Help Me PLease with Canon Cameras

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lizzy

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Hi

I have a Canon 5D, 20D and a 400D. And I am having a bit of a problem.

I like to shoot mainly in AV mode. But I am having the problem in whichever mode I use.

With my 400d if I try to use a setting which is gonna over or under expose the shot then inside the viewfinder if flashes at me to tell me this is gonna happen as you all wel know.

But with my 20d and my 5d it doesn't do this and I have overexposed a few shots recently with these two cameras. Can anyone give me any advice as to why this is happening. I really need it to blink at me when I am over exposing other wise I am seriously gonna mess up some shots.
 
Can you post examples of under or overexposed shots?

AFAIK, the only time any blinking warning will flash is when the camera cannot match the required exposure...e.g. If you shoot at f/2 or 1.4 or something wide open at ISO 1600 in bright daylight, the shutter will flash 1/4000 or 1/8000 or whatever your camera's max shutter is.

This is the camera's way of telling you that at that ISO + APERTURE (f/number) the camera cannot give you a fast enough shutter to give a good exposure.

I do not understand the amount of over/under exposure so examples would be handy.

HTH.
 
My 400d blinks at me when I try to take a picture while the lens is hunting for something to focus on. Exposure is read from the meter across the bottom of the viewfinder so that you can deliberately under or over expose depending on the subject.

I dont know about the 20d or 5d but I should imagine that they are much faster cameras at gaining focus (lens dependant) and therefore you don't see the blinking light so often.

I may be wrong but I'd use the exposure meter to correct the exposure bearing in mind that shutter speed will be affected.

HTH
 
The only blinking I can find on the 400D here at work is that you can see a reflection of the red autofocus led which sort of lights up at the bottom of the display slightly. There is no blinking to show over-exposure in AV mode as it will always select a suitable shutterspeed (subject to any exposure compensation etc), and if it can't then the shutterspeed will show a flashing 4000.
 
Are you sure you are not in M mode rather than Av???

As people say... in Av... the camera selects the shutter speed based on the apature ... you only control the apature for DoF purposes... the main reason to shoot in DoF

It will flash if the camera cant produce a fast enough shutter speed... but in any camera it would have to be very very very bright!

I have a 5d and shoot in AV all the time, well 90% of the time and never had that occur!
 
lizzy said:
Hi

I have a Canon 5D, 20D and a 400D. And I am having a bit of a problem.

I like to shoot mainly in AV mode. But I am having the problem in whichever mode I use.

With my 400d if I try to use a setting which is gonna over or under expose the shot then inside the viewfinder if flashes at me to tell me this is gonna happen as you all wel know.

But with my 20d and my 5d it doesn't do this and I have overexposed a few shots recently with these two cameras. Can anyone give me any advice as to why this is happening. I really need it to blink at me when I am over exposing other wise I am seriously gonna mess up some shots.
Click to expand...


Are you using the same lens on each body for your comparison :shrug:
 
Hi

Thanks guys I have sorted out why it has been overexposing on both cameras. I bought them second hand. Just cleared all the settings and haven't a problem with it now. Thanks for all the replies though.
 
lizzy said:
Just cleared all the settings
Click to expand...

Exposure compensation set to + EV ?

Took me a while to wok out how I set the exposure compensation on my 5d. Being a bloke, I didn't realise I was supposed to read the little book that came with it.
 
Whats my excuse then seen as i'm not a bloke but I do have the same problem. I'm so lazy with reading instructions if only I read them in the first place would probably save me alot of time afterwards.
 
I'd set up all three cameras to bracket exposures then choose the best shot out of 9 frames...presume you have enough lenses to go around?
 
5d does flash shutter speed as noted (if that's the question) in Av mode. Although my 5 tends to underexpose - better that than the other way though IMO.
 
When i use AV mode which is rarely i use it at 8.0 on my meter in light conditions iso is set for you i think i may be thinking of the wrong mode.

Best bet is to go through everything

Just shoot a few shots and adjust the settings to what you want and you should get best results.

May i ask why your shooting in AV?
 
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