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Canon
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Canon Broadcast Service & Support 123 Paularino Avenue CostaMesa,CA92626 1-800-423-LENS (5367) cabctvservice@cusa.canon.com 1. Secure the equipment carefully in a hard shipping case or a box with suitable packing materials to ensure proper protection during shipping. 2. Select a carrier that provides tracking information for the package.
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Canon Sumire Prime cinema lens specifications
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114mm Filter Diameter N/A
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CINEMA EOS LENSES
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The shape of the lens spectral curve (especially at the blue and red end of the visual spectrum) works in concert with the spectral characteristic of the image sensor, the RGB spectral separation of the color filter array (CFA), the spectral shape of IR optical filter , and finally, the linear matricing strategy employed by the camera manufacturer to implement the final digital camera system colorimetry – as outlined in Figure 3. 2 Figure 3 Showing the separate determinants of the color reproduction characteristic of a Cine Lens-Camera system
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CINEMA EOS LENSES
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It was Canon’s goal to develop a lens that would ensure constant subjective sharpness within that Middle Zone to the degree possible and to further protect that sharpness over the entire focal range of the lens. This was deemed important to achieve the performance expected of a variable prime lens.
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CINEMA EOS LENSES
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In one sense, this might seem contradictory. DP’s and cinematographers regularly employ diffusion filters when certain scenes require a requisite degree of softening. But, there are times when the desired balance between sharpness in a region of the scene and a sought-for softness in a face within that scene cannot be struck.
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4k LENS
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The lens optical MTF is multiplied by the camera electronic MTF (largely determined by the sampling mechanism of the image sensor and its associated optical low pass filter ) to produce the effective MTF of the lens-cameraimagingsystem. The imperatives of achieving as high an MTF as possible in the digital 4K camera must be balanced by the necessity of shaping the roll-off of the camera MTF characteristic to avoid an undue level of aliasing (a consequence of the horizontal and vertical sampling mechanism of the image sensor).
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