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0 pointsniccolove20d ago0 comments

And keep in mind crop factor applies to aperture too! A 50mm f1 on M43 in equivalent to 100mm f2.

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If you're thinking about the depth of field then yes. Exposure wise f1 is f1 no matter the sensor size.

I think that actually it applies to exposure too? Because a M43 sensor is going to be "half" the size of Full Frame, which means that the pixels will have 1/4 of the area, so you need 4 times the light to have the same amount of noise per pixel, i.e. two stops of light... but feel free to correct me here, I only have double checked the math on the depth of field part of it.

wao0uuno20d ago

Yeah kinda. Amount of light per area is the same but smaller sensors have smaller pixels that have worse SNR. This means the sensor receives the same amount of light per area but still needs to boost the signal more because of smaller pixels. I believe that if a full frame camera and MFT camera with the same pixel pitch and lens existed it would get exactly the same SNR and exposure. So basically with smaller sensors DOF is increased, exposure remains the same, SNR gets worse.

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wao0uuno20d ago

If you're thinking about the depth of field then yes. Exposure wise f1 is f1 no matter the sensor size.

niccoloveOP20d ago

wao0uuno20d ago

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