AF in Live view in EOS 700D (REBEL T51) and EOS 100D ( Rebel SL1) are the same ?

By pure chance I came across a very informative review of the Canon SL1 , in Amazon.com comments.

Quote :

"In the T3i and prior, Live View focusing from the rear LCD was achieved by contrast-detect. This method is vastly slower than phase-detect and, in Canon's DSLR implementation, isn't capable of tracking motion in movies. It's reasonably quick and quite accurate with stills. It isn't possible to use the main phase-detect array without interrupting Live View because a mirror gets in the way.

The T4i/T5i added a second phase-detect system integrated into the imaging sensor itself that boosted acquisition speed and improved motion tracking to mediocre/adequate levels, but only for the center 9% of the frame. The SL1 expands this system to 64% frame coverage. The result is significantly more confidence with continuous autofocus in movies. With off-center subjects, it hunts (bringing the scene in and out of focus) much less than the T4i/T5i.

Here's the contrast-detect breakdown:

LV, stills, static: reasonably fast and accurate over the whole frame
LV, stills, movement: slow, accurate when it can keep up
LV, movies, static: reasonably fast, occasional hunting
LV, movies, movement: slow, accurate when it can keep up

Motion tracking is still short of exceptional. STM lenses (which use a stepper motor instead of standard USM or a noisy micro-motor) work more quickly and precisely than non-STM lenses. They'll track slow, undemanding subjects and faces. For more challenging movement, either prefocus, manually focus, or jump to the next performance tier comprised of Sony's 'translucent mirror' DSLRs, many mirrorless bodies (e.g., Panasonic G/GH), and Canon's own 70D. The SL1 has no focusing aids (e.g., focus peaking) for Live View except full-screen zoom. Focusing accurately by hand on a moving target is very challenging.".

...........

LENSES:

The 18-55/3.5-5.6 STM is a stellar optic. Focus is as fast as the camera allows, near-silent, and inaudible in movies, as is the IS system. If you upgrade, it'll be for speed, a different range, or perhaps more contrast, not because it isn't sharp enough. The 18-135/3.5-5.6 STM is equally impressive, though about an inch longer and twice the weight.

Light and small primes are well-suited to this body. The 40/2.8 STM, 50/1.8, 28/1.8, and 28/2.8 are all more compact than the kit lens. Larger lenses work as with any other EOS body, though some will be slightly more awkward when you're trying to adjust the zoom ring and support the rig from under the lens at the same time.

D. Alexander.".

Read the full review of the SL1 by D. Alexander here.

A great read, not boring.

http://www.amazon.com/review/R220987TBNN8XP/ref=cm_cr_pr_viewpnt#R220987TBNN8XP