Tag Archives: photo

Cute therapy

Already the week is on a tough vector, so I thought I’d post some kitty pictures from the years. I have one 4 1/2-year-old muted calico named Lobelia who is built like a teddy bear but isn’t much for cuddling. My other is a 2-year-old all black male named Erg who weighs 14 lbs and craves contact. Erg tries to cuddle Lobelia and is often rebuffed, so he chases her instead. Erg is an amazing hunter, and although he is an indoor cat, he has caught many roaches, spiders, crickets, 2 mice and a snake. (We have a door with a high gap in an unfinished area where the bugs tend to come in.) So, some pictures! SONY DSC

Lobelia sometimes scratches her ears too much, so she gets the cone. When the cone is on, she is so dejected that many things can be stacked on her. It’s hard to resist.

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Lobelia poofs her tail and points it down when she is trying to start play.

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Erg’s first bird.

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Lobelia and her hated enemy, the CD tray.

Some images of spring

Because I am still very sore and cranky from my polo tournament (played every minute but those I was kicked out for), here are some pictures of spring. Soon enough the colors will be all around us! My brain will come around by Wednesday for some more thoughtful content. Tulips and dogwoods!

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Valentine’s Thoughts

I never understood the fuss about Valentine’s Day. In elementary school, it was a day that ostracizing the odd kid was officially approved of in the form of who didn’t get valentines. As the kid who claimed to be a cat (and later an alien), that kid was me. It didn’t get me down. It instilled a sense that I was in charge of my own happiness every day of the year. Just as every day, I’d try to bear the knocks and celebrate the compliments. I try to do my best every day of the year. Some times I’m going to have a bad day. Perhaps as a practical pessimist, I don’t have use for a day that is awful unless it’s wonderful.

But let me celebrate what I do like about Valentine’s:

  • Chocolate: Seasonal candy makes every holiday better. Cadbury eggs and candy corn and Valentine’s truffle boxes on sale after the holidays are awesome. As a kid I used to go to the chocolate shop the day after every major holiday and score some 75% off candy. 
  • Flowers: Not so much purchasing them, because they get kind of ragged and expensive this time of year. More that they are popping out of the ground. Here the crocuses are erupting by the hundreds now. The daffodil greens are up. The lenten roses are blooming. The little spring snowflakes are out. The world is at last offering up its bouquets after the winter.
  • Hand-made valentines: I feel like a genius when I make valentines out of doilies and construction paper. I always think they look awesome, and they definitely look more awesome than the pre made ones. Years ago a good friend made me one and I think it made my decade.

Also, it’s finally February! Today the sun sets at 5:50 PM. Every day has an extra hour of better sunshine than this day last month. The world teases with little flowers. Soon the sun will come out and all the trees will bloom. Baseball returns! Soon we shall be wearing short sleeves again. 

Cheer to your Monday and Valentine’s Week!SONY DSC   SONY DSC SONY DSC SONY DSC

Sports photography

When I go to sporting events, I like to take pictures. Sports photography is really challenging, especially if you operate on a limited equipment budget and don’t get any kind of special access. I’ll list a few challenges I’ve encountered, and how I solved them. I shoot with a Sony α-850, but learned on a Sony α-100, so my experiences should translate to any basic SLR camera.

Challenge 1: The lighting isn’t strong enough

Whether you are indoors or the light of day is fading, this immensely effects the kind of photos you can take. My camera is susceptible to graininess at higher ISO numbers, which I hate. I set the ISO to the highest number I can stand, then I shoot in aperture priority mode in the smallest f-number (largest aperture) possible at the zoom required. I like to turn down the exposure by a couple of stops; it is easier to add brightness to an image than to remove blur. You may also need to add some saturation if you under-expose.

I used this procedure to take the picture of Michael Phelps swimming, below. Incidentally, this is the picture for breast stroke and swimming on wikipedia, and for swimming on Facebook. If you aren’t trying to make money off your photos, you can have some great fun seeing how they spread if you add them to the creative commons. (support the creative commons!)

 

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Challenge 2: The lighting is not white light

This can happen both outdoors with twilight or cloudy conditions, or indoors with certain types of lighting. The indoors case is a lot harder to deal with because it is harsher and more unnatural. There are a couple of different strategies– you can be proactive and take a reference picture of a white object during your shoot. You can change your white balance to match this reference during then shoot, or later in the post processing (I post process in Aperture), you can set the temperature/tint for all the photos to the combination that makes the reference shot a neutral color. If you change angle, the color of the light may change, so if you shoot from many angles this gets hard no matter your strategy. I always do my color changes in post-production. If you wish to, it’s important to shoot in raw (rather than jpg), otherwise you can degrade the image.

The pair of images below show a picture with and without temperature/tint correction. (I have also increased the brightness and saturation, but little else.) Note that the skin tone is more ashen in the first picture. I used the bonnet and the goal posts to hone in on a good neutral.

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Challenge 3: The focal plane changes rapidly and fast movement

When shooting sports, I always want to shoot with the largest aperture. This way, I can shoot at a lower ISO (i.e., less noise) and still have fast photos. Additionally, uninteresting stuff in the background gets blurred out by the focal depth. However, this shallow focal range ruins the picture if the objects of interest aren’t in that range. For some events, getting the objects in the focal plane is harder than capturing without motion blur, so I increase my aperture to the f5-f8 area.

Below is a picture I took at a horse race. Horse races are the best example of what I described above– the horses thunder towards you so quickly that in the time it takes for a cheaper SLR to focus, the distance of the horse has changed a lot. If the focal depth is shallow, the horse is likely not in it. But there is plenty of natural light, so I can increase the f-number without getting too slow.SONY DSC

Happy photoing! There are myriad other sports photo problems to solve, but I think I’ve been long-winded enough for today.

 

The Beautiful Lab

Across the country, thousands of labs study thousands of topics. In my lab, we study nonlinear dynamics in electrochemical oscillators. The dynamics of these oscillators can be used to make math models for other oscillators we might be very interested in, like heart cells, breathing, and neurons in the brain. Oscillators and their dynamics show up in many places. In a previous post on synchrony, I discuss some of these dynamics.

My experiments aren’t particularly much to look at. The beauty in mostly in the data. But here are a few of my better snaps over the years. There can also be science in the photographic technique. The bottom two photos were taken using reverse lens macro, a cheap way to do great zoom shots.

From top to bottom the photos below show: the electrochemical 3 electrode cell, the variable resistance resistors for each electrode, and a capacitor. The featured image is of some resistors.

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Exotic Florida: A Zoo of Lost Pets

I’m late posting today, because we went up to Sarasota and had a photo expedition. We went to Sarasota Jungle Gardens, a private zoo garden with birds and reptiles and nice foliage. Most of the animals in their collection were the cast offs of collectors who lost their interest. A good reminder to be responsible when you choose a pet! Thankfully, the garden takes good care of their critters and we get to enjoy the aspects that make them so alluring (and then we can leave the parrots and their shrill greetings).

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Winter in Florida

Every year, I trek south to Florida for the holidays. The sun and warmth are great, but I especially like the feeling of going to a different world. The land is flat and riddled with little inlets and brackish creeks. Here in southwest Florida, there is a feeling that man does not control the wilderness. Things grow at an insane rate and they fight for space. The landscape takes on that wild, violent look. I like the greenery and the beaches and the boats and the sunsets all. And I like to drag my camera along for documentation.

Happy Friday!

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Summer is gone, waiting for spring

Tomorrow is the first day of December. In the last week, the last of our colorful leaves have fallen. Even the confused daisy shrub in my yard is no longer in bloom. The daylight is short, and the foliage is bleak. This time of year, I love to review photos from more colorful times. The colors will be back before very long. Starting in February, the Lenten roses and the crocuses will return. Until then, photos can be our flowers. Every year when spring breaks, I walk through the gardens at least once a week and see what new flower has opened.

Check out my Flickr feed for thousands of other photos. 95% of my Flickr photos are fair use for non-commercial purposes, so feel free to use them, but please attribute and link to my flickr.  Most of all I love seeing where my photos get used. (Side note: the first picture on the Wikipedia swimming article is mine. That’s neat!)

Here’s some color for your Friday.


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