Read the entire 10 points – Top 3-D Myths – 3DFPF – 3-D Film Preservation Fund a tax exempt 501(c)3 non profit corporation

3D films of the 1950’s were viewed through red and green glasses
Not true. Except for a few short films presented in anaglyph form in the early months of 1953 (not widely seen), all of the features, shorts, and cartoons exhibited in commercial theaters from 1952 through 1955 were projected using polarized light. The glasses had colorless lenses exactly like today’s …

Does a 3-D film have to be shot twice in order to yield a 2-D version?
No. Contrary to the memories of some cast members of 2-D films, a 3-D film only need be shot with a 3-D camera to yield a 2-D print later. Simply put, …

The confusion may lie in the fact that a handful of early CinemaScope productions were shot in both the anamorphic CinemaScope ratio (2.55-1) and the standard …

3D glasses cause eyestrain/headaches

Not true. 3D glasses are passive, in that they do not DO anything except filter light, much as …
…for several reasons:

1. Improper camera 3D technique – This is especially critical in 3D films since the image is …
2. Improper projection technique – Keeping the projectors in correct synchronization and phase is critical; unfortunately, these standards were f…
   …was a big problem. It STILL is.
3. Eyes – We all see 3D differently. It is highly subjective. Roughly 10% of us cannot see 3D well, or at all, …
   …though this is fairly inconsequential compared to the other major issues.

The 3-D glasses were always made out of cardboard
Not true. This was true only initially in 1953. Once it was clear that there was a market for 3-D, the studios addressed the complaints about the problems with the cardboard frames by introducing plastic frames and even clips-ons for people who regularly wore glasses. And they were available for purchase in those times. …

3D Movies were “cheesy” exploitation films with lower string talent
Not true. Here’s a partial list of some big stars that appeared in front of the 3-D camera: John Wayne, Rita Hayworth, Kathryn Grayson, Howard Keel, Bob Fosse, Robert Mitchum, Linda Darnell, Jack Palance, Edward G. Robinson, Dean Martin, Jerry Lewis, Jane …

Great directors and cinematographers worked on these films, including …

3D Movies of the 1950’s were loaded with gimmicks to show off the process

Too many bad 3D movies killed off 3D in 1950s

3D Movies of the 1950’s were not in widescreen

3D films today are of higher technical quality than those of the 1950’s

KISS ME KATE and HONDO were shown mostly flat in their original engagements

DIAL M FOR MURDER was never shown in 3D in its original release

INVADERS FROM MARS and THEM were shot in 3D

Again, read the entire, interesting, unexpergated, article: Top 3-D Myths – 3DFPF – 3-D Film Preservation Fund a tax exempt 501(c)3 non profit corporation