Images fanatic and digicam tinkerer Nicholas Sherlock has created a brand new 3D-printed variable size extension tube for macro images utilizing huge and ultra-wide lenses.
The tube, which extends from 0 to 35mm, permits Sherlock to make use of his 14mm and 35mm wide-angle Canon EF/EF-S DSLR lenses on his Sony mirrorless digicam and focus these lenses from infinity all the best way to 1x magnification.
“Capturing huge is an effective way to incorporate extra of the topic’s pure atmosphere within the background,” Sherlock tells PetaPixel. “The one battle is that they find yourself simply millimeters away from the lens!”
The 3D-printed tube weighs in at simply 95 grams (~3.35oz), making it straightforward to make use of for lengthy stretches of time.
“I’ve centered on creating a light-weight rig so I don’t must be a strongman to shoot for longer than 5 minutes,” Sherlock says. “The printed tube is 95 grams, and my Sony a7R mirrorless digicam is far lighter than my earlier Canon 5D Mark III.”
The design takes benefit of the 26mm distinction between Canon DSLR deeper lenses and Sony’s mirrorless digicam mount.
“Which means so long as my tube collapses all the way down to 26mm or shorter, it has an efficient minimal extension of 0mm, so the lenses can nonetheless focus to infinity,” Sherlock writes. “At max extension, a 35mm lens will attain 1x magnification.”
The variable nature of the tube opens the door to a variety of attainable lenses.
“It additionally signifies that I can produce tiny extensions like 7mm that may in any other case be unattainable when utilizing Canon lenses on a Canon physique,” Sherlock continues. “These tiny extensions allow macro even on ultrawide lenses like my Samyang 14mm (though the lens finally ends up simply millimeters away from the topic!)”
Listed here are pattern macro images captured with the assistance of the extension tube:
If you happen to’re focused on printing out certainly one of these extension tubes of your personal to your EF lenses and Sony cameras, you possibly can obtain Sherlock’s design recordsdata over at Thingiverse (directions for constructing, mounting, and utilizing the tube could be discovered there as effectively). Further required components embrace screws, nuts, and grease. If you happen to’d prefer to go longer, Sherlock has additionally designed a 50-150mm tube that enables for magnifications of 1x to 3x when utilizing a 50mm lens.