Sekonic SR-3500, Operating Manual, Page: 30 / 130

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Marking instructions
Marks readable by this device are as follows.
1) Mark size: 0.5 x 3mm or more (standard mark)
2) Readable writing instruments: pencils (black, HB or darker), ballpoint pens
(black or blue)
3) Readable marks:
4) Readable darkness: PCS 0.6 or darker
Readable mark darkness can be adjusted.
You can check mark darkness using a diagnostic utility included in the
package, so check the darkness of the marks you want to read and adjust
the reading setting.
S e e
“Data reading settings ■ Setting min. density Level”
in this manual on P.41
“Data reading settings ■ Setting density balance”
in this manual on P.42
Note)
When using a mechanical pencil, make sure to mark with adequate
darkness.
Marking instructions
(Good mark example)
(Bad mark example)
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