Speed-booster style converters providing MFT FF equality?

Started Aug 26, 2013 | Discussions thread
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tpani
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Speed-booster style converters providing MFT FF equality?
Aug 26, 2013

The old (and very tired) story of smaller sensors vs. the 35mm film sized sensors is that small sensor = more noise, large sensor = less noise. Of course, now with the Metabones Speed Booster and other similar converters the story has changed, as you can have exactly the same amount of light (and the same DOF and whatever) on your small sensor as you can on your big sensor. The DOF and (theoretical best possible) noise primarily have to do with the properties of the lens being used! And the noise and DOF questions obviously are unrelated to the sensor size, and now this is there for all to see. (One just would need a converter with a bit more conversion ability to exactly match FF on m43, for example, but this is beside my point here.) Really, in my opinion, what is still missing, is dynamic range, but there are no known theoretical or technical obstacles for matching the dynamic range of any (e.g. FF size) sensor on a smaller sensor, so "sufficient" DR will be later achieved with smaller sensors, as they will be later achieved with bigger sensors. No difference there w.r.t. sensor size.

So couldn't we just start from scratch with a new narrative: small _lenses_, more noise, large _lenses_, less noise. Compact cameras have really small lenses. Medium format cameras have big lenses. (Although the current situation may still be that the medium format sensors are lagging behind so-called FF sensors, but this will of course change in the future.) Lenses for most other cameras are somewhere in between.

tpani

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