The rings themselves are indeed made of plastic, the actual
Bayonet connectors but are made of solid metal. Overall, the act
Rings sturdy and well-made, so that they safely with
can use a heavier zoom lens.
The change of lens and rings goes without Hakeln or wobble,
everything is well fed and clean.
Since the intermediate rings the electrical contacts on the lens bayonet
passing function autofocus and Aperture settings. WHILE
Autofocus depending on the lens, lighting and motive sometimes
work very good, but often not at all, and therefore in
the Makrofotogrphie would dispensable is the aperture setting almost
indispensable. With cheap rings this important feature is missing in the
Rule. Even with the combination of all three rings does
Electronics reliable.
I myself use the intermediate rings especially with the Canon 50mm 1: 1.8
on an EOS 20D. These very good in comparison to macro lenses
favorable combination of rings with a sharp and high-intensity
Standard lens allows for use of all intermediate rings a
Abbildungsmasstab of more than 1: 1 (in my tests about 1:25: 1) and,
using a tripod and cable release, razor sharp.
Conclusion: I am thrilled and can these intermediate rings each of a
affordable entry into the macro photograph seeks highly
Recommendable.
