Functional diagram of the auto focus function, Diagram funkce automatického zaostrovani – Panasonic NV-RX70EE User Manual
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ENGLISH
Functional Diagram of the Auto Focus
Function
O Focusing Lens
© Signal Processing
© Focusing Lens Motor
0
CCD Image Sensor
© Microprocessor
© Picture Signal for
Recording
0
Finder Screen
© Focusing Lens
0
Image area on which the Auto Focus Function
adjusts the focus
When you aim the Movie Camera at the subject that you
want to record, the microprocessor determines (based
on the information about the vertical contours in the
picture signal received by the CCD Image Sensor)
whether the subject in the middle of the picture is
properly focused. If not optimally focused, it quickly
moves the focusing lens in tiny steps from the previous
focus setting © or
0
until the vertical contours of the
subject become sharpest ©.
•As this Movie Camera automatically adjusts the focus
based on the information on the subject’s vertical
contours, precise focusing is not possible for subjects
with weak vertical contours (-> 90).
• Unlike the human eye, the Movie Camera’s Auto Focus
System cannot change the focus from a distant to a
close subject instantaneously.
0
CCD obrazové cidio
О Mikroprocesor
© Obrazovy signal pro
nataceni
0
Obrazovka hledacku
CESKY
Diagram funkce automatického
zaostrovani
© Zaostfovaci соска
© Zpracovani signalu
© Motorek zaostfovaci
cocky
© Zaostfovaci соска
0
Cast obrazu, na kterou funkce automatického
zaostfovani zaostfuje
Pfi namifeni kamery na objekt, ktery chcete natacet,
mikroprocesor rozhodne (na zàkladè informace о
svislych konturach objektu obsazenych v obrazovém
signalu, ktery je zachycen CCD obrazovym cidlem), zdali
je objekt ve stfedu obrazu zaostfen. Jestlize tento objekt
neni optimainé zaostfen, mikroprocesor rychle pohybuje
zaostfovaci cockou ve velmi malych krocich z
pfedchoziho nastaveni © nebo ©, az jsou svislé
kontury nejostfejsi ©.
•Jelikoz tato Video kamera automaticky nastavuje
zaostfeni na zàkladé svislych kontur v obraze, pfesné
zaostfeni objektù se slabymi svislymi konturami neni
mozné (-► 90).
•Oproti lidskému oku systém automatického zaostfovani
pouzity u této Video kamery neni schopen okamzite
zménit zaostfeni z blizkého pfedmétu na vzdaleny.
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