Product Description
KENKO Teleplus Pro 300 DG converters are made with high quality multicoated
optical glass supplied by Hoya corporation, the worlds largest manufacturer of
optical glass. This glass will match the optical quality of the prime lens even
at the edges. The optical design of the elements and light path is wide enough
not to cause any vignetting.
They are designed specifically to be use with telephoto lenses of 100mm or
above, and work best with telephoto lenses of 200mm to 500mm. The PRO 300's can
be used with telephoto zoom lenses as well as prime lenses, but, due to their
design, Kenko does not recommend them for lenses that have a zoom range that
starts under 50 mm.
Full AF operation with PRO 300 DG 2.0x is possible when using lenses with
maximum aperture of f/2.8 or brighter.
The Kenko PRO 300 converters are intended to be used with expensive telephoto
lenses and larger camera bodies. They have all metal lens mounts in both front
and rear, as well as a metal core, to support today's heavy professional camera
bodies.
New DG Series have upgraded "Gated-Array" circuitry to work better
with the digital SLR's and some of the the new digital only lenses. They still
work the same with film SLR Cameras and lenses as well. |
