A whole photographic world lays hidden from sight! Broaden your photographic horizons with Phottix Macro AF Extension Tubes for Nikon and Canon Digital SLR cameras. Shoot macro images without macro lenses.
Phottix AF tubes feature electronic connections for lens autofocus and aperture functions.
Macro extension tubes are an inexpensive way to experiment with macro photography. Flowers, insects – anything you can think of – can be photographed in minute detail. There’s no need to spend several hundred dollars to photograph the hidden world.
Telephoto lens shooter use extension tubes when their subject is within minimum focusing distance.
The Phottix 3-Ring set come complete with 13 mm, 21mm, and 31 mm tubes.
These can be combined to get super-close to your subjects.
Use the following formula to calculate the magnification from specific extension tube sizes:
Magnification = Extension Tube Length / Lens Focal Length
Example: using a 31mm extension tube between a 50mm lens and a camera body would result in magnification of 0.62x (31 mm / 50 mm).
Using all three with a 50 mm lens would give you a magnification factor of 1.28x.
Available for Canon and for Nikon.