There's a great deal we can do now to fix convergence issues in post.
I also thought many of the titles looked good at the time, until I revisited them years later. After screening the 1950's titles (I had left/right 35mm prints of 30 features) I screened some of the single-strip titles.
Man, those things were tearing my eyes out! It's as if they had no idea how to shoot for 3-D and were learning as they went along. COMIN AT YA was one of the worst.
JAWS 3-D is pretty hard on the eyes as well.
For anybody that owns and wants to master 3-D titles for Blu-ray, we can fix 99% of the original issues with principal photography to maximize depth and minimize eyestrain.
Our proprietary stereoscopic restoration techniques can make any 3-D film look better than it ever has before.
Contact me via ThreeDarchive@yahoo.com.
If you see any instances of ghosting/crosstalk on your display, please note this is NOT an issue with the original photography, restoration, or 3-D Blu-ray authoring. Vintage stereoscopic movies have a much wider - and more natural - parallax, compared to most modern 3-D films which will exhibit fewer ghosting artifacts as a result of minimized depth. Many of the current active display LCD and LED 3DTVs do not meet cinema L/R cancellation levels and as a result, may exhibit "ghosting" with certain more demanding 3-D scenes. Passive polarized displays usually are closer or equal to having cinema grade cancellation levels, while DLP active display devices typically exceed 3-D cinema cancellation specs and are considered essentially ghost-free.