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You really think a company would do that? Just go on the Internet and tell lies?

I would start to suspect my employers of bank robbery.

Organize, O toilers, come organize your might;
Then we’ll sing one song of the workers’ commonwealth
Full of beauty, full of love and health.

I’ve seen an elderly man working at the HEB I frequent. He looks frail. I wouldn’t want to be bagging groceries at his age.

Do you already have the 50mm f1.8? That’s a good portrait lens. Not as sharp or as bright as the much bigger, much more expensive “L” 50s, but still brighter than a f2.8 lens.

If you’ve got the 50mm, my advice is to take that to the party as your only lens. If you’re going to spend money on something, spend it on a flash.

With a flash, you should be able to stop down, even at night. Try f/4 or f/8. That will boost sharpness. If you’re concerned about weight, consider the Canon EL-100. It weighs 6.7oz without batteries. I’m guessing it takes either 2 or 4 AA batteries.

One thing to keep in mind is the R10 has a APS-C size sensor. That means that the effective focal length of those lenses will be higher than on a full frame camera. I believe Canon uses a 1.6 crop factor for their APS sensors. So, while a 24mm lens is very wide-angle on a full frame camera, it will be only moderately wide on your camera.

For portraits, a moderately long lens usually produces more pleasing results than wide angle. Wide angle lets you capture more of the scene around a person, but then it’s more of a landscape that includes people, not a portrait. A portrait should focus on just one (maybe two) subjects.

Of the lenses you mentioned, the 15-35 is probably your best bet. It’s a “L” lens, which is Canon’s top-of-the-line. It’s fairly bright.
You might also look for Canon’s 50mm f 1.2 or f 1.4 “L” lenses. With the crop factor, 50mm is comparable to 80mm on a full frame.
Your subjects will fill the field of view. You might have to take a step or two back, but they’ll look better than when shot with a wide angle lens close up.

What’s an example of a device with a 4/3 sensor that is not m43?

That is a fascinating image. It lets you see how color information is encoded in video. The vertical green bar is a glimpse of the luma (Y) channel. To the left is the chrominance blue (Cb) and to the right is the chrominance red (Cr). But the chroma channels are (obviously) supposed to be aligned with the luma, yielding full color video. Unfortunately, I can’t offer a suggestion why they aren’t aligned.

I believe the current offering takes the form factor of a 35mm cannister. It won’t physically fit in an APS camera.