I thought I'd explain it in photos. Lie an idiot I did it with the panny which means these are approximations! Doh!!
I hoped these show how larger f stops give less depth of field and more out of focus blur (or bokeh!). f7.1 is smaller than f2.8
So this is approx f7.1
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approx f4 you'll notice how less distinct the background is.
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This is approx f2.8, unfortunately the sun was so bright I couldn't get the exposure right. But the depth of field is slightly less defined again.
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Hope that makes it clear Trev!
I'd have liked to shown larger apertures but I was already at shutter speeds of 1/4000 of a second the pannies limit! I should have used the d300!!
4 comments:
Thanks Pete, makes a lot more sense seeing it like that Pete, cheers :D
Oh Dad, Poor Dad...
uh second anony, what what!
It can depend on camera and lens as well. I was trying to get bokeh and nice blurred backgrounds with my Canon and its standard lens, and didn't have much joy. But when I got the new zoom lens, I got better bokeh effects (sometimes without meaning to...)
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