Frog at 4 inches
Here's a frog taken with the front lens group (objective) from an Olympus 35-180mm lens removed from an Olympus IS-3 DLX film camera, reverse mounted onto the front of a Nikon 105mm f/2.5 AI-S lens. A bit distracting are the reflections of the foil covered reflector cards on my home-made pop-up flash macro bracket. After one pop of the flash the frog was gone. Focusing when using these close-up add-ons is done manually by moving the camera forward and backward until the image is sharpest. The primary lens is almost always set at infinity. Not all "kludged" add-on lenses are perfect for use on every lens. Some just aren't good optical "matches". Often there's a bit of testing involved in getting a lens plus add-on combination that's worth using. Despite using an aperture of f:22, depth of field is very thin.
20110814-MA-058
Frog at 4 inches
Here's a frog taken with the front lens group (objective) from an Olympus 35-180mm lens removed from an Olympus IS-3 DLX film camera, reverse mounted onto the front of a Nikon 105mm f/2.5 AI-S lens. A bit distracting are the reflections of the foil covered reflector cards on my home-made pop-up flash macro bracket. After one pop of the flash the frog was gone. Focusing when using these close-up add-ons is done manually by moving the camera forward and backward until the image is sharpest. The primary lens is almost always set at infinity. Not all "kludged" add-on lenses are perfect for use on every lens. Some just aren't good optical "matches". Often there's a bit of testing involved in getting a lens plus add-on combination that's worth using. Despite using an aperture of f:22, depth of field is very thin.
20110814-MA-058