Schedule

Schedule

Tuesday, March 31

1427821200 Tech News Today
1427824800 MacBreak Weekly
1427833800 Security Now
1427842800 Tech News 2Night
1427846400 All About Android

Wednesday, April 1

1427902200 FLOSS Weekly
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1427929200 Tech News 2Night
1427931000 Android App Arena
1427936400 Ham Nation

Thursday, April 2

1427994000 Tech News Today
1427997600 Know How...
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1428008400 Home Theater Geeks
1428015600 Tech News 2Night
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Friday, April 3

1428080400 Tech News Today
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Saturday, April 4

1428170400 The Tech Guy

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1428256800 The Tech Guy
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1428339600 Tech News Today
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1428348600 iPad Today
1428355800 Coding 101
1428361200 Tech News 2Night

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1428507000 FLOSS Weekly
1428512400 Tech News Today
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1428523200 This Week in Google
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Thursday, April 9

1428598800 Tech News Today
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1428607800 Marketing Mavericks
1428613200 Home Theater Geeks
1428620400 Tech News 2Night
1428622200 The Giz Wiz

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Know How... 44

Cameras 101

May 16 2013

In today's episode, Leo explains the things you should know to get the most out of your digital camera.

Full shownotes to come, but here's a short version:
The three parameters we covered in today's episode were shutter speed, aperture and ISO.

Your shutter speed setting on your camera determines how long the shutter is open when you're taking pictures. It's displayed as a fraction of a second. If you're taking pictures of quick actions, you'll want that shutter to move quickly.

However, you're going to need a well lit subject if your shutter is open for a small amount of time. That's where aperture comes in. Aperture is the hole where light comes in. The larger your aperture, the more light is coming into the camera sensor. In camera lingo, aperture is delineated by "f-numbers" - the lens has a set of "f-stops" that you can set that f-number to.

So what's ISO then? ISO amplifies the image. The higher the ISO, the more noise you'll see in the image. A high ISO means that the camera can amplify the image a lot.

We touched upon the differences between RAW and JPEG shooting. JPEG might create smaller file sizes, but they are a lossy format. Once you take that picture, the only data you have is in that JPEG. RAW shooting keeps all the data the camera is seeing. That leads to much larger file sizes, but you can go in and change a multitude of factors after the fact.

Feedback from our know-it-alls

We asked you "What's your favorite Android or iOS camera app? Use #twitkh and your answer could appear on 'Know How...'"

Cory Futrell @Coryfutrell
@iyaz Camera+ for iOS for grid view, focus and exposure lock, timer, burst mode, and a good selection of post editing tools. #twitkh

Ben Foote @Benpocalypse
@iyaz I really like HDR Camera+ on android since my galaxy nexus doesn't offer HDR. #twitkh

James Freeman @James_A_Freeman
Best camera app: The stock camera app on the galaxy s4 is the best I have used #twitkh

Google+ Community Spotlight

Want to know how to back up your SMS messages on Android? Hector did and our great community figured out a way. Big thanks to our moderator Dan Phillips for helping out Hector.

Read about it here

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Thanks to Cachefly for the bandwidth for this show.

Runtime: 38:59

People: Leo Laporte