And the amount of light that enters the sensor through the lens is insanely different. A couple of years ago I moved from a Canon G16 with a f/1.8-2.8 6.1-30.5mm (28-140mm FF eq) lens to a Olympus OM-D EM-10 with its pancake f/3.5-5.6 14-42mm (28-84mm FF eq) lens.
Long story short, the pancake gets almost 3 times as much light as the canon integrated lens, despite the higher f number, because of the areas and sizes involved on both. And if I had gone for an APS-C for FF camera, we'd be talking in the order of 5 to 10x more light (hence, better low light images, or the ability to use shorter exposures for the same results).
Phones f/1.8 cameras are great -- comparing to other phones. If you compare them to a camera (almost any camera), they're in trouble.
The factor is not directly sensor size but rather focal length of the lens. But with smaller sensors comes a smaller field of view on the same focal length, such that you need to reduce focal length to keep it the same. I think for phone cameras the factor is ~10x compared to 35mm sensors.
lostapathy|5 years ago
The amount of bokeh you get between the two sensor sizes, even with the same f/1.8, exposure, and ISO, is going to be vastly different.
dr_zoidberg|5 years ago
Long story short, the pancake gets almost 3 times as much light as the canon integrated lens, despite the higher f number, because of the areas and sizes involved on both. And if I had gone for an APS-C for FF camera, we'd be talking in the order of 5 to 10x more light (hence, better low light images, or the ability to use shorter exposures for the same results).
Phones f/1.8 cameras are great -- comparing to other phones. If you compare them to a camera (almost any camera), they're in trouble.
calaphos|5 years ago