mac_mcatee

<p>Many thanks for both answers. I was concerned that the camera setting somehow electronically changed the result of the photo taken to reflect the f stop set on the camera body. Now I get it, I can ignore the camera setting and just get on with the lens setting when in the manual modes.</p>

<p>I am new to digital photography. Recently purchased a Canon Rebel T6. I have an assortment of older Pentax K lenses that I got from my father 30 or more years ago. I have adapters, Fotodiox with confirmation chips, to mount them on my Canon camera.<br> The question I have is about using them and what the F stop settings should be. Let's say the camera body display screen says the f stop is 20. I have a 50mm f1.4 lens on the camera. I can adjust the lens f number from 1.4 to 16. What do I do? Say I want to use a stop of 8. Do I change the f number in the camera to 8 and the lens number to 8? Do I set the camera to wide open, 1.4 and then use the lens f of 8? Does it matter at all what I have the camera set on since I am in the manual mode?<br> Just would like some input as to the two settings and if in manual mode what I should or shouldn't do.</p>