picture?

There was never enough headroom above "flat white," even with the special IOs, to avoid halos on jewelry and brass musical instruments. The main goal was to avoid colored halos from bright colored clothing, like bright red dresses.

There is even an internal CBS memo I have seen noting this problem with red clothing in the field sequential color system. I can't recall if it was posted on Videokarma somewhere.