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The iPhone’s pre-installed Camera app is great, but it’s not the only iOS
photography option. Many apps can be purchased that offer DSLR-like control,
allowing you to adjust shutter speed, ISO sensitivity, white balance, focusing,
exposure compensation, metering and more and even in the Camera app, there are
various shooting modes over and above the standard shot functions. HDR mode
allows you to shoot a sequence of images at different exposures and combine them
into a final image with increased dynamic range. You can set your iPhone to use HDR
automatically or manually; go to Settings > Camera and use the Auto HDR switch.
Panorama mode is also available (PANO on the Camera app’s mode selection
wheel), as is the ability to shoot a burst of images to capture a fast action sequence,
just tap and hold the on-screen shutter button.
The lens
By their ver y nature, phones are designe d to be slim and eas y to car r y in your pocket
or handbag, so their cameras have to be similarly low profile too. A sleek new phone
with a hefty lump of a lens attached to one end is not the most ergonomic design
choice. That means the lens is small, has no physical optical zoom function and is
usually a fixed focal length that is roughly equivalent to a 25mm DSLR full-frame
lens. As mentioned above, the lenses have a fixed aperture that falls between
f/1.7 and f/2.3. This fixed focal length issue has given rise to many third party
manufacturers such as Olloclip and CamKix supplying clip-on lenses that can
change the apparent focal length of the camera’s lens. They vary in size and include
10x macro, 0.67 wide angle, 180° fisheye and 12x zoom lenses.
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