Canon EOS-1Ds Mark III Dicas e técnicas - Página 6

Procurar online ou descarregar pdf Dicas e técnicas para Software Canon EOS-1Ds Mark III. Canon EOS-1Ds Mark III 35 páginas. Digital slr camera
Também para Canon EOS-1Ds Mark III: Manual de instruções (42 páginas), Livro Branco (38 páginas), Manual de instruções (19 páginas), Manual do produto (39 páginas), Manual do produto (36 páginas), Manual do utilizador do software (50 páginas), Brochura (39 páginas), Manual (25 páginas), Brochura (2 páginas), Brochura (32 páginas), Manual de funções (21 páginas), Conceção e desempenho (25 páginas), Especificações (2 páginas)

45-point Area AF Sensor

I. CAMERA FEATURES

AND OPERATION

EOS-1 class digital SLRs use an improved version of the 45-point Area AF CMOS sensor

unit that was originally introduced in 1998 with the EOS-3. The pixel density and layout

of sensor elements together with the patented design of the camera's sub-mirror and

separator lenses gave rise to the name "Area AF" and resulted in a coverage area of 8 x

15mm with 45 selectable focusing points. (Previous EOS AF designs had 5 points or

fewer, all in a single line.) When the camera is oriented horizontally, all 45 points are

sensitive to horizontal or diagonal subject contrast with lenses featuring maximum

apertures as small as f/5.6. Six of the central-area focusing points become high-

precision cross-type sensors when the lens has a maximum aperture of f/2.8 or larger.

The central focusing point is high-precision cross-type with f/4 or faster lenses, and can

maintain single-line autofocus with maximum apertures as small as f/8. These factors

can come into play when choosing lenses and extenders for maximum AF performance.

AF Frame

The focusing area is 8 x 15mm regardless of the camera's imaging format.

Consequently, AF coverage is proportionately larger with the EOS-1D and EOS-1D Mark II

with their 19.1 x 28.7mm imaging format than it is with the EOS-1Ds Mark II, EOS-1Ds,

EOS-1v or EOS-3 which feature 24 x 36mm coverage.

EOS 1Ds Mark II

I. CAMERA FEATURES AND OPERATION

Black: Horizontal line detection

sensors operational with

f/5.6 or faster lens.

Red: Vertical line detection sensors

operational with f/2.8 or

faster lens.

EOS 1D Mark II