Canon’s New XC15 4K UHD Video Camcorder at DV Info Net (http://www.dvinfo.net/news/canons-new-xc15-4k-uhd-video-camcorder.html)

1" CMOS Sensor and DIGIC DV 5 Processor
UHD 4K at up to 29.97 fps
Integrated f/2.8-5.6/8.9-89mm Zoom Lens
XLR Audio Input & MA-400 Mic Adapter
24p Mode for 4K and 1080p Video
New Looks and Menu Options
Waveform Monitor Display
Three New Shutter Speeds
Highlight Priority HDR-Like Gamma
Rules Assignable to Files & Metadata

Ironically, the lack of XLR was not the reason I decided not to pull the trigger on the XC10 in the first place. It has some great specs, but it seriously needs to be built around EF-M. For a 1" sensor, this camera will struggle in certain situations in which you are stuck at f/5.6. On top of that, the detail is rather lacking in the image, even at 4K. I can live with everything else.

indeed, something is just not aligning with my needs either with the XC line. the biggest irk to me is the loupe'ed screen instead of a proper EVF. At this price point, there's really no excuse to make such a cut

the rx10 m3 has tempted me, but then again so has half a dozen other cameras i don't technically need

The reason the XC delivers less than you would expect from a one inch chip is that it is less than a one inch chip. I was told it is about half as wide, so about one quarter of the surface area.

The reason the XC delivers less than you would expect from a one inch chip is that it is less than a one inch chip.

Except it doesn't have the same detail as the Pocket Cinema Camera, a sensor size of 12.48mm x 7.02mm. The XC10/15 has a sensor size of 12.8mm x 9.6mm. The problem is more the low quality of the lens than the sensor. I am more than happy to work within the limitations of the sensor size when shooting 8-bit 4:2:2 internally to CFast cards I already own. However, I cannot overcome the fixed lens.

Well, EF-M requires an APS/Super 35 sensor.
Since I got a M3, I find intriguing that concept.

Would Canon put a 4k sensor of this size into the XC series without cannibalising other cameras?
I see various 4K camcorders appearing around.

N. F.

Well, EF-M requires an APS/Super 35 sensor.

You might as well say that EF requires a full frame sensor. Yes, the sensor won't be big enough to cover the entirety of the image that EF-M lenses can show, but so what? I understand that, it doesn't hurt anything, and it gives me a mount to use that isn't as deep as a full EF mount would be.

I tried XC10 for two weeks.

Pros:
very good ergonomy, smooth change of F-stop (also without sound noise), a very nice and new EOS cinematic color profile, nice picture at HD without aliasing (much better then GH4 at HD 50p), good picture at UHD with some minor post-sharpness

Cons:
colors need manual WB on white paper (or shift +400K), only CFast 2.0 for UHD intra (without cheap long-gop version with 100Mbps on SDXC), no setting for Noise Reduction, worse visibility of manual focus on LCD (than GH4).

Much better visibility of manual focus is a big advantage for GH4.
XLR at XC15 is nice option.

You might as well say that EF requires a full frame sensor. Yes, the sensor won't be big enough to cover the entirety of the image that EF-M lenses can show, but so what? I understand that, it doesn't hurt anything, and it gives me a mount to use that isn't as deep as a full EF mount would be.

Well, having a small sensor (smaller than APS-C or Super 35) in an EF-M mount means that you lose wide angle capability.

N. F.

Well, having a small sensor (smaller than APS-C or Super 35) in an EF-M mount means that you lose wide angle capability.

No you don't. The lens is 8.9mm at its widest. You can easily get 8mm lenses.

Well, the widest Canon lens in EF-M mount is an 11-22, according to EF-M Camera Lenses - Canon UK (http://www.canon.co.uk/for_home/product_finder/cameras/ef_lenses/ef-m/)

But I thought that the whole idea about EF-M was to use EF lenses in the XC15? Using a Rokinon 8mm fisheye sort of defeats the purpose, I think?

N.F.