Front or rear shift for left right adjustment

[steveo]

Is there any advantage to one or the other? I understand my schneider sa 90mm doesn't have the greatest coverage so should I use front rather than rear shift?


I think this is a simple question but I couldn't find any thing on the search.

[Old-N-Feeble]

The only time movements make a difference regarding lens coverage is when using swing or tilt. Rear swing/tilt decreases need for large image circle but front swing/tilt increases need for larger image circle. However, front swing/tilt doesn't distort the image but rear swing/tilt does distort the image. In landscape photography I usually prefer rear swing/tilt but in architectural photography it's usually the opposite or, at least, it's a combination of the two.

[Vaughn]

It will not make any difference which standard you shift (assuming that no other camera movements are used).

If you have used some front tilt or swing, then perhaps it would be wiser to shift the back.

[Heroique]

Is there any advantage to one or the other?

Remember that front shift will change your viewpoint perspective.

Back shift will not.

Consequences, consequences...

[lfpf]

As H mentioned, front shift changes perspective/point-of-view and rear does not and simply shifts the image. The concerns are nodal point locations.

[Old-N-Feeble]

Front vs. rear shift or rise/fall are the same but opposite. However, front vs. rear swing and/or tilt are very different... front affects focus but rear affects distortion too.

[ic-racer]

Big difference. Front shift moves the "camera." That is, you will see things from a different angle. Rear shift does not move the camera, relationships between objects will not change.

[steveo]

But if you were to move the front very far to one side wouldn't you run out of image circle?

[Jerry Bodine]

But if you were to move the front very far to one side wouldn't you run out of image circle?

According to my Sinar literature, the SA 90 on 4x5 allows 33mm shift and 38mm rise or fall at f22/infinity, assuming a horizontal composition.

[Steve Goldstein]

But if you were to move the front very far to one side wouldn't you run out of image circle?

Yes, but that will also happen with the same amount of rear shift, assuming shift is the only movement you're using. In that regard there's no difference between front and rear shift. As others have noted, though, the point of view changes with front shift.

[steveo]

Yes, but that will also happen with the same amount of rear shift, assuming shift is the only movement you're using. In that regard there's no difference between front and rear shift. As others have noted, though, the point of view changes with front shift.

Yes of course it would. Thanks, sometimes it helps to have someone point out the apparently obvious.

Thanks folks much clearer now.