This photograph was taken by a lens with some “obstruction” on the front element. Aside from the blurry patch of nastiness in the bottom portion of the frame, the rest of the image looks pretty decent. What do you think the “obstruction” is? A little dirt? A smudge where the photographer accidentally touched the front element? A scratch? The answer is a little closer to a scratch than a smudge…
Click here to see the answer
It’s not every where you get to watch and hear someone picking the brain of a National Geographic photographer. The Topeka and Shawnee County Public Library recorded this video interview with photographer Jim Richardson and asked him to share about his experiences and words of advice. Richardson also has an interesting FAQ page on his website that answers a lot of questions about shooting for the famous yellow-bordered magazine.
Photographer Ben Canales created this great video tutorial teaching the basics of shooting the night sky. He goes over how to shoot quick test shots to set up your composition before discussing more in-depth tips and tricks for capturing the final shot, including the “Rule of 600″:
[...] the quickest way to determine the longest exposure that is possible for any given focal length lens, without the stars streaking, is to divide that focal length into 600. (This is the formula for 35mm. Larger formats are laxer, smaller formats more unforgiving). [#]
For example, with a 50mm lens on a full frame camera, you can only expose for 12 seconds (600/50=12) before the stars turn into star trails. It’s a good rule of thumb to keep in mind!
(via Fstoppers)
Learning how to control depth of field with your camera isn’t too difficult, but do you know the science behind how it works? This uber-educational 20-minute video lesson gives a thorough explanation of depth of field and the different factors that affect it. It was made by artist Justin Snodgrass, and is also available for download (and in parts) over on his website.
(via Petrucci Francesco)
Ovation TV made this interesting video showing acclaimed photographers Albert Maysles, Sylvia Plachy, Andrew Moore, Timothy Greenfield Sanders and Gregory Crewdson answering various questions about photography and sharing words of advice regarding things they’ve learned over the years.
(via f stoppers)
Ever wonder what actually happens between the time you press the shutter button on a DSLR and when the image shows up on the LCD screen? Canon made these two videos explaining how their DSLR cameras work and how they use CMOS sensors to turn photons into photos. You’ll probably find this pretty interesting if you’ve never learned about CMOS sensors before. For a more in-depth lesson, check out the sensor tutorial over on Cambridge in Colour.
If you want to know the ins and outs of shooting a college basketball game, check out this awesome behind-the-scenes video with pro sports photographer Miguel Olivella. In it, he walks us through things like where to be, what gear to use, camera settings, and various tricks he has under his sleeve that help him get the perfect shot.
(via Scott Kelby)
Like the Pen Tool tutorial we shared last month, here’s another awesome tutorial by Sean Armenta showing how to use the Healing Brush and Patch Tool in Photoshop. Perhaps these are two tools that you’ve never gotten around to learning how to use. If that’s you, watch this video and you’ll soon have two new weapons in your portrait retouching arsenal.
(via f stoppers)
Have you always wondered how to use the Pen Tool in Photoshop but have never gotten around to learning it? f stoppers published this uber-informative video tutorial by Sean Armenta teaching how it’s used and why it’s a tool that everyone should learn. The teaching is done on a Mac, so if you have a PC, just substitute CTRL for CMD and ALT for OPT.
External hard drives are a convenient way to store your digital photographs, but they have finite lifetimes and eventually fail. Failing drives have a number of distinctive sounds that can warn you and give you some time to start a data-exodus to a healthier hard drive. Datacent, a data recovery company, has a useful page on which you can listen to some of the most common “bad drive sounds”. These are categorized by manufacturer, and include things like stuck spindles, disk heads crashing, accessing bad sectors, and bad bearings. If your drive makes any of these sounds while your photographs are still accessible, begin evasive maneuversimmediately!
Hard drive sounds (via Boing Boing)
Image credit: Drive Destruction 11 by Nedster78
