Schedule

Schedule

Tuesday, April 28

1430240400 Tech News Today
1430244000 MacBreak Weekly
1430253000 Security Now
1430262000 Tech News 2Night
1430265600 All About Android

Wednesday, April 29

1430321400 FLOSS Weekly
1430326800 Tech News Today
1430330400 Windows Weekly
1430337600 This Week in Google
1430348400 Tech News 2Night
1430350200 Android App Arena
1430355600 Ham Nation

Thursday, April 30

1430413200 Tech News Today
1430416800 Know How...
1430422200 Marketing Mavericks
1430427600 Home Theater Geeks
1430434800 Tech News 2Night
1430436600 The Giz Wiz

Friday, May 1

1430499600 Tech News Today
1430503200 This Week in Law
1430514000 Before You Buy
1430521200 Tech News 2Night

Saturday, May 2

1430589600 The Tech Guy

Sunday, May 3

1430676000 The Tech Guy
1430690400 This Week in Tech

Monday, May 4

1430758800 Tech News Today
1430762400 Triangulation
1430767800 iPad Today
1430775000 Coding 101
1430780400 Tech News 2Night

Tuesday, May 5

1430845200 Tech News Today
1430848800 MacBreak Weekly
1430857800 Security Now
1430866800 Tech News 2Night
1430870400 All About Android

Wednesday, May 6

1430926200 FLOSS Weekly
1430931600 Tech News Today
1430935200 Windows Weekly
1430942400 This Week in Google
1430953200 Tech News 2Night
1430955000 Android App Arena
1430960400 Ham Nation

Thursday, May 7

1431018000 Tech News Today
1431021600 Know How...
1431027000 Marketing Mavericks
1431032400 Home Theater Geeks
1431039600 Tech News 2Night
1431041400 The Giz Wiz

Most Recent Episodes

iPad Today

Apple Watch vs. the iPad

Triangulation

Luria Petrucci, AKA Cali Lewis talks about her latest project Geeks Life and more.

Coding 101

Internal Iterators, SMART Dynamically typed variables, and HHVM vs. ASP.NET.

Tech News Today

Google announced a new initiative today: The Patent Purchase Promotion.

This Week in Tech

Hands on the Apple Watch, Tesla battery, tractor EULAs, and more.

The Tech Guy
The Tech Guy 1182 April 26th, 2015

Managing your cell data, soundbars, top Android phones, and more.

The Tech Guy
The Tech Guy 1181 April 25th, 2015

Leo Laporte's first impressions of the Apple Watch.

Tech News 2Night

Quick tips for feeling better about your facebook usage.

Before You Buy

Leo Laporte unboxes the Apple Watch.

This Week in Enterprise Tech

Facebook vs. Spammers and Twitter vs. Trolls.

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