Schedule

Schedule

Saturday, November 29

1417287600 The Tech Guy

Sunday, November 30

1417374000 The Tech Guy
1417388400 This Week in Tech

Monday, December 1

1417456800 Tech News Today
1417460400 Triangulation
1417465800 iPad Today
1417478400 Tech News 2Night

Tuesday, December 2

1417543200 Tech News Today
1417546800 MacBreak Weekly
1417554000 Security Now
1417561200 Before You Buy
1417564800 Tech News 2Night
1417568400 All About Android
1417577400 Padre's Corner

Wednesday, December 3

1417624200 FLOSS Weekly
1417629600 Tech News Today
1417633200 Windows Weekly
1417640400 This Week in Google
1417651200 Tech News 2Night
1417653000 Android App Arena
1417658400 Ham Nation

Thursday, December 4

1417716000 Tech News Today
1417719600 Know How...
1417723200 Marketing Mavericks
1417728600 Coding 101
1417732200 Home Theater Geeks
1417737600 Tech News 2Night
1417739400 The Giz Wiz

Friday, December 5

1417802400 Tech News Today
1417806000 This Week in Law
1417824000 Tech News 2Night

Saturday, December 6

1417892400 The Tech Guy

Sunday, December 7

1417978800 The Tech Guy
1417993200 This Week in Tech

Monday, December 8

1418061600 Tech News Today
1418065200 Triangulation
1418070600 iPad Today

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Android App Arena
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Tech News 2Night
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Twitter Tracks Your Apps

iFive for the iPhone

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This Week in Google
Episode #277: FU EU November 26th, 2014

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Windows Weekly

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FLOSS Weekly
Episode #317: Pentaho November 26th, 2014

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Before You Buy

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Nexus Player, Lollipop love/hate, and patent wars.

Security Now
Episode #483: Let's Encrypt November 25th, 2014

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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

Connect with us!

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Contribute to our show! Send us an email at knowhow@twit.tv Join our Google+ Community and join in the conversation. There are nearly 3000 of you guys in there chipping in show ideas and helping each other out. It's a fantastic resource.

Thanks to Cachefly for the bandwidth for this show.

Runtime: 38:59

People: Leo Laporte