u are talking about focus module or sensor ....yup focus module is different...but picture quality will be same as sensor was same
Canon 700D vs Canon 600D « NEW CAMERA
nikon D5200 have awesome sensor...and very good performance...rather then 700D you can get D5200
Im talking about the sensor.
This is made possible by Canon's 'Hybrid CMOS' sensor that 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 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.
Link Canon EOS 700D/Rebel T5i In-Depth Review: Digital Photography Review
Moreover for D5200 video Dp reviews wrote.....
While the camera's video specs are impressive, there are a couple of disappointments. If you want to record at 1080 50i or 60i, you should know that this involves a crop of the sensor area which is then upsampled to 1920 x 1080, resulting in noticeably soft results with tell-tale upsampling artifacts. On a pixel level we found the default out-of-camera video files to be a bit soft but, to be fair, the D5200 delivers files that can withstand relatively aggressive sharpening in post-production, resulting in crisp-looking video.lay
But for image Quality D5200 is great no doubt desite the same Sony 24.2 sensor from D3200. @ Sujoy considering that fact aint it better to buy the D3200 over the D5200 as image quality should be same?
If I do manual focus in videos with STM on 600D. Shall I get same video quality as in 700D manual focus mode?
Guys don't forget price difference between 700D and 600D with 18-55 kit is of
24k!!
If I use STM lens on 600D what actually benifit I will get in
video making as you said picture quality would remain same?
picture quality will improve marginally as the optics are slightly better in the STM lens,but AF focus speed will remain the same for that you need the hybrid CMOS of the 650/700 with the STM to work or compliment each other.