Tuesday 10 March 2015

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Why an iPhone will never replace my DSLR

We recently pitted the iPhone 6 camera against the DSLR Canon 5D Mark II and the point-and-shoot Canon PowerShot SD1400-IS. The iPhone held its own in many areas, and it's unbeatable when it comes to portability.

And as the adage goes, "The best camera is the one you have with you."
But for those of us who make a living taking photos or count photography as a serious hobby, the camera phone will never replace a DSLR (digital single-lens reflex).
Here are my reasons why:
A variety of the lenses available for Canon Digital SLRs.
The biggest difference between a smartphone camera and a dedicated camera is the ability to use different lenses.The importance of good glass cannot be understated. High-quality lenses produce unparalleled sharpness and image quality. These photos look crisp, detailed, styled, and hyper-real. They look like photographs instead of snapshots.
In addition, a professional or "prosumer" camera allows you to use whatever lens is appropriate for the situation. If you are shooting sports, you can put on a zoom lens to get close to the action. If you are taking a portrait of someone, you can use a short telephoto lens. If you want to capture a crazy party, put on a wide-angle lens to get the entire scene. You get the idea.
The striking photo below, for instance, was taken from more than 50 feet away with a Nikon D90 and a 300-mm telephoto lens. An iPhone attempting the same photo would never have been able to zoom that closely without pixelating the entire image.

Manual settings

The iPhone, like almost all smartphones, is hopelessly lost in this category. The iPhone's default Camera app, which most people use, offers no way to manually adjust settings.
Here's why that's a big problem.
All cameras, including the iPhone and my Canon DSLR, are pretty dumb when it comes to determining proper exposure in all but ideal situations. Imagine a black-and-white photo. All cameras' automatic sensors want to turn everything in your photo into a dull, even gray. Shooting snow? Gray. Shooting jet-black asphalt? Gray. All photographers know this, and it's why every good photographer uses manual settings to compensate.
Now the iPhone does have manual settings, so long as you download an app like Manual or Snapseed. These are helpful and bring the smartphone closer to what I'm looking for in a camera, but ultimately they are mere approximations to what a true camera does. The shutter speeds and ISOs that smartphone cameras can handle - two out of three factors when determining proper exposure - are so limited that most of the time you are better off just letting the auto settings on the camera do its thing.

Sensor size

One of the biggest determinants in digital image quality is size of the image sensor in your camera. When it comes to that, smartphones simply can't measure up.
Digital camera sensors are full of millions of light-sensitive spots that record information about what is seen through the lens. The bigger the sensor, the more area for the camera to capture and record light. (In the old film days, the equivalent was the size of your film: A large-format camera that took 8-by-10 film always took far more detailed photos than those taken by a 35-mm camera.)

The verdict

All of this isn't to say that an iPhone, Samsung Galaxy S, or other smartphones aren't fine cameras. They are. Ultimately, the quality of photos comes down to skill level of the person taking them.
Hand an amateur an 8-by-10 large-format camera and they won't know what to do with it. Alternately, give a skilled photographer an iPhone and they can produce awesome, awe-inspiring work. (If you want to see some amazing iPhone work, check out the book Hashtag Sandy.)
But give me a choice, and I would always pick my DSLR.



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