Why not a 12-35 F1.8 - F2.8?

Started Apr 2, 2014 | Discussions thread
Sergey_Green Forum Pro • Posts: 11,011
Doing so, huh ..

JeanPierre Martel wrote:

However the DoF is shallower on a FF camera. In order to get the same (larger) DoF as the one we have on a m4/3 camera, the FF user has to close the aperture and consequently, use higher ISO value.

Does it mean larger sensor cameras are mostly used at higher than the typical mFT ISO's?

Doing so he won't necessary get more noise than the m4/3 user at F/2,8 but more noise than he would get using a lower ISO value on his camera.

That is true. But why is "doing so" necessary in the first place?

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- sergey

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