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  #1  
Old 04-29-2004, 12:59 PM
CarlEdwards CarlEdwards is offline
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Auto bracketing and overexposure...

When I shoot the exteriors of the cars I shoot, I use autobracketing. Now I'm sure that comment will bring out many that insist that this technique is improper, amateurish, and whatever, but it sure works for me and my clients so move on to another post if the thought offends you please. I'm gonna keep doing it.
During the shoot, I will shoot a couple of hundred shots. Not real fast, but I'm sure the writing process is going on while I shoot and at while I'm at rest. Once or twice during every shoot it seems, I get a series of 3 shots (which is what I have Autobracket set to) that are very overexposed. 1.5-2.5 stops. Then it starts to expose normally again. Note-this is all of the same subject and the backgrounds are all very similar so I don't believe it is a meter error. Well, of course it is but I hope you understand what I mean. It's not a misevaluation of the scene so much as it is an error of the camera. Since I typically shoot a particular view of the car in this manner, I lose the view (pose) that is overexposed.
Anyone else have this happen?
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Old 04-29-2004, 03:35 PM
JT_Foss JT_Foss is offline
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Re: Auto bracketing and overexposure...

Can you specify what mode are you using? (M, A, S, P?)
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Old 04-29-2004, 03:45 PM
CarlEdwards CarlEdwards is offline
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Re: Auto bracketing and overexposure...

A Mode
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Old 04-30-2004, 01:28 PM
JT_Foss JT_Foss is offline
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Re: Auto bracketing and overexposure...

Ok, On the overexposed shots, what does the EXIF information speed and aperature agree with? (the proper exposure?, or the overexposure?)
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Old 04-30-2004, 02:10 PM
CarlEdwards CarlEdwards is offline
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Re: Auto bracketing and overexposure...

Judging by previous, similar shots, that are properly exposed, I would say it agrees with the overexposure.
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Old 04-30-2004, 06:12 PM
JT_Foss JT_Foss is offline
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Re: Auto bracketing and overexposure...

If I'm understanding you correctly then it strongly points toward a metering issue. The possible causes are many. For example, something as simple as having your finger lightly pressing the trigger while the camera is pointing slighly off target. Then quickly reframing and taking the picture without ever re-metering the new frame.

I know you enjoy your current picture taking habbits, but I would recommend 'M' mode to aleviate the symtpom you are experiencing. This should be simple since your background and subjects are stationary.
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Old 04-30-2004, 07:48 PM
CarlEdwards CarlEdwards is offline
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Re: Auto bracketing and overexposure...

thanks. I'll try to pay more attention and see if I can detect the problem. How about adjusting a polarizer and shooting quickly?
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