Differences

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

--- live_capture [2017/06/25 14:12] – walkeradmin
+++ live_capture [2017/06/25 17:59] – walkeradmin
@@ Line 1: / Line 1: @@
 ====== Live Capture ======
+<color darkorange>Jun 2017</color>
 \\
-Now, this depends on your camera, and whether gphoto2 supports it on your model. To get the capabilities of your camera, use the following command:
+\\
+----
+\\
+<color #ed1c24>WARNING!!!!</color> If you came to this page without looking at the [[live_capture_setup|Live Capture Setup]] page, then shame on you! You will probably find that capture does not work properly because you didn't do something very important, mentioned in the [[live_capture_setup|Live Capture Setup]] page :)
+\\
+\\
+\\
+\\
+<color #ed1c24>Plese read this next section, it's quite important.</color>
+----
+<color #ff7f27>It seems</color> <color #22b14c>gphoto2</color> <color #ff7f27>has an issue if the shutter speed is slow. So using a shutter speed of say 1/250, then I can capture and download a file. If I use a shutter speed of say 3s, then I can capture, but download simply won't happen.</color>
+\\
+\\
+On the 700D, 1/6 seems to be the cut off, if you go to 1/4, then you lose the ability to capture and download in a single command. You can of course capture, execute a wait equivalent to the shutter speed (plus a bit for writing to the card) then do a download using the <color #ed1c24>--skip-existing</color> so you only download files that have not already been backed up.
+----
+\\
+\\
+Now, this depends on your camera, and whether <color #22b14c>gphoto2</color> supports it on your model. To get the capabilities of your camera, use the following command:
 \\
     gphoto2 --summary
@@ Line 57: / Line 76: @@
     gphoto2 --capture-image-and-download
 \\
-<color #ed1c24>gphoto2 --trigger-capture</color> takes a photo and stores it on the SD card.
+<color #ed1c24>gphoto2 --trigger-capture</color> takes a photo and stores it on the SD card.\\
-<color #ed1c24>gphoto2 --capture-image</color> takes a photo and stores it on the SD card.
+<color #ed1c24>gphoto2 --capture-image</color> takes a photo and stores it on the SD card.\\
-<color #ed1c24>gphoto2 --capture-image-and-download</color> takes a photo and stores it on the SD card and downloads it.
+<color #ed1c24>gphoto2 --capture-image-and-download</color> takes a photo and stores it on the SD card and downloads it.\\
 \\
 \\
@@ Line 65: / Line 84: @@
 \\
     gphoto2 --list-files
-\\
 <file>
 There is no file in folder '/'.
@@ Line 81: / Line 99: @@
 \\
     gphoto2 --capture-image
-\\
 \\
 We can now again check the camera memory card:
@@ Line 123: / Line 140: @@
 \\
     gphoto2 --list-files
-\\
 <file>
 There is no file in folder '/'.
@@ Line 137: / Line 153: @@
 \\
 \\
+If you wish to download and keep the files (this took a couple of attempts for me) then you can use the following syntax:
 \\
+    gphoto2 --capture-image-and-download --keep
 \\
+And to go back to just downloading the files, you can use:
 \\
+    gphoto2 --capture-image-and-download --no-keep
-On some cameras the <color #ed1c24>takes a photo and stores it on the SD card</color> takes the image, but does not store it on the SD card (like on my 700D) so you can use <color #ed1c24>gphoto2 --capture-image-and-download</color> and the camera will take the photo and gphoto2 will download it, but it will still not be store on the SD card (does not work on my 700D)
-\\
-\\
-So in summary, I have been able to download files from my camera(s) but not capture from them. So I can make a decent backup solution using gphoto2, but not an intervalometer.
-\\
-\\
-Cameras tested so far:
-\\
-<file>
-Canon EOS M (the original)
-Canon EOS 550D
-Canon EOS 700D
-Canon EOS 5DMk2
-</file>
 \\
 \\