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-   -   Question about shooting in Auto (

Kelly H Apr 29, 2007 8:46 PM

I'm new to DSLR's. I just got a Canon Xti.

I know its not recommended but I do shoot in Auto on occasion. I have noticed that every picture - no matter the lighting is ISO 400. Should it not vary with the different light situtations and being that it is the Auto setting?

Thanks in advance for your help.


coldshot Apr 29, 2007 11:33 PM

In Auto mode the camera meter adjusts the black cat as a grey cat, the white cat also as a grey cat. To get good result on your pictures you need to meter your shot using a grey card. If you don't have a grey card you can use newspaper, not accurate but close enough.

nymphetamine Apr 30, 2007 12:57 PM

i always wonder why they give the auto mode in a DSLR.

style="BACKGROUND-COLOR: #000000"Next time try using the Program mode where u can control the ISO though APerture and Shutter speed is set by the camera.

Even better would be starting to use the Aperture or AV mode. This will let u control almost everything except the shutter speed.

Kelly H May 1, 2007 6:55 AM

Thanks, I'll try that today and see what I get.


camerageak May 2, 2007 6:10 PM

to answer your original question .on auto 400 is as high as it gets.if you take pictures outside in bright sunlight the iso will be lower.try it and see.

Kelly H May 2, 2007 9:30 PM


I just went and looked at some photos I took outside in the bright sunlight and some I took inside on Auto and the ISO is 400 on all of them.

Think something is wrong with the camera?


coldshot May 2, 2007 11:35 PM


In Auto mode you'renot in control of the camera.

First, set the dial in Auto mode, aim the camera on a grey card or green grass or concrete cement on the ground near the subject/scene you want to take picture... half press the shutter button, read the exposure in the viewfinder, then set the camera in Manual mode, set the shutter speed and lens aperture the same value as you just read in Auto mode, take picture.

This one is to help you understand the shutter speed and lens aperture relationship.

Kelly H May 5, 2007 8:31 AM

Thanks coldshot. This is all so interesting but coming from a point and shoot - I hope I can learn!


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