Hi everyone, im fairly new to photography and photoshop, im use raw when shooting with my camera its only a 10 megapixel not the largest, Anyway as im using raw i have to open it in photoshops camera raw i slightly adjusted the exposure not much i then click open and wish to just save and do no further editing, my file stared off at say 7.5 mb in raw and now once saved in jpeg its 1.7mb? can someone tell me why thats happened, what am i doing wrong.
jPEG is a lossy compressed format. That's all there is to it. You are not doing anything wrong, that's just how it is and most people want it that way.