Hi, I just wanted to get someone to confirm this. I have a micro 4/3rds camera and when people talk about the camera/lens they sometime say about 35mm equivalents. Since the sensor is a quarter of full-frame it has a 2x crop factor. (I understand that if a m43 lens is 20mm then it is 20mm but if you wanted to compare to full-frame it would be 40mm equivalent). I have an adapter and use an an old film camera lens which is 50mm. This would however give a 100mm field of view because the sensor will not be receiving all the light coming through the lens, since it is smaller than what that lens was designed for, and therefore it is cropped. So my question relates to APS-C lenses. Like I say most people always compare to full-frame, but it would be wrong to use those equivalents for an APS-C only lens? If my understanding is correct then I am right, but would like someone else to confirm or reject this. I have read somewhere that the difference of m43 and APS-C sensors is about 1.25 so using that, if I got a lens only for an APS-C sensor that was 50mm then the field of view I would get is 62.5mm?