[quote name='Klaus' date='16 June 2010 - 12:17 PM' timestamp='1276683441' post='558']
I do never set infinity focus on an ultra-wide. That's a waste of DOF.
[/quote]
[quote name='wim' date='16 June 2010 - 12:25 PM' timestamp='1276683917' post='560']
I agree 100%. DoF isn't infinite, after all, not even with UWAs or fisheye lenses ...
[/quote]
I do more or less always use infinity ... if there is something in the frame that needs
infinity-focussing ... if that is not the case, I focus on the item that is furthest away.
For a good description, search the web for Harold Merklinger and depth of field ...
or have a look here ...
[url="http://jimdoty.com/Tips/Depth_of_Field/More_DOF/dof_merklinger/dof_merklinger.html"]http://jimdoty.com/T...merklinger.html[/url]
and here ...
[url="http://www.trenholm.org/hmmerk/DOFR.html"]http://www.trenholm....mmerk/DOFR.html[/url]
for me, this approach works visibly better than the hyperfocal distance approach
that you two seem to use.
just my 2cts...Rainer
I do never set infinity focus on an ultra-wide. That's a waste of DOF.
[/quote]
[quote name='wim' date='16 June 2010 - 12:25 PM' timestamp='1276683917' post='560']
I agree 100%. DoF isn't infinite, after all, not even with UWAs or fisheye lenses ...
[/quote]
I do more or less always use infinity ... if there is something in the frame that needs
infinity-focussing ... if that is not the case, I focus on the item that is furthest away.
For a good description, search the web for Harold Merklinger and depth of field ...
or have a look here ...
[url="http://jimdoty.com/Tips/Depth_of_Field/More_DOF/dof_merklinger/dof_merklinger.html"]http://jimdoty.com/T...merklinger.html[/url]
and here ...
[url="http://www.trenholm.org/hmmerk/DOFR.html"]http://www.trenholm....mmerk/DOFR.html[/url]
for me, this approach works visibly better than the hyperfocal distance approach
that you two seem to use.
just my 2cts...Rainer