Posts Tagged ‘learn’

The First Photographs of US Presidents

Here’s your interesting piece of photo trivia ‘o the day: John Quincy Adams, the sixth President of the United States, was the first president to have his photograph taken (the earliest photo still in existence, at least). The daguerreotype was shot in 1843, a good number of years after Adams left office in 1829.
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The Science Behind Tintype Photography

Here’s another video featuring SF photo shop Photobooth and its tintype portraits. Will and Norm of Tested talk to shop owner Michael Shindler, who goes in depth into how tintype photographs are created and the science behind the process.

The Economics of Leica Camera Pricing

Have you ever wondered how Leica chooses its pricing for its high-end cameras? J Shin has written up a great post over at Leica Rumors that offers a geeky and lengthy explanation of the economics behind the company’s pricing decisions:

Every time there is any kind of a product-related announcement here and elsewhere, there are a number of invariable comments complaining about and/or defending Leica’s price strategy. In making these comments, people make references to various economic and noneconomic reasons why Leicas are priced the way they are. This essay is an attempt to show that, basically, almost everybody is right, at least when it comes to Leica’s profit motives. Rather than nefarious greed, devious psychological warfare, and, as some often mention, Dr. Kaufmann’s ignorance of Leica fandom, Leica prices are basically a function of mathematical inevitability.

The Mystery of Leica Pricing Explained [Leica Rumors]

How to See and Harness the Four Main Types of Light

Here’s a 10 minute photography lesson by Karl Taylor on the four main types of light: transmitted, reflected, soft, and hard. Understanding these concepts can revolutionize the way you see and shoot scenes.

(via Silber Studios)

How Digital Camera CCD Sensors Work

Digital camera sensors come in two flavors, charge couple device (CCD) sensors and complementary metal–oxide–semiconductor (CMOS) sensors. In this video, Bill Hammack the Engineer Guy offers a short explanation of how CCD sensors capture and store images, and how a color filter array is used to capture color photos.

HD Video Explained: Why 720p is Better than 1080i

High definition video recording is a standard feature on digital cameras these days. If you’ve never really understood the terms 1080p, 1080i, and 720p, here’s a short and sweet explanation that’ll bring you up to speed. Benjamin Higginbotham of Technology Evangelist describes the differences between varieties and why you can consider 720p “better” than 1080i.

An 8-Bit Explanation of the Three Basic Components of Exposure

Matthew Gore of Light & Matter created this beginner-friendly video tutorial on the three basic elements of exposure: aperture, shutter speed, and ISO. It’s explained with easy to understand illustrations and examples, and features graphics and sounds that are reminiscent of old 8-bit video games. You can also find a text-based version of the tutorial here.

The Three Basics of Photography (via Xatakafoto)

Exploding Photographers, Disappearing Clothes, And the Development of Film

It’s been a while since I wrote a history article and two or three people seemed to like them. I’ve pretty much covered the development of early cameras and lenses so it’s time to consider the way we recorded those images so other people could see them. No, I’m not talking about Facebook. I’m talking about film. Actually, I’m talking about even before film, mostly, but I really wanted to work that ‘development of film’ bit into the title. Pretty great, isn’t it? OK, maybe not.
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How to Photograph International Space Station Flyovers

Photographer Shane Murphy has written up an informative step-by-step tutorial on how you can photograph the International Space Station as it whizzes by overhead.

First things first, the most important thing to do is to plan well. Forward planning is vital to any night sky shot, along with a steady tripod and a warm coat. There are quite a few websites and twitter feeds that can help you with your planning. Even though it only takes about an hour and a half for the ISS to complete an orbit of the planet, you could be waiting quite some time under the night skies before the station appears above. The station only appears for a short time (about 1-2 weeks) and then re-appears again many weeks later. This is due to the orbit of the station above earth.

You can check out a collection of ISS photographs he has taken here.

Imaging the ISS (via Boing Boing)


Image credit: Photograph by Shane Murphy and used with permission

Advanced Image Sensor Concepts Explained with Beer

When German image sensor scientist Joachim Linkemann gave a talk called “Advanced Camera and Image Sensor Technology” at Automate 2011 back in March 2011, he tried to boil things down to terms people could understand and ended up using beer to illustrate the concepts. If you want to learn about how things like signal-to-noise, dynamic range, and dark noise would work if a glass of beer was the pixel on an image sensor, check out the PDF slideshow.

Advanced Camera and Image Sensor Technology (via Image Sensors World via Rob Galbraith)