Got answer from Omaga. Just FYI:


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1) No this is not normal. It may be a relay on the circuit board in the
Chromegatrol. If the cover of the Chromegatrol is removed, between the
two timer knobs on the board, there is a 1 inch square box connected to
the board. This relay is mechanical and the contacts get stuck and
cause
the lamp not to turn off. This is connected to the board via 7 solder
contacts. The replacement relay is $25.00 plus $10.00 for freight (our
minimum charge).
2) To mount a Rodagon lens a 421056 lens disc is needed. This is a flat
threaded mount that is used on the slide in mount or the three lens
turret.
When used on a turret, a lock ring may be needed between the lens and
the disc (as a spacer) to give enough clearance for the lens to turn.
This only applies if the rear element of the lens protrudes beyond the
rear thread.

-----Original Message-----
From: Steven Woody ]
Sent: Monday, April 18, 2005 11:09 PM
To: Bob Smrcina
Subject: Question about D5

Thanks for your reply.

Q1:
A used D5-XL Super Chromega Dichroic Enlarger which
has a up/down glow phenomenon, that is the lamp will
not cut off as soon as the power supply was cut off by
the Chromegatrol, it will quench in a duration of
about 1 to 2 seconds. Is it normal?

Q2:
Can the D5-XL Super Chromega Dichroic use Rodenstock
Rodagon 50mm enlarger lens (with or without the lens
turret)? I heard there are some problems with the lens
respect to some models of D5 serials.
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