satmax
08.01.2009, 09:45
Schärfentieferechner (http://www.dof.ehost.pl/kmk_DoF/)fürs Nokia Handy (bei mir E-71). Ich finde das ist ein super Tool.
Beschreibung in englisch, Software auch in deutsch.
Hier ein kurzer Auszug aus der Original-Beschreibung:
The program is designed for Symbian phones with Series 60 v.3 user interface ("S60 3rd edition", i.e. for all Nokia N and E models, some other phones, too). It displays the DoF plot in three forms:
DoF as a function of distance
DoF as a function of aperture
"Intuitial" DoF as a function of distance
On the plot, the hyperfocal distance or aperture (i.e. the aperture at which the DoF reaches infinity) is marked with a dashed line and currently set distance or aperture with a red line. Of course, the program also shows the numerical information:
hyperfocal distance
DoF for currently set distance
DoF for the hyperfocal distance
blur of the background (at infinity)
DoF does not depend on the frame or sensor size. It does, however, on the blur circle (sometimes called circle of confusion). It defines how big blur can still be regarded as "sharp". Obviously, it depends on the ratio between the print and the frame sizes. For example, for 10x15 cm print made from 35 mm film (or so called "full frame" DSLR) the blur circle is typically 0.03 mm. However, if you increase the print size 4 times to 20x30 cm the acceptable blur will become twice smaller, i.e. 0.015 mm. On the other hand, if the print is typical, but the recording frame is smaller, the blur circle has to be decreased, too. For example, blur circle for a Canon camera with crop factor of 1.6 is 0.019 mm. In the program I have added 6 common values and assumed they apply for typical prints (about 10x15 cm):
Full frame or 35 mm film (blur circle = 0.03 mm)
Canon 1D (blur circle = 0.023 mm)
APS-C DSLR, for example Nikon, Pentax or Sony DSLR (crop factor = 1.5, blur circle = 0.02 mm)
Canon DSLR (crop factor = 1.6, blur circle = 0.019 mm)
Sigma DSLR (crop factor = 1.7, blur circle = 0.018 mm)
4/3s DSLR, for example Olympus E-series (crop factor = 2.0, blur circle = 0.015 mm)
Beschreibung in englisch, Software auch in deutsch.
Hier ein kurzer Auszug aus der Original-Beschreibung:
The program is designed for Symbian phones with Series 60 v.3 user interface ("S60 3rd edition", i.e. for all Nokia N and E models, some other phones, too). It displays the DoF plot in three forms:
DoF as a function of distance
DoF as a function of aperture
"Intuitial" DoF as a function of distance
On the plot, the hyperfocal distance or aperture (i.e. the aperture at which the DoF reaches infinity) is marked with a dashed line and currently set distance or aperture with a red line. Of course, the program also shows the numerical information:
hyperfocal distance
DoF for currently set distance
DoF for the hyperfocal distance
blur of the background (at infinity)
DoF does not depend on the frame or sensor size. It does, however, on the blur circle (sometimes called circle of confusion). It defines how big blur can still be regarded as "sharp". Obviously, it depends on the ratio between the print and the frame sizes. For example, for 10x15 cm print made from 35 mm film (or so called "full frame" DSLR) the blur circle is typically 0.03 mm. However, if you increase the print size 4 times to 20x30 cm the acceptable blur will become twice smaller, i.e. 0.015 mm. On the other hand, if the print is typical, but the recording frame is smaller, the blur circle has to be decreased, too. For example, blur circle for a Canon camera with crop factor of 1.6 is 0.019 mm. In the program I have added 6 common values and assumed they apply for typical prints (about 10x15 cm):
Full frame or 35 mm film (blur circle = 0.03 mm)
Canon 1D (blur circle = 0.023 mm)
APS-C DSLR, for example Nikon, Pentax or Sony DSLR (crop factor = 1.5, blur circle = 0.02 mm)
Canon DSLR (crop factor = 1.6, blur circle = 0.019 mm)
Sigma DSLR (crop factor = 1.7, blur circle = 0.018 mm)
4/3s DSLR, for example Olympus E-series (crop factor = 2.0, blur circle = 0.015 mm)