Canon T4i Description
Canon is proud to introduce its most sophisticated Rebel ever—the EOS Rebel T4i DSLR! Built to make advanced photography simple and fun, the
new Rebel T4i delivers phenomenal image quality, high performance, and
fast, intuitive operation. This EOS Rebel amps up the speed with the
powerful DIGIC 5 Image Processor that helps make high-speed continuous
shooting of up to 5.0 fps possible—great for capturing fast action. An
18.0 Megapixel CMOS sensor ensures that every image is shot in superb,
high resolution; and an extended ISO range of 100–12800 gives
photographers the opportunities to take the Rebel T4i into more shooting
situations than ever before. A 9-point all cross-type AF system
(including a high-precision dual cross f/2.8 center point) delivers
improved autofocus performance, and a new Hybrid CMOS AF System
increases autofocus speed when shooting photos and video in Live View.
For users interested in creating impressive videos, the Rebel T4i is
ready to help you create your next masterpiece. Movie Servo AF provides
continuous focus of moving subjects, so you never miss a moment. A
built-in stereo microphone and manual audio level adjustment helps
ensure that your audio will match the stunning quality of your video.
First ever for an EOS Rebel, the Rebel T4i features a Vari-angle Touch
Screen 3.0-inch Clear View LCD monitor II, which allows fast and
intuitive camera operation. Add compatibility with Canon’s proven EF and
EF-S lenses and a slew of EOS accessories, the Rebel T4i is an
incredibly versatile tool for creating the images and videos you
envision.( amazon.com )
Image quality
Overall, the photo and video quality of the T4i still rates as
excellent, though at high ISO sensitivities it's slightly surpassed by
the T3i; it looks like either the blue channel in the new sensor just
isn't as sensitive as the previous one or Canon's processing the heck
out of it. JPEGs are fine up through ISO 400 if you're not a pixel
peeper; if you are, you'll find even slightly out-of-focus areas start
to show some artifacts as low as ISO 200. At high ISO sensitivities the
noise reduction is relatively intelligent, with suppression artifacts
only in the dark areas and on some high-contrast edges. I suggest you
don't use the default Auto Picture Style when shooting JPEG in low
light, because it boosts the contrast and you really lose a lot of
shadow detail. If you shoot raw, you've got latitude up to about ISO
1600, but you'll end up applying a lot of luminance NR to get rid of the
hot pixels.
The T4i is capable of reasonably accurate color -- just not in
its default Auto Picture Style setting. Auto pushes the contrast and
saturation so that you lose detail in shadow areas and normally bright,
saturated colors clip highlight detail. That's why Canon offers four
different non-special-effect color settings: Auto, Standard, Neutral,
and Faithful. My normal Canon setting is Neutral with sharpening bumped
up a couple notches, but at the very least dial it back to Standard,
which is still better than Auto.( reviews.cnet.com)
Amazing Capture and Processing Power
14-bit A/D Conversion
With
14-bit analog-to-digital conversion, the EOS Rebel T4i captures and
records images with remarkable gradations and detail in subtle tones and
colors, resulting in more realistic and detailed images. By recording
up to 16,384 colors per channel the EOS Rebel T4i ensures that the fine
detail found in subjects like foliage, sky and water are preserved and
recorded with a tremendous level of accuracy, ensuring gorgeous results
18.0 Megapixel CMOS (APS-C) sensor
The
EOS Rebel T4i features Canon’s amazing 18.0 Megapixel CMOS
(Complementary Metal Oxide Semiconductor) sensor. Perfect for
enlargements or for cropping detailed portions of the composition, the
EOS Rebel T4i’s sensor captures images with exceptional clarity and
tonal range. This first-class sensor features many of the same new
technologies used by professional Canon cameras to maximize each pixel’s
light-gathering efficiency and has center pixels that aid in the EOS
Rebel T4i’s accurate AF performance. This APS-C size sensor creates an
effective 1.6x field of view (compared to 35mm format).
ISO 100–12800 and expandable to 25600 in H mode
Thanks
to its new DIGIC 5 Image Processor, the EOS Rebel T4i features an
expanded ISO range of ISO 100–12800 (expandable to 25600 in H mode) that
makes shooting possible in situations previously unthinkable without
flash. The Rebel T4i, with the DIGIC 5 Image Processor’s remarkable
noise-reduction technology sets a new standard for Rebel cameras and
low-light photography. Along with one of Canon’s EF or EF-S lenses with
Optical Image Stabilizer, the EOS Rebel T4i can record beautiful images
even when light sources are scarce.
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