Schedule

Schedule

Thursday, December 18

Friday, December 19

1419012000 Tech News Today
1419015600 This Week in Law
1419033600 Tech News 2Night

Saturday, December 20

1419102000 The Tech Guy

Sunday, December 21

1419188400 The Tech Guy
1419202800 This Week in Tech

Monday, December 22

1419271200 Tech News Today
1419274800 Triangulation
1419280200 iPad Today
1419292800 Tech News 2Night

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1419357600 Tech News Today
1419361200 MacBreak Weekly
1419368400 Security Now
1419375600 Before You Buy
1419379200 Tech News 2Night
1419382800 All About Android
1419391800 Padre's Corner

Wednesday, December 24

1419444000 Tech News Today
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1419465600 Tech News 2Night

Thursday, December 25

1419530400 Tech News Today
1419534000 Know How...
1419537600 Marketing Mavericks
1419543000 Coding 101
1419546600 Home Theater Geeks
1419553800 The Giz Wiz

Friday, December 26

1419616800 Tech News Today
1419638400 Tech News 2Night

Saturday, December 27

1419706800 The Tech Guy

Sunday, December 28

1419793200 The Tech Guy
1419807600 This Week in Tech

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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!

Download or subscribe to this show at twit.tv/kh.

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