CHINON ZOOM LENS Specifications Page 7

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NOTE: It is recommended when setting the auto-focus mode that apertures between F/4
- 22 are selected. For your convenience these lens opening are engraved in green. When
lighting conditions require larger lens openings we suggest checking the focus with the
focusing grid in the viewfinder. DO NOT cover the auto-focus windows with your
fingers. Otherwise, the lens will not focus properly.
MANUAL FOCUS:
Your Chinon auto-focus zoom lens can also be operated manually in the normal manner.
When the subject is located less than 1 M (3.3 ft.) you have to focus me subject manually.
When focusing manually, set the power switch to me "OFF" position.
The following subjects should be avoided when using your 50 mm AF lens in the auto
focus mode:
* Shiny subjects such as water surfaces or exterior of a car. Since the AF system sends
out a beam of infrared light, these surfaces will deflect the beam, resulting in improper
focus. These subjects can be focused either manually or by ensuring that the shiny
reflective surface is directly perpendicular to the infrared beam. You can manually check
the auto-focus operation in these situations by viewing the split image range finder.
* Subjects through a glass window. In most instances if the 50 mm AF lens is beyond 2
cm from the glass surface, the AF beam will not penetrate and incorrect focusing may
result.
* Non-reflectable subjects (smoke, fog, etc.) Just as beam of light from a flash light will
pass through these subjects, so will the infrared beam of your 50mm AF lens.
Should you have to take pictures under the above conditions, you may focus the camera
manually or estimate the camera-to-subject distance.
AUTO FOCUSING:
1. Set the power switch (on the back lens) to the "ON" position.
2. Look through the viewfinder and center your subject in the split micro prism center
spot. Set the aperture in accordance with the information obtained by the camera (fig. 7).
3. Depress the auto-focus button, me focus ring will rotate automatically until me subject
is in focus. When used with the Chinon CE-5 or CG-5 35 mm SLR cameras; operate the
film advance lever and depress the shutter release button hallway, the focus ring will
notate automatically to me correct focusing position (fig. 8).
4. The direction of rotation will be displayed on the focusing panel by a red arrow. When
me image is in focus, the in-focus LED on top of the auto-focus unit will light up and you
will hear a beep sound if the sound signal is set to me "ON" position.
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