Question about HDR settings

Started by ipatton, June 24, 2013, 09:26:53 PM

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ipatton

Hi folks,
I have ML set for hdr with the "5x1ev, 0-+, 2s" option, so I expect to take 5 shots at 0, -1, -2, +1, +2.
Yesterday I tried some shots and with surprise I had 5 shots at 0, -1, -2, -2, -2.
So I had 3 shots with the same exposure.
What's wrong with my settings?
Thank you so much for any suggestions.

ipatton


Walter Schulz

You might want to give more information:
- Camera type and firmware version
- ML version
- Camera setting (Mode, aperture, shutter speed, ISO, highlight tone priority on/off ...)
- Was it the first time you tried adv. bracketing?

Ciao, Walter

ipatton

Thank you for your answer Walter!
Here my last night settings:
- Canon 50D firmware 1.0.9
- ML version 2.3
- Av priority, F/13, shutter speed 1"6 (2 shots), 4", 2" and 8", ISO 800, highlight tone priority off, AWB, picture style standard
- yes, it was my first attempt in adv. bracketing...

Ciao, Marco

Walter Schulz

Disable "Auto Power Off", make sure Canon's own bracketing is turned off and test again using mode M. Exposure setting somewhere between 1/200 and 1 sec.
Is bracketing working as intended with these settings?

Ciao, Walter

ipatton

Walter, I don't understand!
I've just made a try in M, F/8, 1/10sec., Iso 200 and ML HDR mode in 5x1EV, 0-+, 2s.
This is the results:
- shot 1: F/8, 1/10 sec., EV 0;
. shot 2: F/8, 1/20 sec., EV 0;
- shot 3: F/8, 1/5 sec., EV 0;
- shot 4: F/8, 1/40 sec., EV 0;
- shot 5: F/8, 0"4 sec., EV 0.

:o :-\ :o
No EV bracketing and shutter speed not blocked to 1/10 sec.!!!!!

Walter Schulz

That's the way exposure bracketing works in modus M: Aperture remains constant and exposure time is varied according to your setting.
1/10 s - 1 EV = 1/20 s
1/10 s + 1 EV = 1/5 s (= 0.2 s)
1/10 s - 2 EV = 1/40 s
1/10 s + 2 EV = 0.4 s

Do you have a problem with these results?

Ciao, Walter

ipatton

Ah, ok...!
You are absolutely right Walter!
So, do you suggest to set always M for hdr bracketing with ML?

Thank you for your help!

Walter Schulz

I use M for HDR and it doesn't matter if ML is running on the camera or not. ML on the camera comes handy shooting HDR.
Your mileage may vary.

Ciao, Walter