Canon eos5d - page 27

On both the EOS 50D and the EOS 5D Mark II,you access High ISO noise controls via

(C.Fn II-2).There are four settings: Standard, Low, Strong and Off (the default is Standard).

On either camera,the maximum burst rate should remain the same (3.9 fps on the EOS 5D

Mark II and 6.3 fps on the EOS 50D) when the High ISO setting is set to either Standard

or Low.However, burst speed will slow down slightly when the Strong setting is used, due to

the extensive level of in-camera processing required.

Peripheral Illumination Correction

The DIGIC 4 Image Processor found in both cameras powers an image processing tool formerly

found only in Canon’s Digital Photo Professional (DPP) software:Peripheral Illumination

Correction (PIC).When it is activated via the menu, JPEG images are automatically corrected

for light falloff towards the edge of the image.This problem isn’t always noticeable prior to

correction,and varies by ty pe of lens and aperture used,as well as the distance a lens’ focus is

set to.Both cameras are capable of storing the required lens correction data for up to 40

Canon lenses.When shipped, the data for 26 lenses (including the kit lens) is loaded into the

camera.Up to 14 additional lenses can be registered in the camera, and if more are needed,

you can delete unused lens data via the EOS Utility software included with the camera. If a

lens is supported,a notice “Correction Data Available” will appear in the menu control.

IV. PERFORMANCE AND RELIABILITY

LensPeripheral Illumination Correction (EF 16-35mm f/2.8L USM at wide end)

Corrected NotCorrected

EF16-35mm f/2.8LII USM EF28-105mm f/3.5-4.5 II USM EF28mm f/2.8

EF17-40mm f/4LUSM EF28-105mm f/4-5.6 USM EF35mm f/1.4LUSM

EF20-35mm f/3.5-4.5 USM EF28-135mm f/3.5-5.6 ISUSM EF35mm f/2

EF24-70mm f/2.8LUSM EF28-200mm f/3.5-5.6 USM EF50mm f/1.2LUSM

EF24-85mm f/3.5-4.5 USM EF28-300mm f/3.5-5.6LISUSM EF50mm f/1.4 USM

EF24-105mm f/4LIS USM EF14mm f/2.8L II USM EF50mm f/1.8 II

EF28-90mm f/4-5.6 EF20mm f/2.8 USM EF85mm f/1.2LII USM

EF28-90mm f/4-5.6 II EF24mm f/1.4LUSM EF85mm f/1.8 USM

EF28-90mm f/4-5.6 II EF24mm f/2.8

EF28-105mm f/3.5-4.5 USM EF28mm f/1.8 USM

The EF28-90mm f/4-5.6/II/III and EF28-105mm f/3.5-4.5/II have the same opticsso they are all represented (displayed) as"EF28-90mm f/4-5.6"

and "EF28-105mm f/3.5-4.5" respectively.