March 26, 2010

“Leave it to Beaver, or …”

Filed under: Blog — Jim @ 5:01 am

… “Anatomy of a Tail Slap”.  That’s what this post is all about.  I first found a couple of American Beaver (Castor canadensis) families last summer, while kayaking in a couple of different local Conservation Areas.  One of the things that has intrigued me is their powerful alarm system, the “tail slap”.  When danger is sensed, the beaver will voraciously slap it’s tail on the water, making a very loud bang-like noise that is audible for considerable distances.  This slap is meant to alert other beavers of the pending danger, as well as an attempt to scare away any intruders.

Ever since finding these populations of beaver, I have worked at capturing the tail slap through a series of still images.  Not only is this action very quick, but since the beaver activity is primarily nocturnal, the chance of running into a beaver is usually limited to low-light conditions such as around sunrise and sunset, making it very difficult to capture this quick action.  Another factor I have run up against is the fact that shooting from a kayak can be difficult, especially since the beaver seems to sense my intent and usually tail slaps behind me.  After studying their behavior over the past year, I have developed a better “feel” for when they are about to tail slap.  I’ve also perfected my maneuverability in the kayak, making it a bit easier to be able to photograph them.

As of late, after the long, cold winter, the beaver activity right now is very high and I have been alongside them, in “Rubber Duckie” (my trusty kayak), as often as I can get out and the weather cooperates.  This past week, I was semi-successful in capturing one of the beavers tail slapping me.  This action occurred about 8 minutes before sunrise, so the ambient light was quite low.  However, with today’s digital cameras, the sensors can often be placed in a very high ISO range and acceptable images made.  In this instance, I had the ISO set to 3200.  I did incur a bit of “noise” due to the high ISO, but Noise Ninja removed most of it.  This series of images was shot with an aperture of f6.3 at 1/80 to 1/160 second, not the best for quick action!  However, I did manage some decent shots.  I’m not totally satisfied with these shots, so it’s still on my “To Do” list.  But the tail slap is an interesting phenomenon and I’ve broken down the action below.

In this first image, a juvenile beaver (probably 1-2 years old) glides from under a bush along the bank’s edge beside me and Duckie, about 20 feet from us:


In this next image, the beaver has initiated the tail slap.  Note the “hump” in the middle of the action.  This is the beaver’s body as he tucks his head and begins a dive underwater.  The “hump” at the far left of the image is his tail.  He is in the process of raising it out of the water to get plenty of momentum for a strong slap:


In the following image, the beaver’s posterior is a bit out of the water as he makes his dive, straight down.  At the upper end of the body, you can see the tail, out of the water and nearly perpendicular to the water surface.  All of the water behind (to the left of) the beaver was brought out of the creek as he brought the tail out:


And in this next image, you can clearly see the hyper-extended tail.  It is past perpendicular and near to being parallel to the water surface.  It is at this point that the beaver begins the downward motion of the tail so that it slaps abruptly against the water surface:


In this next frame, both the beaver’s body and tail are just below the water surface.  You can see a small indentation in the water (immediately to the right of the water about to land on the surface), which is where the tail was slapped against the water:


After the last image was taken, there was calm and quiet for a short time.  Then, up comes Junior as he swims away, as if nothing ever happened.  Couldn’t tell, but I think there was a smile on his face and I could sense his parting words to me, “Take that, you overgrown duckie!”:




March 19, 2010

“How Can I Improve My Photography” (Feb-Mar 2010 Newsletter Tip)

Filed under: Photography Tips — Jim @ 11:35 am

This is a question that I’m often asked.  And why not, it is the same question that I began asking about 10 years ago, whenever I decided to get back into photography.  As with anything in life, as we become involved with something new, a new hobby, a new career, nearly anything, we often ask ourselves, or others, how we can improve ourselves.  In fact, I still find myself asking this question on a regular basis.  Yes, my photography has improved a lot over the years, but I want to take it to a higher level.  What do I need to do to get there?  Do I need to learn new techniques?  Do I need to invest in different equipment/accessories?  Well, when thinking about what topic I’d write about in this issue of Show-Me Nature Photography Newsletter, I decided that I’d offer some suggestions for those who are wanting to improve their photography.  So, here goes.

The first thing I suggest is to get out with your camera on a regular, consistent basis.  I recommend at least once a week.  It doesn’t matter what the subject is, it just matters that you are actively working with your camera.  And it doesn’t have to be an all-day event, just try for 30-60 minutes of “quality time” with the camera.  I think you will find that the more you shoot, the better you will understand your camera, it’s controls, and how it functions.  When shooting, don’t be so intent on the results as you are on what you learn from the experience.  If you try a new technique or a different shooting mode, do your best to learn from the experiment.  What went well?  What didn’t go right?  What will you do differently next time?  Take notes, so you can refer back to them later.  Ultimately, you will find that this repetitive practice leads to better images.

The second thing I recommend is to know your camera.  This ties in with the first point, but I think for you to have ultimate control over the camera, you must know it’s controls, what they do, how to work them, and know when/when not to use them.   A prime example:  When I photograph wildlife, I don’t have much time to play with controls.  Over time, I have found that intimately knowing how to quickly change the exposure settings, via Exposure Compensation, has helped me make many successful wildlife images.  And I do it “by feel” and by observing symbols in my viewfinder, all without taking my eye from the viewfinder.  I know exactly where the controls for using Exposure Composition are located, so I can make changes without taking my eye away from the wildlife action that is taking place.  Know your camera well and it will treat you well!

The next thing you can do is to read, read, read.  With the internet, articles on equipment, techniques, wildlife, etc. are right at our fingertips!  Not only can you learn basic techniques used by many photographers, but you can keep abreast of changes that are constantly taking place with techniques and equipment.  And if you even dare, pull out the camera manual and read through it.  Yeh, I know it is often not “user-friendly”, but if you practice a lot (remember the first tip in this article?) and begin to “know” your camera better (ah, yes, step #2)  then the manual may make more sense to you.  And if it doesn’t, there are some videos out for a lot of digital cameras; these might be what you need to help you to learn your camera controls.  Another alternative to the manufacturer’s manual:  there are some third party publishers that are writing camera manuals “in English”; check these out.  Also, check out the local library.  They often have a lot of good books on photography.  Do you have a local bookstore?  Check them out, too!

Attend photography classes or weekend classroom seminars.  When I was struggling at improving my photography, I attended every class or seminar that came to the Kansas City area!  Most of these classes/seminars were taught by professional nature photographers and I walked away with many tips and suggestions from them.  You can do the same.  Besides these classes, there may be photo classes at local junior colleges.  Or you can attend one of my photography classes I teach at the Cass Career Center in Harrisonville, MO (yeah, a bit of shameless self-promotion), or by other local photographers.  Any classwork or seminars you attend can really help to bring things together for you.

Taking the last action a step further, consider a hands-on workshop.  These can be extremely helpful!  First, identify a photographer whose work you admire (style, subject matter, etc.) and if they offer workshops, sign up with them.  The workshop length can be short (a few hours) to quite long (7-10 days).  Spend as much time as you can on the workshop.  Most workshops are set up with classroom instruction sessions, followed by in-the-field shooting sessions.  Spend as much time as possible being close to the instructor.  Ask questions!  Try suggestions made by the instructor!  Get out of your comfort zone and try new things!  Ask the instructor for critiques on your images (if the workshop is not already set up for critiques).  Now is not the time to go off on your own and shoot; stick to the instructor like glue, and gain as much knowledge as time will allow!  If you envy a particular style of the instructor, ask questions about how some of his/her images were made:  what equipment was used?  how was the exposure made?  why did he/she decide on that composition?  Take notes and think of some things for you to try at your next “practice” session.

I think if you give these things a sincere try, you will find that your photography can, and will improve.  And if you ask me which one of these steps is the most important, I’ll probably answer by saying “repetitious practice” (the first item I discussed).  As with anything, you will become better with practice alone.  And if you’re like me, the better your images get, the more you thirst for “taking it one additional step”.  But one of the most important things is to have fun with it.  If you don’t have fun, you will not have the drive to improve.  So, get out there, practice on a regular basis, have fun, and watch your photography improve!



March 17, 2010

WORDLESS WEDNESDAY

Filed under: Blog — Jim @ 6:19 am