Wednesday, August 8, 2012

Canon EF 17-40mm f/4L USM Lens


                            CANON EF 17-40mm F4L USM LENS
The Canon EF 17-40mm f/4L USM is an ultra wide-angle zoom lens that offers excellent image  quality and a constant maximum f4 aperture. Its compact, lightweight body makes it an
 ideal traveling companion

This Lens was mounted on a Canon 7D that was knocked off a 2ft high coffee table lens was damaged.


Canon Lens 17-40mm EF f4L USM
Canon EF 17-40mm f/4L USM lens
 
Canon Lens 17-40mm EF f4L USM with broken off piece of the sleeve barrel assembly
Broken off piece of the sleeve barrel assembly
                                      
Canon Lens 17-40mm EF f4L USM
Temporary fix with super glue before new part arrived

                           
Canon Lens 17-40mm EF f4L USM
Two screw removed that hold the circuit board

                                        
Canon Lens 17-40mm EF f4L USM Circuit board removed
Canon 17-40mm EF f4L USM with Circuit board removed
                                                          
Canon Lens 17-40mm EF f4L USM
Hidden screws under rubber zoom ring


                                                
Canon Lens 17-40mm EF f4L USM Casing removed
Casing removed

                                                 
Zoom ring needs to be removed from old casing by taping out the two plastic white tabs,And fitted to
the new casing on the right.

Canon 17-40mm EF f4L USM Weight
Weight of the Canon EF 17-40mm f4L with filter

                                         
 Canon EF 17-40mm f4 L USM Lens with an EW-83H Hood
Canon EF 17-40mm f4L USM Lens with an EW-83H Hood

                  

                               

Canon EF17-40mm F4L USM Instruction Manual

 
 Canon EOS-1D Mark IV
                                                   Google +
Photos By John Torcasio


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