Originally posted by rparmar What don't you understand about the articles I have been referencing, or the ones those in turn reference? Or perhaps you don't understand the very concept of referencing, which is to provide support for an argument without having to write it all out again for the hard of thinking?
I understand things perfectly well.
Originally posted by rparmar In optical terms the amount of luminous flux incident on the sensor per unit area is the illuminance. In photography we measure that by the f-stop, standardised across lenses and systems, so that f/2 is the same on the Q or any other camera. (I omit consideration of transmittance since everyone outside of cinema does the same, even though this is, in point of fact, inaccurate.) Total light captured is hence the sensor area multiplied by luminous flux as measured by f-stop. So a larger sensor captures more light, as I claimed.
If i put things mildly for you- you lack common sense. You keep blabbering about how light falling on larger area is and etc. Specially this : "Total light captured is hence the sensor area multiplied by luminous flux as measured by f-stop"
You keep forgetting a simple fact that - light captured by sensor is not same as light falling on it. To make things even bad you do not even understand that light captured by sensor is on mercy of technology involved. This is why there is difference between performance of sensors of same size. So a sensor in k20d with is old and not by same sensor technology is very likely to behave differently.
Further it is too difficult for you to understand that this sensor in 'toy camera' (as you love to call) is BSI sensor. It collects 20% extra light compared to normal sensor of same size.
All these factors are too diffcult for you to understand.
Originally posted by rparmar Nowhere did I say that "k20d is 2 stops better than Q" [sic]. The post you quoted was correcting poor understanding of crop factor and focal length equivalence, as it makes explicit.
Oh you did, here.
Originally posted by rparmar So my K20D is about four times more effective at capturing light than this toy camera.
Saying that it is four times more effective at capturing light is same as saying it is two stops better performance. If you can not understand what you are writing , take a print of this statement and ask someone who understands English well.
So still your talk is cheap. Back up what you say by ""by detailed articles and evidence from optics and engineering." I am waiting. Where are those
detailed articles and evidence you love to boast about.