Canon X-Loupe - Manual (Page 14)

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Canon Digital Camera Basic Setup – Micro-Photography Digital Magnification of X-Loupe
Suggestion: Turn OFF
Explanation:
In most cases, the purpose of micro-photography is to take
pictures on a specific part of a subject. If AiAF is turned off, the camera will
find its focus at a central AF (autofocus) frame, and the best focal distance
can be found by simply moving the camera up and down. The camera will
automatically find more than one focal positions while AiAF is turned on, but
some of the focal positions may not be necessarily wanted. Nevertheless,
AiAF can be utilized depends on the practical demand.
Suggestion: Turn OFF
Explanation:
AF-assist Beam is located at the front side of the camera, and
is used in the dim environment by pressing the shutter halfway. Since AF-
assist Beam is blocked by X-Loupe module and X-Loupe is equipped with its
own light source, AF-assist Beam should be turn off.
Suggestion: Turn ON
Explanation:
For inspection purpose, the bigger digital zoom you use, the
less picture quality you get. However, it helps users to view the subject in an
easy way. For micro-photography purpose, suggest to use optical zoom only
(i.e. 4.0X for IXUS 800IS/950IS) to have better picture quality. Then inspect
the digitalized picture with larger magnification on the PC monitor.
Suggestion: Set as desired
Explanation:
In some circumstances, it could help to decide the composi-
tion of an image with Grid Lines ON.
Suggestion: Hold
Explanation:
The micro-photography is utilized on the inspection and
photography of a tiny part of a subject; hence, the review of every picture is
very important. If the review is not set to Hold, pictures can only be inspected
or deleted after switching to Play Mode.
Camera Unit: X-Loupe G Series module + 150X objective lens + IXUS950IS
Monitor: ViewSonic VE720m 17 inch LCD
Monitor Resolution: 1024 X 768 dpi
Camera Recording Pixels: 2592 X 1944 dpi (5.2 mega pixels)
Optical Zoom: 4X
Subject: 1mm Ruler (The smallest scale is 0.25mm)
Camera Recording Pixels: 2592 X 1944 dpi
(5.2 mega pixels)The length of 1mm on the
picture showing on the monitor is 19cm→
Magnification = 190X
Camera Recording Pixels: 3264 X 2448 dpi
(7.99 mega pixels)The length of 1mm on the
picture showing on the monitor is 25cm →
Magnification = 250X
Camera Recording Pixels: 2592 X 1944 dpi (5.2 mega pixels)
Digital Tele-Converter: 2.0X
The length of 0.5mm on the picture showing on the monitor
is 19cm→Magnification = 380X
Camera Recording Pixels: 3264 X 2448 dpi (7.99 mega pixels)
Digital Tele-Converter: 2.0X
The length of 0.5mm on the picture showing on the monitor
is 25cm→Magnification = 500X
The digital magnification of X-Loupe is calculated based on 17 inch
LCD monitor with the resolution of 1024 X 768 dpi, and the digi-
talized picture displayed at 1:1 (100%) ratio. Please refer to some
tests shown below: