pwaring
Well-known member
Depth of field DOF is controlled by distance and aperture and to a less extent COC.
If you take the same image at the same distance and aperture and crop the wider one to match the the DOF will be the same.
The confusion comes because most people will move closer for the wider lens to get the same framing...![]()
If I take a 24mm lens and a 600mm lens and photograph a small bird at f4 at 5 metres then I'm expecting very little DoF on the 600mm and about 2.5m to infinity on the 24mm. If I had a crazy sensor where I could crop in on the bird and keep all the detail on the 24mm lens then I'm not going to suddenly have tiny DoF in the resulting image just because I've cropped in.
As said above, a DoF calculator confirms this.