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Old 8th August 2019
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Beagletorque Beagletorque is offline
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Re: If Sensor Size Doesn't Matter, Why Buy a Bigger One?

It's mostly down to the physics of collecting photons. Just like collecting rain. You have 2 measuring tubes with the same with a scale on them, one has a 1 meter diameter funnel feeding it and the other funnel is only 6" in diameter. When you have a 2 minute shower the funnels collect the same amount of rain for their respective areas. One tube fills up nicely, the other has very little in it. You can calculate how many mm of rain fell with greater certainty for the larger funnel.
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