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Related Manuals for Canon RF-S3.9 mm F3.5 STM DUAL FISHEYE
Summary of Contents for Canon RF-S3.9 mm F3.5 STM DUAL FISHEYE
- Page 1 Instructions...
- Page 2 “STM” stands for Stepping Motor. * For supported cameras, please check the Canon website. Conventions used in these instructions Warning to prevent lens or camera malfunction or damage.
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Page 3: Safety Precautions
Safety Precautions Precautions to ensure that the camera is used Details pertaining to risks that may Caution safely. Read these precautions thoroughly. Make result in injury or damage to other sure all details are observed in order to prevent objects. risks and injury to the user and other people. - Page 4 Safety Precautions Be sure to follow the instructions carefully Details pertaining to risks that may Caution when viewing VR images. result in injury or damage to other objects. Details pertaining to risks that may Warning Those who cannot see the images clearly result in death or serious injury.
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Page 5: General Precautions
General Precautions Handling Precautions Shooting Precautions Do not leave the product in excessive heat such as Focus again after recovering from the auto power in a car in direct sunlight. High temperatures can off status. cause the product to malfunction. To maintain the focus position in the shooting-ready If the lens is taken from a cold environment into a status, set [Auto power off] to [Disable] on the... - Page 6 This device complies with Part 15 of the FCC Rules. CAN ICES-3 (B) / NMB-3 (B) Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
- Page 7 Nomenclature Left lens (→ 11) Right lens (→ 11) Focusing/Control ring (→ 9) Lens cap mount (→ 8) Lens mount (→ 7) Left-right focus difference adjustment mode switch (→ 12) Rear filter holder (→ 14) Lens mount index (→ 7) Contacts (→...
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Page 8: Attaching And Detaching The Lens
1. Attaching and Detaching the Lens Lens mount index Set the camera’s power switch to OFF when attaching or detaching the lens. Attach the lens cap before detaching the lens from the camera. After detaching the lens, place the lens with the rear end up and attach the dust cap to prevent the lens surface and contacts from getting scratched. - Page 9 2. Attaching and Detaching the Lens Cap This lens projects out past the front frame. To protect the lens, use the special lens cap when not taking photos. Attaching the Lens Cap Detaching the Lens Cap Attach (2) while squeezing the levers (1) on the Detach (2) while squeezing the levers (1) on the inner sides of the cap.
- Page 10 3. Focusing/Control ring Use as a Focusing Ring The focusing/control ring can be used as either a focusing ring or a control ring. Set the focus mode (AF/MF) on the camera. To shoot in autofocus (AF) mode, set the Focusing/Control ring camera’s focus mode to [AF].
- Page 11 Focusing/Control ring The lens does not have a focus mode switch or This lens’ focusing/control ring is electronic. a focusing/control selector switch. It is possible to set cameras that support Delayed focus may occur if the focusing ring electronic fulltime manual focusing to manual (focusing/control ring) is quickly turned.
- Page 12 4. Checking/adjusting left and right focus Checking Left and Right Focus When first mounting this lens on the camera, or when using it after being transported for an extended period, use the following steps to check the difference between left and right focus. Display an enlarged image from the Switch to an enlarged image from the left lens, then either use the camera’s...
- Page 13 Checking/adjusting left and right focus Adjusting left and right focus Leaving the enlarged image from the right lens showing, adjust using the following steps. Left-right focus difference adjustment mode switch Focusing/Control ring Turn the focusing/control ring to adjust. Slide the left-right focus difference adjustment mode switch to the ADJUST side.
- Page 14 Checking/adjusting left and right focus If the right lens focus goes notably out of range while correcting for focus differences in the left and right lenses, slide the left-right focus difference adjustment mode switch back and forth three times within 6 seconds, starting from the ADJUST side.
- Page 15 5. Filters (Sold separately) This lens has a rear filter holder at the rear. It can take screw-in filters (φ30.5mm) or sheet filters (gelatin filters). When using screw-in filters: Attachment position mark Stop position mark Filter Rear filter holder Rear filter holder index Rear filter holder index Attach the filter (φ30.5mm) to Match up the rear filter holder index and the...
- Page 16 Filters (Sold separately) When using sheet filters (gelatin filters): Download the filter template files, print them out, then lay the filter over the template and cut to match. Then insert the filter in the rear filter holder. Cut the filter to match the filter template outline. Download the filter template file (PDF).
- Page 17 Filters (Sold separately) Only one filter with a thickness of 0.2 mm/0.008 in. or less may be used. When printing the template, make sure that the illustration size remains the same. Check that the printed-out size is the same as the measurements shown in the illustration. Cut along the middle of the lines printed on the filter template.
- Page 18 Filters (Sold separately) Stop position mark Attachment position mark Filter Filter cover Rear filter holder index Rear filter holder index Rear filter holder After attaching the filter to the Match up the rear filter holder index and the rear filter holder, attach the filter attachment position mark on the lens, and turn cover to the rear filter holder the rear filter holder clockwise until it reaches...
- Page 19 6. Exposure Photographing with AE (auto exposure) is possible at all focusing distances even with this lens attached. AE metering range is restricted to within the image circle in the left lens. As this lens is wide-angle, using flash photography on close-up subjects can cause very inaccurate AE exposure measurements.
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Page 20: Specifications
Specifications Focal Length/Aperture 3.9mm f/3.5 Lens Construction 8 groups, 11 elements (2 prisms) (per optical system) Maximum Aperture f/3.5 Minimum Aperture f/16 Angle of View Horizontal: 144°, Vertical: 144°, Diagonal: 144° Min. Focusing Distance 0.2 m/0.66 ft. Max. Magnification 0.03x Baseline Length (Central point between left and Approx. - Page 21 The width, height, length and weight are for the lens itself only. Close-up Lens 250D/500D cannot be attached because there is no size that fits the lens. You cannot use extenders. All data listed is measured according to Canon standards. Product specifications and appearance are subject to change without notice. ENG-20...
- Page 22 CT1-D353-B 0524Ni © CANON INC. 2024...
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