All posts by 3DM

Cameras, Lighting, Still photography, Techniques

Question on how to expose for greatest dynamic range on GH2

Question on how to expose for greatest dynamic range on GH2 – Personal View Talks.

This question was posted on Personal-View.com, the web site for micro four thirds (run by the author of the GH-1 and GH-2 hacks) and specifically the high end Lumix cameras.

Suggestion is made to consider using graduated neutral density filters or polarizing filters to help reduce the highlights in photographs. The same could be said for video, and that this tip applies not just to Lumix cameras but all kinds of still and video cameras.

I shot something recently, on video, using a Canon camera, where the subjects were in the shade but enough else was in direct sunlight. There was nothing I could do but allow the highlights to blow out on the limited dynamic range of 4:2:0 HDV video. But the suggestion to use a graduated ND is a good one that I thought worth sharing with others.

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Using DropBox for video file uploads to Vimeo

Vimeo’s video file up-loader is well known for being very slow. Tortuously slow.

Fortunately, Vimeo now supports importing video files from DropBox. Go to Dropbox.com and set up a free account. Then copy your video file to your local Dropbox and wait for it to synchronize to the Dropbox cloud. Once done, go over to Vimeo, choose Upload and select the Dropbox option. Vimeo reads the file over from Dropbox very quickly – this is so much easier than dealing with Vimeo’s uploader.

Continue reading Using DropBox for video file uploads to Vimeo →

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Why is Youtube so slow?

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why is youtube so slow in 2012? – Google Search.

Lots of people are asking this question but there does not seem to be a good answer. We have noticed that on our 12 Mbps connection play back stalls out all the time on HD (720p) videos now, making viewing unusable. Stalling even occurs on HQ (480p) at times. Does not matter what device we use to view – its the same everywhere. But we can play Vimeo or Netflix HD videos just fine.

One common culprit is thought to be the Adobe Flash Player, but that does not explain our Roku (with the secret Youtube channel that is no longer available). And the problem exists in different browsers on different computers. And lots of other people are experiencing similar problems, not just us. (See below – this has nothing to do with the Flash Player.)

Truthfully, Youtube is nearly unusable at this point.

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The problem occurs every evening from 6pm to midnight local time, for sure. In the early morning, Youtube works okay. This means that either Youtube itself has insufficient bandwidth or the local ISP (CenturyLink telephone company DSL) is doing something to limit access to Youtube. Again, Vimeo and Netflix work fine on HD videos – the problem is only with Youtube.