Digital Camera - Ken Gilbert
Digital Camera - Ken Gilbert
Digital Camera - Ken Gilbert
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128<br />
KITzONE<br />
Slr grouP teSt<br />
whatsoever. On the other hand, if<br />
you’re ofthe opinion that video<br />
shooting is best left to camcorders,<br />
the wide range of advanced, photofriendly<br />
controls provided on the<br />
50D and E-30 make them appealing.<br />
Firmly ensconced in the opposite<br />
camp, the Canon 550D brings<br />
powerful, High-Definition video<br />
features to the party –features<br />
unseen as yet in this price range.<br />
.<br />
SIzE IS EVERYTHING<br />
For most high-tech gadgets, including<br />
digital compacts, smaller is sexier,and<br />
you’ll often pay a premium for ‘tiny’.<br />
There’ssomething to be said for<br />
lightweight, compact SLRs in this<br />
pricerange, especiallyifyou’reinto<br />
travel or outdoor pursuits. However,<br />
there’s a real compromise in terms of<br />
handling –abigger build givesSLRs a<br />
more natural feel, making them easier<br />
to use and guarding against camera<br />
shake at slower shutter speeds.<br />
Manyofthe latest SLRs go<br />
the extra mile to give you shake-free<br />
shots, utilising various forms of<br />
How we test SLRs advice you can trust<br />
There are two strands to our SLR<br />
test process. The first involves<br />
testing each camera under real world<br />
conditions, where they are put<br />
through their paces in everyday<br />
scenarios ranging from dull interiors,<br />
through to gloomy overcast days and<br />
bright sunshine. All features and<br />
functions are tested as the camera<br />
would be used on a day-to-day basis.<br />
The second strand of our test<br />
process involves testing each SLR<br />
within <strong>Digital</strong> <strong>Camera</strong>’s ownspecially<br />
constructed controlled testing<br />
environment. Each camera is fitted<br />
<strong>Digital</strong><strong>Camera</strong> July2010<br />
Below Introducing<br />
newfeatures such<br />
as hD video has led<br />
to aslightincrease<br />
in the weightof<br />
mid-range SLR<br />
camera bodies<br />
with aSigma 50mm f/1.4prime lens<br />
and industry-standardcolour (x-Rite)<br />
and greyscale (Q-14) step charts are<br />
shot under daylight bulbs, with the<br />
same white balance, ISO and aperture<br />
settings used on each SLR.<br />
The RAW files from each SLR are<br />
then processed with Imatest software<br />
and aseries of benchmarks fornoise,<br />
colour accuracy,exposureaccuracy<br />
and dynamic range are generated.<br />
youcan see the benchmarks forthis<br />
test on page 139.<br />
See Trusted Tests on page 112<br />
for more information on this process.<br />
Shop smart <strong>Camera</strong> systems<br />
A vital<br />
anti-shake technology. Canon and<br />
Nikon favour ‘optical’ stabilisation<br />
built intothe lens, with their IS<br />
(ImageStabilizer)and VR (Vibration<br />
Reduction) systems. These work in<br />
essentiallythe same ways,using an<br />
extra micro-processor-controlled,<br />
motion sensitive group of elements.<br />
The Olympus, Pentax and Sony<br />
cameras in this group feature sensorshift<br />
stabilisation, which is built into<br />
the camera body so that the sensor<br />
itself is shifted to compensate for any<br />
movement in the camera. It’s a system<br />
that became popular in camcorders,<br />
but has made the transition to SLRs<br />
(and compacts) extremely well.<br />
Sensor-shift stabilisation is generally<br />
not quiteascompetent as lens-based<br />
optical stabilisation, but it’sstill<br />
worth having,and the fact thatit<br />
factor when choosing any ‘system’ camera, like<br />
an SLR, is that you’re buying into the depth, breadth<br />
and quality of a complete system rather than just the<br />
camera itself. For example, buy a Canon or Nikon and<br />
you get access to an almost endless list of available<br />
lenses, flashguns and other own-brand or third-party<br />
accessories. The diversity for some other makes can be<br />
a little more limited or come at a higher price. For<br />
example, buy aqualitystandardzoom lens and you’ll pay<br />
£800 for the Canon EF-S 17-55mm IS uSM, as opposed<br />
to a monstrous £2,000 for the Olympus 14-35mm f/2<br />
SWD. It pays to understand what you’re committing to.<br />
works with any lens you decide to use<br />
is another point in its favour.<br />
The control system is avital area of<br />
camerahandling and, here, the main<br />
choiceisbetween acomplexarray<br />
of dedicated buttons for quick access<br />
to araft of essential settings, or a<br />
simplified, less clutteredlayout. More<br />
buttons canmakefor moreconfusion<br />
at first,but having fewerbuttons runs<br />
the risk of burying important<br />
parameters in relatively inaccessible<br />
menus, making them hardtoget at<br />
and adjust when you’re in a hurry.<br />
PAYING FOR THE VIEw<br />
At the higher end of the price bracket,<br />
youcan expect to getabetterquality<br />
pentaprism viewfinder,instead of the<br />
cheaper pentamirror viewfinders<br />
usuallyfitted to cheaper SLRs. This is<br />
For most high-tech gadgets, smaller is sexier.<br />
Butwhile youoften payapremium for‘tiny’,<br />
it comes at the expense of handling – a bigger<br />
build definitely gives SLRs a more natural feel<br />
<strong>Digital</strong> editor Ali Jennings shoots acolour step chartfor this test<br />
in the <strong>Digital</strong> <strong>Camera</strong> controlled testing environment