How-To Geek

Harry Guinness-

Harry Guinness

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About Harry Guinness

Harry Guinness writes occasionally when he’s not busy skiing, sailing, partying, lifting weights, or otherwise dodging responsibility. His main areas of interest are himself, gin, and crazy people with interesting stories to tell. When people won’t pay him to write ill-thought-out opinion pieces, he covers photography, technology, and culture. You can follow him on Twitter.

Latest Articles

How to Clear Your Furthest Read Page on Kindle

It's really annoying when you're trying to re-read an eBook and your Kindle or Kindle app keeps trying to get you to jump to the end because that's the "Furthest Location Read.

How to Not Lose Your Stuff

Some people seem unable to go ten minutes without losing something, whether it’s their phone, their keys, their wallet, or just their self-respect.

How to Check the Serial Number On Your Camera Gear

Every bit of camera gear you own has a unique serial number to identify it.

What You Should Know Before Insuring Your Tech Gear

It’s amazing how it’s become almost unthinkable to go about your day to day life without a fragile chunk of glass and expensive electronics in your pocket.

How to Remove Almost Any Image From a White Background In Two Quick Steps

Cutting an object out from a white background can be a pain.

Amazon Kindle on a pile of books
How to Sell or Give Away Your Kindle

Kindles have an incredible lifespan.

How to Travel With Your Camera Gear

Travelling with your camera gear can be a difficult time for photographers; just ask Michelle Frankfurter, who recently lost $13,000 worth of gear after her carry on was gate checked on an American Airlines flight.

What to Do If Your Kindle Is Lost or Stolen

Kindles, like any other small electronic devices, are easy to lose; they're also a good target for thieves.

How to Use Instapaper in the EU

Instapaper is currently blocked in the EU because of the General Data Protection Regulation (GDPR) laws that went into force in May.

How to Protect Your Camera and Lenses from Damage, Dust, and Scratches

The biggest problem with photography gear is that it’s both fragile and expensive.

What’s the Difference Between Canon’s Regular and L-Series Lenses and Which Should You Buy

Canon sells regular and L-series lenses (the "L" stands for luxury).

What Makes a Cine Lens Different From Regular Lenses?

Good camera lenses don’t come cheap, but if you’re window shopping on Amazon or B&H Photo, you might notice some extreme outliers: cine lenses (or cinema lenses) designed specifically for filmmakers.

What to Do If Your Kindle is Running Slowly or Freezing

While they’re never the snappiest devices, if your Kindle is feeling sluggish---or freezing altogether---we’re here to help.

What is a UV Filter and Do You Need it to Protect Your Camera Lens?

A UV filter is a glass filter that attaches to the front of your camera lens and blocks ultraviolet rays.

What is a T-Stop in Photography and Videography?

If you start to move from photography into videography, you’ll quickly start hearing about something called a t-stop, which are a combination of a lens' f-stop and light transmittance value.

How to Shoot RAW Photos on Your iPhone

RAW is an image format that contains a lot more data than JPG.

What is Optical Distortion in Photography?

Lenses aren’t just dumb tubes that you attach to your camera; they manipulate light in complex ways.

What to Do If Your iPhone Is Getting a Bad Signal

There are dozens of factors that can affect your cell service—from your distance to a tower to the weather—but what can you do if, for some reason, your iPhone suddenly isn’t getting a good signal? Let’s find out.

How to Take Good Long Exposure Photos

In long exposure photography, you take a picture with a slow shutter speed—generally somewhere between five and sixty seconds—so that any movement in the scene gets blurred.

How to Select and Use a Tripod

A tripod is one of the most important—and often overlooked—pieces of photography gear.

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