Differences

This shows you the differences between two versions of the page.

--- playground:playground [2014/01/21 20:37] – mgrant
+++ playground:playground [2014/01/25 10:09] – mgrant
@@ Line 3: / Line 3: @@
 This is work in progress before it gets inserted into the main doc page.
-  * Exposure helpers: [[#Exposure to the right (ETTR)|ETTR]], [[#zebras|zebras]], [[#false-color|false color]], [[#histogram|histogram]], [[#waveform|waveform]], [[#spotmeter|spotmeter]], [[#vectorscope|vectorscope]].
+  * Exposure helpers: [[Exposure to the right (ETTR)|ETTR]], [[#zebras|zebras]], [[#false-color|false color]], [[#histogram|histogram]], [[#waveform|waveform]], [[#spotmeter|spotmeter]], [[#vectorscope|vectorscope]].
 ====== Exposure to the right (ETTR) ======
 Exposure to the right (ETTR) is a technique of setting the exposure of a scene such that few or no pixels are are over exposed (blown out) thus maximizing the information captured without loosing information to over-exposure.  This may produce a darker image but this can be corrected later in post processing.  The exposure curve is thus as far to the right as possible without it being clipped.
+For more information on ETTR, see these articles on Luminous Landscape:
+  * http://www.luminous-landscape.com/tutorials/expose-right.shtml
+  * http://www.luminous-landscape.com/tutorials/optimizing_exposure.shtml
 There are two methods (three really) of using ETTR:
@@ Line 21: / Line 25: @@
 {{:playground:aettr1_jpg.jpg|Exposure Menu}}
-Pressing the **Q** button brings you to the settings menu of the ETTR function:
+Pressing the **Q** button brings you to the settings menu of the ETTR function
-{{:playground:aettr3.jpg|ETTR Info Screen}}
 ==== The Settings ====
+{{:playground:aettr3.jpg|ETTR Info Screen}}
 **Trigger mode**: Always ON, Auto Snap, Press SET, HalfS DblClick.  The mode that AutoETTR uses to perform it's function.
@@ Line 50: / Line 54: @@
 ==== The Advanced settings ====
+{{:playground:aettr0.jpg|}}
 **Exposure Target**: A general exposure target for the scene,  cannot be set to zero but it could be set lower to expose darker.  This is not really used very much, usually left at -0.5
@@ Line 69: / Line 75: @@
 Then in the **Overlay Tab** you scroll down to **Histogram** and press **Q** to configure:
-RAW EV indicator: OFF  Here you can press the set button and select ETTR hint.  This will display in the RAW histogram a hint of how many more EVs you can expose to meet the ETTR parameters set in previous menu.
+**RAW EV indicator**: OFF  Here you can press the set button and select **ETTR hint**.  This will display in the RAW histogram with a hint of how many more EVs you can push your expose to meet the ETTR parameters set in previous menu.
-Also in the **Overlay Tab** you can scroll to **Zebras**, press **Q**, and make sure that RAW zebras are ON.   The RAW zebras will show on the image itself to mark the areas where a color channel may be overblown.
+Also in the **Overlay Tab** you can scroll to **Zebras**, press **Q**, and make sure that **RAW zebras** are ON.   The **RAW zebras** will show on the image itself to mark the areas where a color channel may be overblown.
@@ Line 164: / Line 170: @@
 If you also enabled RAW zebras via Global draw, you will also see, if any, areas of the image are over-exposed.  Black will be completely overexposed, then you can see red, green, and blue channels clipped areas shown with their respective colors.  White will be dark areas completely under-exposed.
+===== References =====
+  * http://www.magiclantern.fm/forum/index.php?topic=5693.0
+  * http://www.magiclantern.fm/forum/index.php?topic=8322.0
+  * http://www.magiclantern.fm/forum/index.php?topic=5705.0