ASAHI PENTAX Z-70 Operating Manual page 51

Notes on Accessories
The following conditions do not allow autofocusing or
manual focusing which uses the in-focus indicator in
the viewfinder. Use the manual focus mode to focus on
the subject with the aid of a matte field surrounding the
autofocus frame.
а) When using special effect filters or "Magic Image
Attachment" or "Stereo Adapter".
b) When using Extension Tubes or an Auto Bellows for
close-up photography.
Note on the SMC Pentax Е SOFT 85mm f//2.8 lens
When shooting at a distance closer than approx. 1.5m
(4.9ft), set the lens to a manual f-stop setting between
£/2.8 and f//4.5. A smaller aperture (+,/5.6 to f//32)
may cause the autofocus system and the viewfinder's
in-focus indicator to malfunction. To remedy this prob-
lem, temporarily set the lens to #;^4.5. After focusing
on the subject, lock focus, and set the lens to the re-
quired f-stop.
Using Polarizing Filter
When using an ordinary polarizing filter; a half mirror in-
corporated into the autofocus system reduces the ef-
fectiveness of the autofocus function when used in
combination with an ordinary polarizing filter. Us
CIRCULAR POLARIZING FILTER for autofocus opi
tion.
SNO азо Ш