>>4244954>tight aperture (high f#)longer depth of feild (everything in focus) but you'll need a higher iso and longer exposure
>wide aperture (low f#)background and possibly some of the subject is blurry, low iso and faster shutter.
for landscape I'd use a low f. since I'll probably be focusing on infinity. iso around 400-800
I'd get a tripod for any exposure longer than 1/60.