Originally posted by lluis
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Relative Focal Length, Angle of View, and CCF Chart
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Originally posted by Barry_Green View PostThe AF100's sensor specification has been published in the user's manual as 17.8mm x 10mm.
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the final specs of the sensor an the rest of the camera have been posted.... http://www.dvxuser.com/V6/showthread...l-specs!/page5C100 / Aerial Shooter/Editor - NY/NJ
My work, My equipment, My other whatnots...
www.DarrenLevine.com
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Originally posted by lluis View PostWell, in this case the GH2 sensor, in 16/9 mode, is bigger than the AF100 one, according http://forums.dpreview.com/forums/re...ssage=36396593
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Originally posted by Barry_Green View PostB&H has a nice chart for stills cameras on their site to show the relative focal length needed on various stills cameras to achieve certain fields of view. But it's not very adaptable to the AF100 or cinema cameras.
Here I've put together a chart that shows the sensor sizes of common video and film formats, their Cinema Crop Factor as related to Academy Aperture 35mm Cinema Film frame size, and normalized for 16:9 image shape. It's not all that easy to put together a field of view chart when comparing different aspect ratios, so I normalized all the sensors for their widest 16:9-shaped field of view.
Without further adieu...
Are "Aperture change" figures for the same AOV (angle of view) or same focal length?
Is the projection screen size or magnification held constant for all the formats?
I would appreciate a look into the methodology (CoC explanations/advanced details ok)...
Thank you in advance.
PS. I am wondering if two different CoC (circle of confusion) standards for 35mm cinema were used.
In my AC manual it is 1/1000th of an inch regardless of the camera/projector aperture.Last edited by nugat; 01-17-2011, 12:52 AM.
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Originally posted by eheath View PostIm sure this has been posted, but i dont wanna search 52 pages. Is the af100 crop only 1.19 and not 2.0 like the gh1/gh2??? thats confusingC100 / Aerial Shooter/Editor - NY/NJ
My work, My equipment, My other whatnots...
www.DarrenLevine.com
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Originally posted by Barry_Green View PostIt's a 1.19 Cinema Crop Factor. Comparing the AF100 to its logical alternative, 35mm cinema film.
In reference to "2.0", that's comparing it against STILL film, not movie film. And in that comparison yes the AF100 would be a 2.0.
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Just to clarify, does this cinema crop mean that if I invest in a lens intended for a 35mm film camera (or digital 35mm), say a Red Pro Prime; that I will only inherit the crop factor of 1.19 rather than 2.0? The ambiguities are confusing me to no end, especially because the RPPs' FOV are considered with Super 35.Last edited by ryankroboth; 02-04-2011, 06:00 PM.
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correct, s35/super35/digital35/35mm motion film are all analogous with the same size and those lenses on the m43 will be about 1.19 cropC100 / Aerial Shooter/Editor - NY/NJ
My work, My equipment, My other whatnots...
www.DarrenLevine.com
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