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CMS-XML Setting the exposure on the MP-E 65mm f/2.8 1-5x Macro Photo lens
Effective f-number for the Magnification and Camera's f/No. With the EOS-1 and EOS-1N/DP/HS, fine spot metering cannot be used because an exposure error will result. ... During remote control shooting, etc., when you take your eye off the eyepiece, cover the eyepiece with the eyepiece shutter or cover .
CMS-XML Using the internal extender on the EF 200-400mm f/4L IS USM Extender 1.4x
Internal Extender Switch * There are times when an error message will be displayed and shooting operation is prevented. If this occurs, please turn the camera OFF and then ON.
CMS-XML Introducing the Canon RF 24-70mm F2.8 L IS USM
Experience the possibilities with the new RF 24-70mm F2.8 L IS USM lens. Engineered with Nano USM technology for accurate and silent AF operation — combined with reduced focus breathing for more seamless focus transitions — this dynamic L-series lens helps you cover it all.
CMS-XML Using Extenders - EF300mm f/2.8L IS II USM
Attach the extender to the lens, and then attach the OO lens to the camera. To remove it, reverse the order. Errors may occur if you attach the extender to the camera first.
CMS-XML Using the Security Slot on the EF 600mm f/4L IS III USM lens
Security Slot The security slot is located under the cover for the orientation locking knob. Attach a commercially-available wire-type security lock here.
CMS-XML Using the Security Slot on the EF 400mm f/4 DO IS II USM lens
Security Slot An attachment slot is provided for a wire-type security lock. The slot is located under the cover for the orientation locking knob.
CMS-XML Using the Security Slot on the EF 500mm f/4L IS II USM lens
Security Slot An attachment slot is provided for a wire-type security lock. The slot is located under the cover for the orientation locking knob.
CMS-XML TS-E90mm f/2.8 : How to set Exposure Compensation
When using a TS-E lens without tilting or shifting, all AR modes can be used as with normal lenses. Tilting or shifting, however, causes a metering error of up to one stop. since the slight exposure variation caused by this error depends on the tilt and/or shift amount, compensate the exposure as necessary.
CMS-XML How to set Exposure Compensation when using the TS-E17mm f/4L
The use of AE is not recommended when the lens is tilted or shifted as exposure errors may result. It is recommended that you use the exposure values when the tilt shift scale are set to the "0" position as a guide and then take the shot with as many exposure settings as possible
CMS-XML Using the Image Stabilizer Modes - EF-S17-85mm f/4.5-5.6 IS USM
Using the Image Stabilizer Mode Set the STABILIZER switch to OFF when you are taking pictures using the BULB setting (long exposures). If the STABILIZER switch is set to ON, the image stabilizer function may introduce errors . The Image Stabilizer might not be fully effective in the following cases: