Canon 60d-Exposure and exif queries

Thank you. I shall get to grips…..

gonzogolf wrote in post #16758611
You really need to get a grasp on how the reflective metering works, and how to use exposure compensation to adjust for it. I dont see a problem with the camera.

I agree with Gonzogolf.

However, I am a bit perplexed if you used Green Box on the upper photo and Av priority, how did the metering system picked two different exposures?

Who changed the ISO?

Start with one step at a time, fix the ISO (generally ISO 400 would be OK for daylight), choose Av, set the aperture (f5.6 is a safe aperture for your 18-55, sharp enough without penalizing the shutter speed with a stop-down).

Try, for reasonably constant conditions to vary the EC (press the Q button and select the long box in the second row, then use the back wheel to choose Exposure Compensation (EC)). I find that for me and the 60D the +2/3 EC works well... for my tastes anyway.

Some good tutorials on the 60D at http://www.learn.usa.c​anon.com …s/eos_60d_tutor​ials.shtml.

MakisM1 wrote in post #16758675
...However, I am a bit perplexed if you used Green Box on the upper photo and Av priority, how did the metering system picked two different exposures?...

OP is in error, both exposures were made in aperture priority.

rrblint wrote in post #16759834
OP is in error, both exposures were made in aperture priority.

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It is very likely that the big white blob of fungus in the central portion of the second photo caused the under exposure. An adjustment of +1 EC would have fixed it.

I think you are right. The framing is not the same between the two photos, so the white fungus weighs in more in the second photo, dictating the underexposure.

The mind plays tricks sometimes... just because the subject is the same, it doesn't mean that the phots will meter the same if the composition changes!

Thank you very much for your comments, insightful stuff. I must go back to my original message where I mention the exif info. I took a number of shots of the same fungus and others, in fully auto, live shot and aperture priority. When I looked at the exif for all of the shots they all read that they were shot in aperture priority, when they clearly were not, I was hoping I could use the exif data to analyse the differences……..

Andy O wrote in post #16760243
When I looked at the exif for all of the shots they all read that they were shot in aperture priority, when they clearly were not, I was hoping I could use the exif data to analyse the differences……..

I suggest you load up the Digital Photo Professional software that came with the camera and then you can positively do what you want. Anything else may introduce an unknown. The unknown may not necessarily be bad but lets get beyond your problems first.

I have uploaded DPP, this is where I copied the exif info from, so there should be no unknowns..