20
Trouble Shooting
SLM9 User Manual v1.2
Setting the Lens Equation in
HemiView
If the Sigma EX DC 4.5mm fisheye lens does not appear in the standard list
of lenses installed with HemiView, you will have to enter the correct
coefficients in HemiView.
Create a new lens with the following settings: (
Settings
,
Lens
,
New
)
Enter the coefficients in the
Lens Properties
dialog as shown below.
Field of View (deg): 180.0
a1:
0.706900
a2:
-0.032900
a3:
0.025600
a4:
-0.021097
When you exit HemiView, this lens will be saved in the HemiView
lenses.csv file.
When using HemiView, specify these lens properties for all hemi-photos
taken with Canon EOS 50D or 60D cameras with a Sigma 4.5mm EX DC
lens.
60D
