VWR Gel Documentation Imager2 Instruction Manual page 50

With Focus control selected
the / buttons.
With Iris control selected
/ buttons. As the Iris control is changed, the numbers (expressed in 'f' numbers) in the box above the
slider bar change. The aperture numbers (f numbers) are counterintuitive, smaller numbers represent larger
aperture openings, larger numbers represent smaller aperture openings. The aperture opening controls the
amount of light that passes through the lens to the sensor. Larger aperture openings (smaller f numbers)
will result in shorter exposure times and smaller aperture openings (larger f numbers) will result in longer
exposure times.
With Zoom control selected
allowing the User to concentrate on a smaller area of the sample, maximising resolution. This control works
by selecting the \
Select the Camera resolution that you want to use to capture your sample image.
11.
The Binning function is a way of improving image capture times. By combining the outputs from
adjacent pixels on the image sensor, in square groups, e.g. 2 x 2, 3 x 3, 4 x 4, etc, the pixels are
effectively enlarged while being reduced in number. This provides faster image capture, due to
the reduced number of data reading operations required, improved signal to noise ratios, but
reduced spatial resolution, i.e. 2 x 2 binning on an 8 MP sensor effectively results in a 2 MP
sensor with pixels four times the size of the 8 MP sensor pixels.
Select the Binning button and select the binning ratio you want to use from the drop-down list.
12. You are now ready to capture your sample image. You have two options; to let the Gel Doc
image capture program set the exposure time automatically, or, you set the exposure time
manually.
MANUAL CAPTURE - SINGLE IMAGE WITH AUTO EXPOSURE
11a.
Select the Auto Capture button
The Gel Doc image capture program will decide the best exposure time for the settings you
have entered. This time will appear in the Exposure function in the right hand pane. The Auto
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, the focal plane of the Camera can be moved up/down by selecting
, the aperture or shutter opening of the Camera can be by selecting the
, the physical position of the sample relative to the camera is changed,
buttons.
BINNING RATIO DROP-DOWN LIST
.
Instruction manual VWR
®
Imager2