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January 23, 2015
Posted in Tips

Demystifying HD Video on a DSLR Camera – Canon Video Tutorials

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CanonUSA on YouTube posted three tutorial videos about how to capture your precious moments on video. The tutorial above is called “Introduction to Storytelling”.

 

Demystifying HD Video on a DSLR Camera: Lesson 2 – Basic Camera Settings

 

Demystifying HD Video on a DSLR Camera: Lesson 3 – Tips for Capturing Great Video

January 21, 2015
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Posted in Tips

Adobe Lightroom 5 Tips & Tricks Round-up

Time for a new Adobe Lightroom 5 tips and tricks round-up. Enjoy.


Tips for Retouching a Night Photograph using Lightroom – Digital Photography School

How To Move Your Lightroom Photos To Another Drive – Terry White

 

Articles:

 

And more videos…


Mastering the Lightroom Adjustment Brush – tuts+


Lightroom Spot Removal Tool – FroKnowsPhoto

January 19, 2015
Posted in Tips

How To Photograph Snow (CDLC)

Canon Rumor

The Canon Digital Learning Center posted an article with tips and tricks about how to photograph snow.

The biggest challenge when photographing snow lies in your camera’s metering system.

No matter how sophisticated the metering in an SLR camera is, it’s engineered to assume it’s reading “normal” subjects, of an “average” brightness. Photograph a landscape in summertime, with green grass, dark green trees, blue sky and white clouds, and the different brightness levels in the scene often average each other out. Much of the time, the meter will get these scenes absolutely correctly exposed. In simplified terms, it does this by averaging bright and dark parts of a scene, so the final exposure renders the overall brightness almost a middle shade of gray.

Read the tutorial at CDLC –>

January 14, 2015
Posted in Tips

Canon EOS 7D Mark II Timelapse Video Tutorial

This short video comes from our friends at Photography Bay. The EOS 7D Mark II has a built-in time-lapse functionality. The tutorial explains the settings and shows how to do it. Particularly useful: the video shows how to overcome the 99 pics limit.

Want to know more about the game changing EOS 7D Mark II? Read about the EOS 7D Mark II’s excellent weather sealing, the highly advanced AF, and the industry leading high ISO performance (have a look here too). All our coverage on the EOS 7D Mark II can be seen here (and there is a lot).

Timelapse

[via Photography Bay]

December 23, 2014
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Posted in Reviews, Tips

Canon EOS 7D Mark II In-Depth Video Tutorial Series

CanonUSA on YuoTube posted a set of in-depth tutorial videos about the top features and functions of Canon’s brand new EOS 7D Mark II. The video above highlights the broad coverage of the 7D2’s auto-focus system. The other videos:

Want to know more about the game changing EOS 7D Mark II? Read more about the EOS 7D Mark II’s excellent weather sealing, the highly advanced AF, and the industry leading high ISO performance (have a look here too). All our coverage on the EOS 7D Mark II can be seen here (and there is a lot).

Canon EOS 7D Mark II price check: Amazon, B&H, Adorama, Canon USA, Digitalrev, eBay EOS 7D Mark II Tutorial

December 19, 2014
Posted in News, Tips

How To Detect an Exoplanet Using Just a Canon Rebel XS

To detect planets orbiting around other stars you do not need an enormous telescope or equipment that will break your bank. You can do it using a Canon Rebel XS, a cheap telephoto lens, and a barn door tracker, i.e. something that helps with the tracking of the stars.

On IEEE Spectrum, David Schneider describes how he did it. The grounding idea is to apply the transit detection technique. In other words: you can use an ordinary DSLR to detect stars that become less bright during the time their planets are passing between the star and the point of observation (that’s you and your camera).

What’s the barn door tracker? To do what David Schneider did, you need a device (where you’ll mount the camera on) that can compensate for the rotation of the earth. Without this device, you would picture star trails instead of a sharp snapshot.

Using a Canon Rebel XS (around $200 on Amazon or eBay, a manual-focus Nikon 300mm telephoto lens (around $100 on eBay), a Nikon to Canon adapter (around $15 on Amazon), and the mentioned self-made tracking device, Schneider framed HD 189733, a star with known exoplanets that orbit the star every 2.2 days. In order to detect the transit of the planet, Schneider shot 50 seconds exposures for 3 hours. The transit of the planet lasted 108 minutes.

Says Schneider:

The hardest part of the whole project proved to be waiting for an opportunity to observe the transit of HD 189733’s exoplanet, which takes place once every 2.2 days. That sounds frequent, but transits that occur during daytime or are too close to the horizon are impossible to observe. […]  And of course, I needed clear skies.

Finally, after weeks of waiting, an opportunity came in mid-October. I recorded images for almost 3 hours, beginning about a half-hour before the start of the 108-minute transit. That, I figured, would capture the transition from normal brightness to ever-so-slightly dimmed and back to normal again.

Obviously you can’t see the transit just by looking at the pictures. You have to do some computing stuff. Using the free astronomical image processing software Iris and then MS Excel, Schneider made

[…] differential-photometry calculations—that is, comparing HD 189733 with one of […] four reference stars to compensate for changes in atmospheric conditions. The scatter in the final results was about the same size as the signal I was attempting to measure, but the general dip in brightness was easy enough to discern nevertheless. The average magnitude of the target star diminished and recovered just as the exoplanet’s transit began and ended.

The video on top is where David Schneider explains the process, and shows how he did it. definitely impressive and cool stuff! You can read more about it here at IEEE Spectrum, where Schneider details all aspects of the process.

[via PetaPixel]

 Canon Rebel XS

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