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How to Read an MTF Chart
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Learn how to read an MTF chart.
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Reading the MTF Chart: RF 28-70mm F2 L USM
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Reading the MTF Chart: RF 35mm F1.8 Macro IS STM
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Reading the MTF Chart: RF 24-105mm F4 L IS USM
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Proof of Purchase Guidance
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You may Email a scanned copy of your proof of purchase to the following location: PURCHASE@cits.canon.com POP Email Address:
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EF : How to use stopped-down metering
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When you use Canon FL lenses or interpose bellows units, extension tubes etc. between the lens (either FL or FD lens) and the camera, it is necessary to take a stopped-down meter reading .
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EF 500mm f/4L IS USM : Here is a list of the parts and controls - Nomenclature.
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1. Gelatin Filter Holder Lock Button 2. Mount Position Point 3. Neckstrap Fixture 4. Lock Release Nut 5. Signal Selector 6. Manual Focusing Speed Selector 7. Tripod Mount 8. Focus Present Switch 9. Focus Mode Switch 10. Manual Focusing Ring 11. Reading Ring 12. Distance Scale Focus Range Selector
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EF 300mm f/2.8L IS USM : Here is a list of the parts and controls - Nomenclature.
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1. Gelatin Filter Holder Lock Button 2. Mount Position Point 3. Neckstrap Fixture 4. Lock Release Nut 5. Signal Selector 6. Manual Focusing Speed Selector 7. Tripod Mount 8. Focus Present Switch 9. Focus Mode Switch 10. Manual Focusing Ring 11. Reading Ring 12. Distance Scale Focus Range Selector
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POWER ZOOM ADAPTER PZ-E1
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The Canon POWER ZOOM ADAPTER PZ-E1 is an accessory that allows powered zooming when attached to a lens for EOS cameras*. Before use, please read this instruction manual as well as the instruction manual for your camera and lens. There may be warnings regarding shooting listed in them.
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CINEMA EOS LENSES
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I read on a recent cinematographer’s website a comment that the lens is the “brush” that paints an image on the “canvas” of the image sensor in the digital camera. This picturesque metaphor actually captures a reality not often understood. The cine lens is tasked with intercepting a significant amount of three-dimensional scene information in the form of optical wavefronts impinging on the lens faceplate and transforming these into a tiny two-dimensional optical representation that is then projected onto the camera image sensor.
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