Canon EOS Rebel T3i / 600D Digital SLR Camera Review

[Bryan Carnathan]

Discuss theCanon EOS Rebel T3i / 600D Digital SLR Camera Review - Tell us what you think of theCanon EOS Rebel T3i / 600D DSLR.

[DavidEccleston]

I think a sentence or two should be added to the cropped video recording section. Something indicating what sort of impact, if any, it has on the movie

[Bryan Carnathan]

David,


My understanding is that the T3i is not using binning at the normal angle of view, so the quality should be the same in cropped mode. I

[DavidEccleston]

It

[Bryan Carnathan]

David,


I had a few minutes to check out a noise comparison - and there indeed appears to be more noise in the cropped video. The video quality remains high, but the noise is somewhat more noticeable. I

[Jon Ruyle]

My understanding is that the T3i is not using binning at the normal angle of view, so the quality should be the same in cropped mode.

Wait- does this mean it just takes sample points when it makes video? Does that mean that it only uses a fraction of the sensor in video mode, or does it cycle to different pixels for different video frames?


Either way, it seems that this would lead to crazy artifacts. Does the 5DII do this too? If so, the video is not as awesome as I thought (I don't use video much, so I wouldn't know from practice if it is crappier than I thought [])



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I had a few minutes to check out a noise comparison - and there indeed appears to be more noise in the cropped video.

Do you (or anyone else) know if that means the T3i does *not* sample, or that it samples, then crops? Or....?


Again- I'm not hugely in to video, so it doesn't make that much difference to me in practice. But I'm curious.



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[Busted Knuckles]

From the Canon website

"Movie Digital Zoom crops the video image directly from the CMOS sensor at Full HD resolution to preserve video quality and still provide amazing additional telephoto power beyond just the lens."

I think this means it "zooms" down to just the exact pixel count needed for HD.

[Busted Knuckles]

If only I could do simply math. and thanks to all those who didn't correct me in public. the sensor size and pixel counts mean that the 3x (2.5 ish really) is the 100% pixel "pull" for HD video, moving beyond it has to be a resolution reduction - ooops my bad.

I understand the 550 and 60d have similar Sensor Crops.