2.5.2 <camera> Section
The
camera
section contains
parameters describing
the
technical
specifications and the position of the camera when shooting the 360° spin.
You only need to specify these values if you are using the virtual
space, e.g. for hot spots.
For 2D zoom and spins without hot spots you can omit this
parameter group.
digitalCropFactor
Description
depends on the size of the optical sensor chip of the
camera
Syntax
float
Default
1.0
Context
FSI Viewer JS
The value depends on the size of the optical sensor chip of the camera.
For full frame cameras the value is "1.0". Common values are between 1.5 to
1.6. The crop factor is the same factor that affects the focal length of your
camera's objective. E.g. the focal length of an objective with a full frame camera
is 50mm. With a camera that has a crop factor of 1.5 the effective focal length
would be 1.5 x 50mm = 75mm.
Please note that for an accurate calculation the rounded figure (e.g. 1.5) is not
precise enough, since two to four decimal places are required.
In order to ensure an exact smooth video and hotspot implementation, please
do the following calculation for specific sensor dimensions of the camera used.
The size of the optical sensor chip can be found in the cameras technical
specifications.
2 FSI Viewer JS
NeptuneLabs - FSI Viewer
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