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Photos and specs  Canon  EF 14mm f/2.8L USM

Then take out the lens after it has warmed gradually. Do the same when taking the lens from a warm environment into a cold one. 1. Mounting and Detaching the Lens See your camera’s instructions for details on mounting and detaching the lens. • After detaching the lens, place the lens with the rear end up to prevent the lens surface and contacts from getting scratched. • If the contacts get soiled, scratched, or have fingerprints on them, corrosion or faulty connections can result. The camera and lens may not operate properly. • If the contacts get soiled or have fingerprints on them, clean them with a soft cloth. • If you remove the lens, cover it with the dust cap. To attach it properly, align the lens mount index and the index of the dust cap, and turn clockwise. To remove it, reverse the order. 2. Setting the Focus Mode To shoot in autofocus mode, set the focus mode switch to AF ... To use only manual focusing, set the focus mode switch to MF, and focus by turning the focusing ring. • Do not touch the focusing ring on the lens during autofocusing. 3. Full-time Manual Focusing Full-time manual focusing allows you to focus manually even when autofocus mode is selected. 1) Set the camera to ONE SHOT AF mode and press the shutter button halfway. 2) Keep the shutter button pressed halfway and turn the focusing ring to focus manually .. . 4. Aperture Setting Aperture settings are specified on the camera. 5. Infinity Distance Mark To compensate for shifting of the infinity focus point that results from changes in temperature. The infinity position at normal temperature is the point at which the vertical line of the L mark is aligned with the distance indicator on the distance scale .. . To make sure focus is precise, it is recommended that you check the focus in the viewfinder before shooting. 6. Infrared Index The infrared index corrects the focus setting when using monochrome infrared film. Focus on the subject manually, then adjust the distance setting by moving the focusing ring to the corresponding infrared index mark .. . Use a red filter also when you take the picture. • Switch the focus mode to MF to turn the focusing ring for adjustment. • The position of the infrared indices is based on film usage with a peak sensitivity of 800 nm and a red filter (such as Wratten 87). Using black and white infrared film with a different sensitivity may require a slightly different setting. Thus, it is recommended to take trial shots with the focusing ring set slightly to the left and then right of the appropriate index to find the best position. • Be sure to observe the manufacturer’s instructions when using infrared film. 7. Filter (sold separately) The filter screws onto the front of the lens. • If you need a polarizing filter, use Canon’s PL-C polarizing filter. Filter holder for the EF14mm f/2.8L USM This lens is constructed with a built-in, gelatin filter holder in the rear .. . To insert, simply cut the filter to the same dimensions (31 mm/1-1/4” . ...

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