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The C760 is the most modern of the Omega
medium format enlargers. Introduced towards the end of the enlarger
boom that began in the 1970's, it effectively replaced both the B66
and C67 enlargers. Incorporating many design changes, it was
strikingly different from the models it replaced.
Instead of
a baseplate, four studs, extending from the corners of the girder,
were bolted directly to the baseboard, providing a very rigid
column. Quick elevation changes could be made via a spring-loaded,
self-locking knob on the carriage, with fine adjustments
accomplished using an outer knob on the same control. Dual left and
right-hand focus controls were provided. The heads did not lift but
were now fixed in position, minimizing alignment problems. However,
the head could be rotated, and the lens stage could be tilted as
well, providing distortion control. Negative carriers were inserted
against a spring loaded platform on the carriage. Because enlarging
lenses had pretty well standardized on 39mm mounting thread, it was
possible to simplify the lens mount system to just two threaded
discs. Initially the C760 was offered in both standard and XL
length columns, but the shorter column was discontinued by 1983.
While the
C760 chassis has been out of production since 1999, the dichroic lamphouse and many accessories
remained in production until recently.
Used Advice: There are three
potential problem areas which should be closely examined on used
C760 enlargers - the focus system, elevation mechanism, and
condenser lenses. Please refer to our C760
Service Advisory for complete details. Also note our
Technical Memo regarding the C760 light seal. |
