Using a Canon EOS T6s. I’ve been shooting all week with different ISO, aperture, and shutter speed in manual mode just fine. Pictures came out great. Today I turned my camera on to take a picture and it’s coming out extremely dark. I can shift back to auto and see that the exact same ISO, aperture, and shutter speed setting are applied and the picture is so much more crisp. I have no idea what I did to change this in manual mode. Advice? These two pictures for example. The warmer picture is in manual and the other much more crisp is in auto. Like I said, I’ve been shooting scenery outside this past week. Usually1/3200sec f/5.6 ISO 800 and photos were great
So for the two images I can see that one is warmer than the other. You mentioned the cooler one is crisper, I'm not exactly sure where you feel this way. Both images are phone images of screens of jpgs so its not the best way to compare images. That said I think they are similarly focused/sharpest near center by the pens/envelope edge. The warmer one shows more texture on envelope and that likely due to the envelope being angled slightly more parallel to camera. At 3.5 you will show fall off of depth of field faster than f8 so you don't have much in focus at 3.5 when this close to the objects. Also at 1/30 of a second you can introduce camera shake into the image if not on a timer/tripod or using image stabilization (you should do IS while hand holding at slow speed, if camera is still it can add shake). Usually1/3200sec f/5.6 ISO 800 - So for these likely you don't need anything near as fast as 1/3200 you could move your ISO down to 100 or 200 and get less noise. if you want more in focus stop down to 8 or 11 or even further. As long as your shooting 1/100 or faster (i don't know the lens you have so this is a ballpark estimate on speed) I would not worry about the shutter speed. Manual or auto use the same meter so that is why you get basically same setting. Shifts in color would be the Auto White balance reading lighting differently, and softness would be attributed to focus or shutter speed.
