Looking for a camera that's 1080P and good for bright indoor (no water wash out on skin) for detail gym recording - Page 2 - AVS Forum | Home Theater Discussions And Reviews
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post #31 of 31 Old 05-02-2013, 01:37 PM
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Originally Posted by gigatron View Post

That's the current 2K cinema camera right?
The chart example of the full frame vs the BlackMagic is the original 2.5k resolution $2,999 model, not the $995 pocket cinema. The original 2.5k BlackMagic Cinema Camera has a 2.3x crop ratio vs a 3x crop ratio for the Pocket Cinema Camera.
Hmm, so, it's cropping the picture and not showing everything. It's true it shows a weird view there. I am totally unfamiliar with how all this works. So basically it doesn't capture the whole? So you have to use certain lenses that can capture the whole? Sorry for sounding retarded... I am learning biggrin.gif

It's not a weird view. It's a different angle of view....like using a different lens. Comparing apples and oranges. You wouldn't compare two different focal lengths on the same camera that have two entirely different angles of view. So, for two cameras with different crop factors you wouldn't compare using the same focal length lens, because you'd end up with two entirely different angles of view. You'd instead compare them with different focal lengths to match the angle of view. The chart is to simply shot the crop factor vs full frame and what lens focal length (with the multiplier method) you'd need to create an equivalent angle of view with the crop sensor.

Any camera or camcorder that is not full frame DSLR is cropped from what the lens truly is. Camcorders, for instance, usually use much smaller sensors than even the pocket cinema....such as 1/3" or 1/4, which is way more crop factor at around 7.21 and higher. They use much wider lenses than normal to compensate. Ones that wouldn't even cover a full frame sensor.

Here is a sensor size chart with the crop factor listed. Super 16mm sits somewhere in between 2/3" and micro 4/3" and I believe is about 1". May have to click to enlarge it so it is more readable...depending on your monitor.
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