If you're like me and enjoy the shallow depth of field and graceful lines of macro photography you have undoubtedly explored ways to extend your macro capabilities.  My quest to improve my macro work started out as a quest to gain Tilt and Shift capabilities on my Canon Digital SLR. While that goal has remain elusive, I have improved my macro capabilities in the process.   Enter the macro bellows.  Similar to a large format view camera, the bellows attachment give you the ability to increase the distance between the sensor/film plane and your choice of optics. None of the lenses that I had for my camera did a particularly great job with the macro, so adding extension tube, while an option, would not be a complete solution for my dilemma.  One of the primary purposes for the macro bellows was to duplicate slides.  A secondary attachment to hold a slide or film negative would be mounted in front of the lens and the bellows  would allow for the focusing on the image.  Snap a picture, and now you have a duplicate.  Keep in mind that these were popular in the days before drum scanners and other digital reproduction solutions.  But with the duplicator attachment removed, the bellows ...