วันอังคารที่ 23 เมษายน พ.ศ. 2556

Spec Canon EOS 600D


Canon EOS 600D



Ever since Canon introduced its original 'Digital Rebel' back in August 2003 - famously the first 'affordable' digital SLR - the company has continually developed and refined its entry-level line with ever-more-frequent releases, adding in more and more features in the process. So true to form, almost precisely a year to the day after the advent of the EOS Rebel T2i / 550D Canon launched its next model, predictably named the EOS Rebel T3i / 600D. As usual the 550D remains in Canon's range at a lower price point, with the EOS 1100D slotting in beneath it to round off the company's offerings to entry-level SLR users.


The new kid on the block can most succinctly be described as a 550D with an articulated screen, that also incorporates many of the beginner-friendly features we first saw on the more enthusiast-orientated EOS 60D. Perhaps most notable of these is 'Basic+', a simple, results-orientated approach to image adjustments in the scene-based exposure modes, that allows the user to change the look of their images and control background blur without needing to know anything technical about how this all works. The 600D also gains multi-aspect ratio shooting (in live view) plus the 60D's 'Creative Filters', a range of effects than can be applied to images after shooting, including toy camera, fisheye and fake-miniature looks. Additionally it can now wirelessly control off-camera flashes, including the Speedlite 320EX and 270EX II announced alongside it.


The fully-automatic 'green square' exposure mode has also been updated to 'Scene Intelligent Auto', with a new 'A+' icon on the mode dial to match. According to Canon, this mode (as its name might suggest) now analyses the scene in front of the camera and sets its exposure and image-processing parameters accordingly, and even tweaks the colour output to match. Continuing the 'beginner-friendly' theme, the camera now also incorporates a 'Feature Guide', that displays short explanations of what each function does on the screen to help beginners learn how things work.


There's an intriguing 'Video Snapshot' movie mode too, that's borrowed from Canon's camcorder range. This is based on the idea that movies are often more interesting when stitched together from a number of short 'takes', rather than one long continuous clip. It therefore limits movie recording to short snippets of 2, 4 or 8 seconds, then plays them back sequentially as a composite movie, with the option of adding a soundtrack to help tie them together. This, in effect, allows to you produce complex, multi-take movies without having to resort to computer editing.


What hasn't changed at all, though, is the camera's core specification, making the 600D the first camera in the line that hasn't gained a higher resolution sensor or new processor. So Canon's tried-and-trusted 18MP APS-C CMOS sensor is still in place, along with its sensitivity range of ISO 100-6400 (expandable to 12800) and 3.9fps continuous shooting. Likewise the 9-point autofocus and 63 zone metering systems are unchanged. This means that the 600D is unlikely to bring any surprises in terms of image quality.

On the movie front the camera retains its predecessor's approach too, offering full HD recording via a dedicated position on the camera's mode dial, with full manual control available for those who want it. There's a new digital zoom function, offering 3 - 10x magnification, and the 600D also has sound recording level control built-in, with a stereo sound meter to help judge the right setting.


Put this all together, and it's clear that the 600D is an extremely well-featured little camera that's well beyond the traditional stripped-down 'entry level' fare, and indeed gives little away in terms of features compared to the EOS 60D (the differences are mainly in terms of ergonomics and handling). It's also clearly aiming to make life as easy as possible for SLR newcomers to jump onboard and start experimenting with creative controls, while offering plenty of room to learn and develop their skills. But there's an awful lot of competition in this market space at the moment, and the 600D will have its work cut out to stand apart from the crowd and tempt potential buyers away from the small, sleek and lightweight mirrorless models that will sit alongside it on the dealers' shelves. Read on to find out how well it fares in this competitive market. Read full Review >

Spec Canon EOS 650D


Canon EOS 650D




The Canon EOD 650D / Rebel T4i is the company's latest addition to its novice-oriented 'Rebel' series. With more than two decades of continuous success in its film and digital incarnations, these little SLRs have been improved and refined to the point that Canon's biggest challenge is finding new ways to distinguish its updated models. Place the new EOS 650D / Rebel T4i alongside its predecessor, the EOS 600D / Rebel T3i, and the similarity in design and specifications may suggest nothing more than a nominal upgrade.

Indeed the headline specifications - 18MP CMOS sensor, 9-point AF sensor, 3:2 flip-out 1.04m dot screen are all familiar from the 600D. Look a bit closer, however, and each of these has been significantly improved, with an eye both to more seasoned users who demand SLR performance and compact camera upgraders who want a familiar feeling interface. The 650D also gains significance because it forms the basis of the Canon EOS M, the company's long-awaited entry into the mirrorless interchangeable lens market.


It is largely because of the rise of large sensor mirrorless models that in today's market an entry-level DSLR must offer more than just high image quality to entice compact camera upgraders. In the age of YouTube, quick and easy access to video recording capability is a must. And for users that are far more familiar with composing via an LCD screen than a viewfinder, live view performance is of no small concern. Of course the camera must still offer users a path to a more traditional DSLR-like experience, without which, they would be hard pressed to resist the temptation of a physically smaller 'mirrorless' camera.

The EOS 650D is Canon's attempt to meet these challenges head on, with new features aimed at improving its live view and video performance. It becomes Canon's first DSLR to offer continuous AF tracking while recording movies.

This is made possible by Canon's new 'Hybrid CMOS' sensor that now includes pixels dedicated to phase detection autofocus. The Hybrid AF system uses these to quickly set the lens to roughly the correct distance, then uses contrast detection AF to fine-tune focus. In theory, this should provide faster and more certain focusing for live view and video shooting compared to previous Canon models which rely on CDAF alone. You can read a more detailed explanation of this technology and see it in action on the AF performance page of this review.


The EOS 650D also becomes the first SLR from any manufacturer to feature a touchscreen. This is of the capacitive (contact sensitive) rather than resistive (pressure sensitive) type, behaving like that of a typical smartphone. In Live View and Movie modes the screen can be used to specify the point of focus and (optionally) release the shutter. It also supports iPhone-like multi-touch and gestures. The rear screen has been redesigned with no air gap between the display and cover glass in an attempt to reduce reflections and improve visibility in bright light. There's also an anti-smudge coating which aims to reduce the impact of its newfound touch-sensitivity.

Canon EOS 650D review

Canon EOS 650D / Rebel T4i key features

18MP APS-C 'Hybrid CMOS' sensor
Phase detection AF from imaging sensor for Live View and Video
Continuous autofocus in movie mode with subject tracking
14-bit DIGIC 5 processor
ISO 100-12800 standard, 25600 expanded
5 fps continuous shooting
9 point AF system, all sensors cross type, central sensor F2.8 (from 60D)
63 zone iFCL metering
1080p30 video recording with built-in stereo mics
1.04m dot 3:2 touch-sensitive vari-angle ClearView II LCD (capacitive type, multi-touch support)