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Forum: Pentax News and Rumors 06-20-2016, 08:24 AM  
Ricoh files a patent for a Pentax 35-80mm f/4 full frame lens
Posted By Fogel70
Replies: 147
Views: 15,025
But the fun thing is that you know this because you are fully aware of the equivalence between these two formats, and are aware of difference in equivalence on available equipment on both formats.

Equivalence is just something that every experienced photographer is so used thinking about that they are not aware of using it.
Forum: Pentax News and Rumors 06-20-2016, 04:42 AM  
Ricoh files a patent for a Pentax 35-80mm f/4 full frame lens
Posted By Fogel70
Replies: 147
Views: 15,025
Yes, equivalence is good for this too.

Capturing a images from the same spot pointed at the same spot with lenses using same FOV will capture equivalent frame regardless of sensor size. And if using same size on aperture, equivalent DOF will be captured. If also using the same shutter speed they will both capture equivalent noise levels if both images is captured with sensors of equivalent sensor tech. ;)
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