User guide

Quantity One User Guide
3-4
3. Select the output.
3.2 Step I. Position Gel
The Gel Doc window will open in “live” mode, giving you a live video
display of your sample. In this mode, the Live/Focus button will appear
selected, and frames will be captured and displayed at about 10 frames per
second, depending on the speed of your computer.
You can use live mode to zoom, focus, and adjust the aperture on the camera,
while positioning the sample within the area.
Note: Newer versions of the Gel Doc feature a motorized zoom lens that can be
controlled directly from the acquisition window using the Iris, Zoom, and
Focus arrow buttons. Click on the Up/Down buttons while viewing your
sample in the window to adjust the lens. These buttons will not be visible
if you are connected to older versions of the Gel Doc without the
motorized zoom lens.
Fig. 3-3. Newer Gel Docs feature camera control buttons in the acquisition window.
You can also select the Show Alignment Grid checkbox to facilitate
positioning.
The image should stay in focus while zooming. If focus is not maintained,
refer to your Gel Doc hardware manual.
Note: After positioning your sample, you should check the Imaging Area
dimensions under Options (see below) to make sure that they conform to