Category Archives: video

Web video sizing

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I have been getting more and more interested in video work in the last couple of years.  Shooting video at the same time as stills is a regular feature of any shoot I am now on.  I am even getting better at planning my shot requirements for the video in order to have some hope of putting together a relatively coherent piece later.  The recent ISAP symposium had some good information on that.  However, that is not the point of today’s piece.  Instead, I am thinking about video size.

I have a YouTube channel on which I upload my content.  As s shameless plus, if you want to check it out, go to http://www.youtube.com/user/EdgcumbePhoto and you can see the videos I have previously uploaded.  Subscribe if you want and it will let you know about all of the exciting new videos I upload!  Okay, we return from that commercial break and resume normal programming.  I shoot everything in HD and edit the footage for 1080p output.  This can result in some quite large files.  YouTube allows you to upload full 1080p so that is what I have been doing.

Unfortunately, our current internet connection is not helpful here.  While we have pretty decent download speeds, the upload speeds are very slow.  DSL was not designed for upload and consequently, the upload speeds have not kept pace with the download speeds and the needs of users generating more and more content.  A recent video I made was about eight minutes long.  The 1080p version of this was nearly 2Gb.  Uploading this took over a day!!!

Now, when I watch videos on YouTube, what resolution do I watch them at?  I certainly like HD footage but I only ever use 720p.  This is a combination of avoiding bandwidth issues as well as the size of my monitors.  There really is no need to be any larger.  I wonder whether this is normal.  I started looking at what is available on other videos I was watching and quite a few only go to 720p.  I thought a quick experiment was in order.  The eight minute video I mentioned before can easily be regenerated at 720p so I did that.  The file size came out to just over 300Mb.  That is a pretty dramatic reduction in file size and upload time.

I think I have been wasting time and bandwidth creating files too large for anyone to need.  I am going to stick with 720p for a while and see how things work out.  We might have access to a different net connection before too long and I might check out upload speeds then but, for now, this seems to be a far more sensible approach.

Merchandise Mart video

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In a previous post I showed some images I took at the Midwest Helicopters lifting job at the Merchandise Mart.  As is normal for me these days, I also took the time to get a bunch of video and, finally, I have got around to editing this.  I wanted to focus a little more on the guys working on the roof rather than just the helicopter operations.  Of course, there is still plenty of footage of the flying too!  I hope you enjoy.

How Many Megapixels?

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How many is too many?  I really don’t know.  I refer to the number of pixels that can be squeezed onto the sensor for a digital camera and what is desirable or not.  Over the years the camera manufacturers have steadily increased the number of pixels on their sensors and come up with ever greater resolutions as a result.  This has been both beneficial and problematic.  What I am not sure about is whether I am missing the point with all of this.

My first DSLR was a Canon EOS 10D.  It was a 6.3Mp camera – something that would now be considered unacceptable on a cell phone.  It was a great camera, even if it did have a number of limitations that would be considered unheard of today.  However, for its day it was very good.  I had full page images printed in magazines from it with absolutely no problem.

As the megapixel wars got going, I was adopting larger and larger file sizes by default.  I would tell anyone who asked that megapixels were not the most important thing when buying a camera and there were plenty of other issues to consider.  I certainly don’t mind having a more dense file when I need to crop in to a shot but the impact on memory cards, the need for ever larger hard drives and the upgrades to computers to process the larger files were downsides that I didn’t appreciate.

For a while it seemed like the pixel count had leveled off a bit and the focus was on gaining better noise performance at high ISO settings.  This seemed like a very worthwhile approach for me.  However, big sensors are now back in play with the Nikon D800 leading the way and Canon talking about some large sensor cameras to come.  (I think it is worth noting that, since the pixel count is a function of the square of the linear resolution, these larger counts do not translate in to a huge improvement in linear resolution.  Yes, you do get more detail but it isn’t quite as mind-blowing as some will suggest.)

Am I a dope for not welcoming this?  Am I taking a Luddite approach in sounding happy with what I had and not appreciating the advances?  Do I just accept that all of my gear has to be upgraded periodically to stay in line with the latest thing whether it is camera file sizes, the processing requirements of new generation software or the interface needs of the latest devices.  I’m sure there are some benefits to having such dense files but I am not sure that they matter for what I do.

As for the uses for large file sizes, there is always much discussion about printing big or using for billboards.  Only a photo nerd looks at a picture from six inches and billboard resolutions are actually quite poor.  I wonder what a good resolution level really is.  Anyone care to suggest the perfect compromise?

Video of the Bridge Lifts

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The movement of the boats out to the lake in the spring is fun to watch.  As with a lot of posts these days, you have seen some stills and now it is time to share the video.  The reason the video always lags behind the stills is that editing it takes me a lot longer than going through the stills does.  A sign of either my inexperience or procrastination when it comes to putting together the edit!

Anyway, whatever my failings might be in this case, the edit is done and here is the video.

Boy, Those Trains Can Move!

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A recent art fair was taking place in Chicago and we wandered over to see what was on display.  I like these events because they always have an interesting mix of stuff.  A few exhibitors have truly excellent work.  A large number have stuff that is okay but not special.   Then there are a few that are truly appaling.  Some of these can be quite creepy and that is half the fun!

All of this is a distraction from the real point of this post.  While we were at this event, I looked back towards the loop and realized that this street rose up and provided a great view straight down the elevated tracks of the L as they come through the loop.  This looked like a spot I should probably come back to at a later stage.  This I have now done.

The view along the tracks is best accentuated by a long lens.  Since it is a street on a sunny day (I went in the morning at a time when the sun was supposed to be almost directly down the street since the high buildings around tend to shade everything), heat haze can be a bit of a problem.  A winter visit would be good if that opportunity should ever present itself.  Instead I shot a little video but also decided on another time lapse.

Luck was on my side this time.  When we were at ISAP, there was a lot of discussion on video techniques.  One thing that was mentioned was how much lead in and lead out footage should be shot to provide an editor with something to play with later.  When shooting time lapse, that lead in time is long and you don’t know when the trains are going to come along.  I just decided to start shooting while there was nothing there and see how things played out.

As it happened, I had a lot of time with nothing to make the lead in footage and then a bunch of trains showed up.  They ran through for a while and then nothing for quite a while to provide the lead out.  No planning on my part but it worked out perfectly.  This is one of those clips that I am keeping for a larger project I might finally do about Chicago (probably long after we are gone!) and it will probably only be a very small part of the larger piece but here you can see all of it in one go.

Skies With Menace

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This time of year can get a bit stormy.  We had some interesting skies rolling across the city with cloud layers heading in different directions at different heights.  I thought a time lapse might be good for this so had a go at a couple.  The sky didn’t turn into anything too dramatic in the end but it is still fun to watch the way the levels were moving.  Here is a clip of what there was.