Hello folks, I am brand new to this forum. I am a new owner of a 300D Canon digital Rebel. I am certainly not new to photography but am nothing more than a hobbieist who is compositionally challenged. I hope I am not rehashing a question asked many times before but I have read through a lot of the posts with out having seen this question come up before: I understand the additional magnification that I will get by adding a 70-200 MM f4 zoom lens to my camera but I wonder if it will still be an f4 lens? With the smaller image sensor area will less light be “picked up” and reduce the speed of the lens? My little brain cant quite comprehend how this works but I am thinking it will stay f4.
Thanks in advance for your help!