mrcharles wrote:I am in favor of camera shift and tilt and swing controls. A view camera is the tool of choice for critical architectural and product photography. With the use of shift, tilt, and swing you can control parallel line convergence, location of the horizon line, and the plane of critical focus.
The mathematics are simple (I believe it is under the "Scheimflug Principle" of photography)... but it does bring up a problem.
Vignietting can be a serious issue (especially with wide angle lenses) as you capture your image from the extremes of the image circle (by using shifts and tilts) created by the camera lens on the focal plane (as it is dimmer there..). So a "center-weight" filter would need to be a part of the formulation to compensate.
Yep, I have discussed that several times: A shifted cam will suffer from vignetting, and Maxwell has cos^4 vignetting (= aka natural vignetting, which is not depending on f-stop). No other lens errors are modeled, so it's actually pretty easy to do: Render a region off center with a leveled camery, and compensate the vignetting.
I still think that sunlight is more important though
Kabe
Maxwell Render Calculator 0.9.8 -
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