Tag Archives: video

Using a K5 for Video

Figure 1:  The K5 has the (35mm film type) Tokina mounted.

I’ve been doing video with the K5 for a few months.   I think I’m beginning to grasp some concepts, relating to how this camera can/must be used in order to shoot frustration free video.

For starters, the auto-focus sets only the initial focus when the camera is in video mode.  Since targets are moving around inside (and outside) of the DOF, this is a little sub-optimal for videographers.  My solution is to focus manually.   The K5 is nice for this, using the LV (live view) LCD, because a single press of the info button provides a 2X zoom for focusing purposes, and a double press provides a 4X magnification.

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Graphics Software for ARM Linux

Application ColorCorrection Video ARM Arch Paint Description
DarkTable Yes No Prelim/Devel only? Mask only? Photo edit – Strong CC
Gimp Yes As Animation Yes Yes Paint/Photo Edit
Inkscape Some No Yes Yes Vector Graphics
DaVinci * Yes Yes No No Film Finishing
Krita Yes As Animation Yes Yes Strong Drawing, Also photo edit
Blender Yes As MJPEG, others Yes Yes 2D/3D Drawing, Video edit
Lightworks* Yes Yes No Mask only? NLE for Video edit
Natron Yes Yes No ? Video clip ed, multi

Table 1: Some attributes of various linux graphics software entries ** 

Note that table 1 is not at all inclusive of every known graphics software project, but is an enumeration of a few projects that I am aware of and that have some substantial following of users.  I won’t vouch for the absolute accuracy of the feature list, as I’ve used only one of these packages very intensively, and most of them not at all. I would advise to check out the features of the various projects, and make you own determination as to which may be a good choice to try. For the most part, the items are free, so there shouldn’t be much downside to a trial and error approach to this.

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Using Blender to Color-Correct Video

Figure 1: Blender adds a little red for “color correction” of the fur to gold

Many people don’t know that Blender can be used as a non linear video editor, with some nice features like color grading, wiping, fading, and other special effects.   Many people use the program for things that are not video, and so a potential user of Blender for NLE might not think to try it.  I’ve put together a series of clips for a quick-hit list that sets up the NLE editing session for the purpose of brightening and color-correcting a video of my dog Hutch, undershot as usual, due to the video being shot indoors.

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The Blender software is available at www.blender.org – and is great software.  This site and author has no affiliation with that project.

Some Notes about MJPEG

Figure 1: The S8600 has an enormous built-in zoom lens.

The fact that some software can act as an NLE editor for video is sometimes a by-product of animation facilities.   The frame-by-frame JPEG image file format of motion-jpeg – which uses the MJPEG acronym – makes it automatically a candidate for any kind of animation software action, in the same way gifs and apngs are animated.  MJPEG is just a series of JPEG picture images inserted serially into a file.  MJPEG is all I need, so I don’t care about any other codecs (whether they exist or not).  It’s beautiful in its simplicity, although it does have some drawbacks.

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Video on the Cheap

Figure 1: A Fujifilm S8600 “Bridge” camera.

Probably the cheapest way to create videos where convenience is at least a little appreciated is to purchase a so-called “bridge” camera.

A bridge camera is a camera designed to fill the niche between the least expensive camera type (compact / point ‘n shoot) camera and the much more expensive DSLR camera.  In recent years some DSLR cameras have had their pricing reduced from the historically (pretty high) costs.  Even with those recent reductions, for the budget minded (often novice level) user, the bridge camera still can find a good home and happy owner.  

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