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Canon develops 35 mm full-frame CMOS sensor for video capture

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Re: Canon develops 35 mm full-frame CMOS sensor for video capture

#2
I love the performance of these larger sensors, and these demos blow everything I've seen out of the water, but I'd never carry that kind of gear around for any of my purposes (the size and weight more than the price, though that's definitely a large factor).

Re: Canon develops 35 mm full-frame CMOS sensor for video capture

#4
In a way it's kind of simple, isn't it? Having "only" Full HD on a 35 mm sensor simply means you have much larger individual potential wells, capturing more photons per pixel.

What I'm really wondering about is the dynamic range - wouldn't that also drastically increase?

Re: Canon develops 35 mm full-frame CMOS sensor for video capture

#5
post #2

I love the performance of these larger sensors, and these demos blow everything I've seen out of the water, but I'd never carry that kind of gear around for any of my purposes (the size and weight more than the price, though that's definitely a large factor).

It's still a prototype, that's why it's bulky

I suppose the actual consumer products will be lighter.

Re: Canon develops 35 mm full-frame CMOS sensor for video capture

#7
I wouldn't mind a better bit of info about the sensor! For instance I'm guessing its a bayer filtered job, to keep the sensativity (at the expense of sharpness of say Sigma Foveon).

But I can't believe they have just had such an improvement by switching to larger wells and more sensativity, do they have some cunning time domain based filtering too. One advantage digital sensors have is that they can exclude certain bits of noise by merging the image results over time, obviously this comes at the expense of sharpness.

Re: Canon develops 35 mm full-frame CMOS sensor for video capture

#8

In a way it's kind of simple, isn't it? Having "only" Full HD on a 35 mm sensor simply means you have much larger individual potential wells, capturing more photons per pixel. What I'm really wondering about is the dynamic range - wouldn't that also drastically increase?

Depending on how they handle the noise reduction, yes.

Re: Canon develops 35 mm full-frame CMOS sensor for video capture

#9
For comparison, the Nikon D4 (a digital SLR) can shoot video at ISO 204,800, and it can resolve details in the dark beyond the ability of the eye, and I suspect this new sensor is more sensitive — or, at least, far more noise free — than that.

EDIT: Judging by some photos I've taken of the night sky, with an f/2.8 lens and with a shutter speed of 1/50s, you need an ISO of around 300,000 to get enough brightness.

If only Stanley Kubrick had this to play with. Instead, he used a f/0.7 lens to shoot some scenes in Barry Lyndon by candlelight, way back in 1975.

Re: Canon develops 35 mm full-frame CMOS sensor for video capture

#10
post #3

[deleted]

Moonlight is for the most part just reflected sunlight, so it's not surprising that the colors are very similar. Obviously it's much less bright, by a factor of 500k according to Wikipedia, but that's what this sensor is about.

You can get similarly startling images from a plain point and shoot camera by installing it on a tripod and taking long exposure shots of things. You need 30 to 60 seconds exposure, sometimes available as a "starry sky" scene mode. Architecture is particularly suited as it tends not to move around. :) Even a cheap, small, P&S sensor is much more sensitive to light when you expose for 60 seconds, all while being completely noise-free.

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