Inside The Guts Of An Olympus Lens

Pancake Lenses got their name for a reason: They’re super-flat.
Skinny means light, too. The Zuiko 25mm f/2.8 weighs only 3.35
ounces. Why? Thank its dual-sided aspherical glass element. The
Olympus Four Thirds sensor format makes this the equivalent of
50mm on a DSLR, Four Thirds, or Micro Four Thirds body. And its
images are far from flat.

This $225
(street)
Olympus
Zuiko 25mm
f/2.8 ED
pancake
lens: light,
flat, and
impeccably
sharp,
according to
our tests.

1. Front Lens Elements

These two elements have high-quality
optical multi-coating for accurate
color reproduction as the light enters
the lens. Among other things, multicoating
helps filter out ultraviolet
rays that might otherwise add too
much blue tone to your image.