All this talk about "equivalence" is silly

Started Jun 10, 2011 | Discussions thread
Great Bustard Forum Pro • Posts: 42,053
Re: All this talk about "equivalence" is silly

Hashbaz wrote:

I think that this thread boils down to different way to define "equivalent".

option 1: "equivalent" means equivalent focal length (same field of view)

option 2: "equivalent" means equivalent photos (same FOV, DOF, noise, shutter speed)

I think that the OP was simply trying to say that using option 2 can be a bit confusing for new photographers.

P.S. Shouldn't option 2 also include same resolution, same tone curves and same color rendition?

h ttp:

  • Equivalence is a framework for comparing the IQ of different formats on the basis of five parameters (perspective, framing, DOF, shutter speed, and display size), which all directly relate to the visual properties of the final photo, and are independent of the technology. In addition, the same amount of light will fall on the sensor for Equivalent photos, which will result in the same image noise for equally efficient sensors.

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