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Custom Functions

Custom functions on the EOS 40D are split into four categories, each has its own menu and is identified using a roman numeral (I, II, III and IV).


C.Fn I: Exposure

I-1: Exposure level increments 0: 1/3 stop
1: 1/2 stop
I-2: ISO speed setting increments 0: 1/3 stop
1: 1 stop
I-3: ISO expansion 0: Off
1: On (enables ISO 3200; H)
I-4: Bracketing auto cancel 0: On
1: Off
I-5: Exposure Bracketing sequence 0: 0, -, +
1: -, 0, +
I-6: Exposure Safety shift 0: Disable
1: Enable (Tv/Av)
I-7: Exposure flash sync speed in Av mode 0: Auto
1: 1/250 sec (fixed)

C.Fn II: Image

II-1: Image Long exp. noise reduction 0: Off
1: Auto
2: On
II-2: High ISO speed noise reduction 0: Off
1: On
II-3: Image Highlight tone priority 0: Disable
1: Enable

C.Fn III: Auto focus / Drive

III-1: Lens drive when AF impossible 0: Focus search on
1: Focus search off
III-2: Lens AF stop button function 0: AF stop
1: AF start
2: AE lock
3: AF point: M->Auto / Auto->Ctr
4: One Shot <-> AI Servo
5: IS start
III-3: AF point selection method 0: Normal
1: Multi-controller direct
2: Quick Control Dial direct
III-4: Superimposed display 0: On
1: Off
III-5: AF-assist beam firing 0: Enable
1: Disable
2: Only external flash emits
III-6: AF during Live View shooting 0: Disable
1: Enable
III-7: Mirror lockup 0: Disable
1: Enable

C.Fn IV: Operation / Others

IV-1: Shutter button / AF-ON button 0: Metering + AF start
1: Metering + AF start / AF stop
2: Metering start / Meter+AF start
3: AE lock / Metering + AF start
4: Metering + AF start / disable
IV-2: AF-ON / AE lock button switch 0: Disable
1: Enable
IV-3: SET button when shooting
(only when Live View is diabled)
0: Normal (disabled)
1: Change quality
2: Change Picture Style
3: Menu display
4: Image replay
IV-4: Dial direction during Tv/Av 0: Normal
1: Reverse direction
IV-5: Focusing Screen 0: Ef-A
1: Ef-D
2: Ef-S
IV-6: Add original decision data 0: Off
1: On
IV-7: Live View exposure simulation 0: Disable (LCD auto adjust)
1: Enable (simulates exposure)

My Menu

The 'My Menu' feature on the EOS 40D allows you to produce a custom menu made up of any of the cameras menu options (including custom functions) which means that previously buried but useful options such as Mirror lockup can now be brought to a top level menu.

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I own it
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Total comments: 4

The EOS 40D’s kit options vary depending on your region. Europe and Australasia have the sensible choice of either the new EF-S 18-55mm IS or the popular EF-S 17-85mm IS USM, while America has the somewhat curious option of the EF 28-135mm IS USM.

1 upvote

Very very sad because though the 40D isn't missing any feature in particular--though I could make a case for mechanical image stabilization--one feature I'd really like to see trickle down from the 1D series, and which I think makes a lot of sense in a camera of this class, is the ability to define acceptable ranges for aperture, shutter speed, and ISO sensitivity when shooting in one of the exposure-priority modes.


the new version looks better in the statistics but for my needs the EOS 30D is sufficient. Regards

1 upvote

Same here i have a 20d and 30d they do just fine.

Total comments: 4