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7
Advanced Photography
7.1.3
Alignment and focusing
In mosaic photography, align for anterior segment observation only, switch to retinal observation without changing the po-
sition of the instrument, check that the patient eye is correctly fixed; then, photograph.
However, when you see excessive flare during retinal observation, position the digital camera appropriately before photo-
graphing.
For mosaic photography, the alignment position in anterior segment observation appears in different positions as shown
in the figures below. Align appropriately so that the working dots fit within the anterior segment working dot position aids.
"FIX TARGET" appears at the lower right of the LCD monitor during retinal observation in order to indicates the eye fixa-
tion direction for a patient (the position of the internal fixation target from a patient).
Tell the patient the direction shown on the display and guide the patient's fixation.
Please note that some photographing parts may not clearly show the focus bars. In such a case, make macula in focus
and photograph other photographing parts without re-focusing. However you may re-focus when you can see the focus
bars clearly.
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