![]() Anything that is at the same distance as your subject will appear sharp. In a regular lens, your plane of focus is parallel to your camera’s sensor. ![]() All without blurring out the other parts of the scene. You can have a focal length that runs through many different distances. But the perspective it offers is pretty close to what we see.Ī tilt shift lens opens up various other possibilities. They give you the ability to use different portions of the lens.Ī traditional lens doesn’t see exactly like the human eye. They give you a wider image circle than a traditional one.Įssentially, they are like a medium format camera. So what is a tilt shift lens? It’s a lens that can be tilted or shifted in a wide range of directions, relative to the image sensor. They can be quite pricey, but worth the investment if you need to use them often In fact, a lot of commercial food photographers rely heavily on a tilt shift lens. This will be approximately correct at normal distances.Commercial product and still life photographers use tilt-shift lenses all the time. So we’re asking people to think about the closest distance (tangent) between the middle of their lens and the desired focal plane. People don’t initially know at what tilt they will be (that’s why they’re using this calculator, after all), so they can’t directly measure the hinge distance, as that hinge location is determined by tilt itself. #Dual plane tiltshift lens how toThe explanation of how to measure distance is necessarily fudged a bit. Testing of the formula against table sources on the web failed to reveal any discrepancies between the calculated results or any of the tables of more than 1/20th of a degree. An exponential curve formula was found to that function, and the coefficient discovered (1/17.4755) baked into the algorithm above. All of these data were then averaged and a set of fitting curves generated. The formula used for the calculator was created by taking actual measurements of critical focus with three tilt-shift lenses available to Camnostic (a trio of older Canon TS lenses, including the 24mm, 45mm and 90mm) and comparing that to multiple tables on the web. We give the tilt degrees to two decimal places not because anyone is going to be able to set a tilt lens with that accuracy with current hardware, but because there may be future products that allow for digitally setting tilt. There are only so many tilt-shift lenses (although tilt-shift adapters are changing this), and – most importantly – these lenses can only tilt but so far. Notes on Calculator: The calculator above works for any focal length lens, and for any distance, but of course there are some physical realities that limit these ranges in the real world. #Dual plane tiltshift lens pdfThe Tilt-Shift Calculator Tilt Shift Calculator for Degrees Tilt Required Focal Length (mm)Ĭlosest Distance to Desired Plane (meters)Ī printable PDF of the tables, in both metric and in imperial units: Download
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