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canon 7d

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    jingler
    jingler  3
    21 Dec 2011 - 4:55 PM

    hi all
    when in av mode sometimes the apertue adjustment wheel does not change the aperture
    any thoughts

    jingler

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    21 Dec 2011 - 4:55 PM

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    adrian_w
    adrian_w e2 Member 73355 forum postsadrian_w vcard Scotland4 Constructive Critique Points
    21 Dec 2011 - 4:57 PM

    are you at maximum or minimum apertures when this happens?

    sherlob
    sherlob e2 Member 82332 forum postssherlob vcard United Kingdom125 Constructive Critique Points
    21 Dec 2011 - 6:58 PM

    Adrain's point is a good one - remember that with the exception of most top-end zoom lenses the minimum aperture is variable. E.g. f4 at say 28mm and f5.6 at 105mm

    jingler
    jingler  3
    21 Dec 2011 - 8:50 PM

    dose not work at any apertures ( having to change the aperture on the q screen)
    also in manual mode none of the wheels change the shutter speed or aperture.

    fraser
    fraser  10631 forum posts Scotland14 Constructive Critique Points
    21 Dec 2011 - 11:26 PM

    Have you locked the rear wheel by accident?

    Munro
    Munro  639 forum posts United Kingdom
    22 Dec 2011 - 12:23 PM

    Ensure the power switch is fully switched on otherwise not all functions work fully.

    mikehit
    mikehit  56536 forum posts United Kingdom10 Constructive Critique Points
    22 Dec 2011 - 12:41 PM

    You are on Tv by mistake?

    User_Removed
    22 Dec 2011 - 1:05 PM


    Quote: the apertue adjustment wheel

    Is there such a thing, doesn't it depend which mode you're in? I haven't got the 7D but on other models you have to use the back wheel to change aperture when in full manual. That wheel won't work unless the power switch is turned to the second position.

    jingler
    jingler  3
    22 Dec 2011 - 4:46 PM

    the 7d power switch is either on or off and the mode is in av
    there is definatley a problem with the main controler as it is not changing the iso either
    its still under warranty so back to jessops tomorrow

    User_Removed
    22 Dec 2011 - 4:58 PM

    Sounds like it's that top controller wheel (especially as it won't change ISO either)

    Incidentally what position is the lock button in? If you are in Manual mode can you change aperture using back wheel?

    22-12-2011-16-58-03.jpg

    Last Modified By User_Removed at 22 Dec 2011 - 5:00 PM
    jingler
    jingler  3
    22 Dec 2011 - 5:19 PM

    the switch on the back is on
    when in manual the top controler changes the aperture and the back controler the shutter speed
    i think somewhere in the menu i can change the functions of the top and back controlers
    i will take it into jessops and see what they say
    i dont fancy not having the 7d over the holidays

    digicamera
    22 Dec 2011 - 5:23 PM

    I like canon. it is very good

    mikehit
    mikehit  56536 forum posts United Kingdom10 Constructive Critique Points
    22 Dec 2011 - 6:11 PM

    If I read your previous post correctly, when in full manual mode none of neigher dial changes anything?

    In the menu go to the CFn lists anbd select CFn IV and option 1. This hsows which buttons/dials make which adjustments and on mine I see that the top wheel changes Tv and the rear wheel changes Av. These can be reassigned if necessary.

    If that does not show anything useful you can try a complete reset:
    Press 'menu' and go to the third of the settings menus (spanner with 3 dots). Then select 'clear all camera settings' and confirm
    Turn off the camera and remove both the main battery and the back-up battery
    replace both batteries and power up again

    jingler
    jingler  3
    22 Dec 2011 - 7:33 PM

    hurray switched off, took out batteries and success
    thank you all for your input

    jingler

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