OK, still learning about depth of field (the distance that objects will be in decent focus). I took the following shots in order to test out and understand “Depth of Field” more. By adjusting the aperture to smaller sizes the depth of field increases… if I leave everything else the same. In the pictures below I only changed the aperture and you can see that as the f-stop gets higher, more light bulbs are in focus. The higher the f-stop, the smaller the aperture or size of the hole that lets light in. The f-stops are defined by the reciprocal or 1 over that number. So f/18 (or 1/18) is a smaller hole than f/5.6 (or 1/5.6), and it lets light in if you use the same shutter speed. The f/18 picture below is darker and sharper than the f/5.6 picture.
Canon EOS 7D with ‘EF-S 55-250mm f/4.5-5.6 IS’ at a 250mm FL from 3.1m away
Canon EOS 7D with ‘EF-S 55-250mm f/4.5-5.6 IS’ at a 250mm FL from 3.1m away
1 comment:
You know all that technical talk is mumbo jumbo to me, but I love the pics! We need some lights like these in our back yard!
Post a Comment