Quote:
Originally Posted by tifosikrishna As f number increases, the dof increases.So when you want everything from foreground to background to be in focus (as in land scape), you choose a higher f number or smallest aperture possible. But at the same time, if you choose very high f number, it might introduce diffraction.
Personally I think, f22 is not a bad choice, if you had had a tripod. |
But why go for F22!? It will cause softness of picture and actually spoil results
In a landscape you usually want things from about 3-4 meters away to infinity out of focus
For example F9 is a very sharp area for Canon kit lens(18-55mm).
Suppose I focus on an object 4 meters away at 18mm F9, Online Depth of Field Calculator tells me everything from 1.92 meters to infinity will be in focus
The hyperforcal distance is 1.92 meters.
Which means that if I focus at 2 meters or so, I will get focus upto infinity.
With F22 hyperfocal distance is 0.77meters, so if I focus at 77cm everything from 77cm to infinity is in focus. Now for a landscape, if everything after 2-3 meters is in focus, thats good enough!
No need to go to such apertures.
Moreover I could not understand whats RAW or JPEG got to do with it? |