Any 5d mk3 owners help me please

[stumac]

Hi all having a slight problem with this camera, I find that the review screen shows the image much darker than when viewed on playback. So an example being I take a shot and it shows on the back of the camera as being about 1 stop under so I add 1 step over for the next shot. But then when I review the images afterwards the first image that looked to be under turns out to be perfect and so the next image that I over exposed actually is over exposed. Hope this makes sense is anyone else having this problem? It happens 80% of the time and it is a complication I really don't need during a wedding

Also can anyone tell me how to turn off auto iso in video mode?

Thanks for your time.

 

[admirable]

Looks like you need to adjust the screen brightness..........should be looking at the histogram anyway.

 

[happy haggis]

Have you got the LCD Monitor brightness set to Auto? Maybe you are inadvertently covering the sensor with your finger?

 

[stumac]

Have you got the LCD Monitor brightness set to Auto? Maybe you are inadvertently covering the sensor with your finger?

Thinking that or as the camera leaves my face the light is changing suddenly and maybe confusing it
And yes it's set to auto so I'll change that

 

[stumac]

Looks like you need to adjust the screen brightness..........should be looking at the histogram anyway.

Very true I'll need to get into the habit of that as well