QHYCCD IMG132E - Manual (Page 6)

Double-click to select the location of the main interface of the preview bar needs to focus,
observe the value of Focus Aid, preview the images and the main interface of the box top
left of the preview bar, you can easily determine the focus is accurate.
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overlap with the next one . When red just overlaps green and green
just overlaps blue, that is the accurate white balance position.
Global white balance: Automatic white balance adjustment
can be made by clicking on the Color Balance Global WB button, the
software will automatically adjust the white balance.
Spot white balance: A single-point white balance. In some
cases, Global WB can not provide a good white balance correction,
such as a screen shot where the red channel accounts for most of
the image. Using the Global the WB, the software will automatically
adjust red resulting in gray instead of white. To avoid this from
happening, you can use a single-point white balance.
Click Color Balance, Spot WB button for the single-point white
balance function. The icon will have the shape of little hands, and the
WB button will turn blue. At this point in the real-time display screen,
double-click a location which should be gray (or white) on the screen.
The software will be able to calculate the white balance according to
the point RGB values, and that white balance value is then applied to
the whole image map.
2.3 focus aid
The Focus Aid contributes to a more convenient focus through two
methods: EZPlanetary's Edge command and FWHM command.
edge: After selecting the Edge button with the mouse, double-click
to select the Preview column normally used to focus a region. Edge
will show the portion of the focus box in much greater detail than is
shown on the main Preview screen and thus be more accurate. The
smaller value, the more accurate the target focued.
fwhm: Click on the button and with the mouse double-click to
select preview column normally used to focus. The top left of the
preview bar displays the FWHM value. The smaller value, the more
accurate the target focued. This function is available for camera
focus only in pure background with stars, but not for sun or daily
scene.
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