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Roll film formats were prior to 35mm ( which was a mighty revolution once it begat SLR's), and it was available in "Folding-cameras" for the consumer. The Twin Lens reflex with the waste-level finder was robust, expensive and popular with pros, since focussing was sharp and swift.... although pressmen could use the eye-level peephole and the ability to hold above yr hear while framing the subject.... =very useful for catching Politicos, or Actors that are trying to avoid the Pressmen.
The snag IMHO is that using cameras at waist-level gives a distorted view, except for Landscape; - in that you have to tilt the camera up to get head-room . . . not an issue for children / family-seated of course. Ideally portraits are taken with the lens close to the subjects eye-line level.
Many mirrorless and DSLRs have a screen that can be adjusted to suit a waist-level viewing, but it's not convenient, being pressed against you. Also, for action shooting using the camera at eye-level is probably faster - but I accept the idea that in crowds the photographer may go unnoticed with a waist-level stance..... Much the same applies to shooting movies, using a DSLR where you can appear to be adjusting the lens, or waiting for the crowd to clear.... when using a still-camera, in "movie" mode...
As with most camera-variants. . . we are restricted to the outpourings of a narrow band of "Focus-Groups" - that always appear to deliver the same verdicts . . . hence almost all cameras are near-enough the same. Brand-loyalty really only stretches to the lens-mounts.
As to medium-format film.... can't remember the last film I processed....but do have fond memories for my Mamiya 23 - which was a poor-man's Linhof - it shot 8 on 120 so was similar aspect to 35mm, but 6x the area, reducing film-grain....but suffered from limited lens range ( although my 50mm is 35-equiv to 25mm).....The arrangement of rangefinder was mechanically poor but the big issue was really expensive and small-aperture lenses.
Its saving grace ( very rarely used) was the film-back was mounted on Bellows, so you could skew the plane of focus . . . I used this once for a piano-keys shot..... but it not a technique available to DSLRs . . . and I do sometimes wonder why.....
The book "View-Camera-Technique" is a mine of information on Lenses and changes to the focal-planes, for special effects.
Nowadays, faults like "converging-verticals" can be fixed in software in moments . . . . but is not often seen in practice... I guess the surge in Public-produced pictures has lowered our perceptions of what "Quality Photography" really is . . . we are apparently so impressed with the cute and silly.
Cheers. |
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