articles/Lens/shift-page6

The Shift and Tilt Lenses - part 6 of 1 2 3 4 5 6 7 8 9

by Mike McNamee Published 01/10/2014

The shift test set-up; the dog is more or less at the hyperfocal distance but was not impressed, being more interested in destroying Mrs Gallagher's arty branch

The diagram is accurately scaled and shows that the nearest spot on the scene that can be seen by the lens is just four feet away. Additional calculations also show that this is outside the depth of focus for a lens set at the hyperfocal distance. Focussing closer, to capture the near scene, would soften the far distance considerably.

The screen grabs of the images from the Nikkor 14-24mm f2.8 and the Samyang T-S 24mm are, for practical purposes, identical.

For this reason using the camera with tilt and in portrait mode can grab significantly more into the scene. Accordingly Paul set up his camera lower (2 feet high) in vertical format and set to work. With some help from Chica (see blog on back pages) we set up resolution targets right under the camera and also at a short distance away. As might be expected the tests demonstrated both the limits of untilted lenses and the benefits of tilt.

• The Shift and Tilt Lenses page 1
  
• The Shift and Tilt Lenses page 2
  
• The Shift and Tilt Lenses page 3
  
• The Shift and Tilt Lenses page 4
  
• The Shift and Tilt Lenses page 5
  
• The Shift and Tilt Lenses page 6
  
• The Shift and Tilt Lenses page 7
  
• The Shift and Tilt Lenses page 8
  
• The Shift and Tilt Lenses page 9
  

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