7
refocus (using the telescope’s focus
knob) if the focuser drawtube has
moved a bit inward or outward when
the camera was rotated.
The image can also be flipped in
horizontal or vertical by selecting
Video Capture Filter in the Options
menu and clicking on horizontal and/
or vertical checkbox (
Figure 8)
.
NOTE: The Special Effect, Face Tracking
and Face Effect options in the Video
Capture Filter are not used for Astronomy
purposes.
9. Select Set
Capture File
from the
File
menu and name your file including
the AVI extension name. IE mymovie.
avi. Click
Open.
10. Enter the amount of disk space to
allocate as a buffer for this data.
Movie files need a large amount
of disk space. Enter a value such
as 50 Megabytes or higher. Press
OK
. The size of the captured data
may be much higher than this value
depending upon number and size of
frames captured.
11. Select
Set Frame Rate
under the
Capture
menu. Check the box
Use Frame
Rate
and type 30. Press ok.
12. Select
Set Time Limit
under the
Capture
menu. Check the box
Use Time
Limit
and type 20. Press
OK
.
13. Select
Start Capture
under the
Capture
menu.
14. Press
OK
when you are ready to capture Images.
An AVI movie sequence of 600 frames (30 frames per second x 20 seconds) will
now be recorded.
The total number of captured frames is displayed on the bottom bar. If frames are
being dropped this will be displayed and the frame rate or resolution should be set
to a lower value to prevent this.
You have now taken your first images with the SSUEII! This simple method of
imaging is exactly how the camera is used to capture terrestrial subjects during
daylight hours. Close-up images of birds and other wildlife or faraway vistas can all
be obtained in this way with the SSUEII. Solar images can also be taken during the
day with an optional full-aperture solar filter over the front of the telescope.
Figure 8.
Changing image flip
via options->Video Capture Filter-
>Advanced Tab.
Figure 9.
The camera’s field of view
is comparable to a 5mm focal length
eyepiece. This example uses an Orion
ShortTube 80mm Telescope.