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playground:exposure_to_the_right_ettr [2014/01/25 12:17] – mgrantplayground:exposure_to_the_right_ettr [2014/01/25 12:20] – mgrant
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 12. Press trash button to exit ML menu. 12. Press trash button to exit ML menu.
  
-===== Usage =====+====== Usage ======
  
 You are highly recommended to use a tri-pod or other support.  Multiple images or measurments of the scene will be taken and you do not want to change the scene much between measurements.  Also the shutter speed chosen may be quite low. You are highly recommended to use a tri-pod or other support.  Multiple images or measurments of the scene will be taken and you do not want to change the scene much between measurements.  Also the shutter speed chosen may be quite low.
  
-==== Always On mode ====+===== Always On mode =====
  
 1. Frame you subject and set the aperture (for the DOF) and shoot a test photo. 1. Frame you subject and set the aperture (for the DOF) and shoot a test photo.
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 3. Shoot another a photo and repeat to step 2 until your photo is not over exposed (few or no zebra lines, and the exposure curve up to the right side of the graph). 3. Shoot another a photo and repeat to step 2 until your photo is not over exposed (few or no zebra lines, and the exposure curve up to the right side of the graph).
  
-==== Auto snap mode ====+===== Auto snap mode =====
  
 1. Frame you subject and set the aperture (for the DOF). 1. Frame you subject and set the aperture (for the DOF).
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 3. Now look at the display and you should see the second image with the histogram and the zebras in the over exposed areas (if you enabled them).  If your photo is over exposed, press the shutter again.  The camera will take at least one (and maybe a second photo) again.  Repeat until there are few or no zebra lines and the exposure curve is up to the right of the graph. 3. Now look at the display and you should see the second image with the histogram and the zebras in the over exposed areas (if you enabled them).  If your photo is over exposed, press the shutter again.  The camera will take at least one (and maybe a second photo) again.  Repeat until there are few or no zebra lines and the exposure curve is up to the right of the graph.
  
-==== Press Set and HalfS DblClick modes ====+===== Press Set and HalfS DblClick modes =====
  
 1. Frame you subject and set the aperture (for the DOF). 1. Frame you subject and set the aperture (for the DOF).
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 4. Do not recompose your shot.  Shoot the scene. 4. Do not recompose your shot.  Shoot the scene.
  
-==== Using the histogram ====+===== Using the histogram =====
  
 Inside this histogram you may see near the top-left of the graph, in white lettering, the letter E followed by a number which represents how far you can go, in EV numbers, to reach ETTR, i.e E1.2 Inside this histogram you may see near the top-left of the graph, in white lettering, the letter E followed by a number which represents how far you can go, in EV numbers, to reach ETTR, i.e E1.2
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 If the camera beeps it means that the photo is out of specs and you should shoot again.  In the tests I ran I found that in extreme situations the adjustment was completed in three photos.  For most situations the adjustment is done in one shot. If the camera beeps it means that the photo is out of specs and you should shoot again.  In the tests I ran I found that in extreme situations the adjustment was completed in three photos.  For most situations the adjustment is done in one shot.
  
-===== Convergence to results =====+====== Convergence to results ======
  
 With the **Always on** and **Auto snap** setting which takes images, it may require at least two images (sometimes three or four) to come up with the proper exposure.  Alternatively you can set the Trigger mode to **Press Set** or **HalfS DblClick** in which case the camera will go to live view, analyze the scene, and return to photo mode with the correct settings. With the **Always on** and **Auto snap** setting which takes images, it may require at least two images (sometimes three or four) to come up with the proper exposure.  Alternatively you can set the Trigger mode to **Press Set** or **HalfS DblClick** in which case the camera will go to live view, analyze the scene, and return to photo mode with the correct settings.
playground/exposure_to_the_right_ettr.txt · Last modified: 2014/01/25 12:23 by mgrant