Chromega D Lamphouse

The Chromega D was the lamphouse that launched the Chromega series of colourheads. By eliminating the troublesome task of changing packs of acetate filters in a filter drawer, the Chromega provided more accurate filtration and greatly increased productivity in the color photo lab. Additionally, the Chromega head was a diffusion light source, minimizing spots from dust and scratches. It utilized acetate filters in a "wheel" arrangement to provide stepless filtration. Since additional light output was required compared to condenser enlargers, the Chromega D used two 100w lamps and came with an external power supply/timer.

With the Chromega D head installed on a modified D3 chassis, the D4 was created, but it could also be fitted to the D-2 and D-3 chassis. Likewise, there was also a single lamp Chromega B version which was fitted to the B-series enlargers. Later an 8x10 version was created for the Omega F chassis, but the 5x7 E-series enlargers were limited to the 4x5 Chromega D.

However, the Chromega heads did not have interchangeable mixing "spheres" for smaller formats, and the illuminator for the filtration dials was an accessory. Even with two 100w lamps, exposure times were relatively lengthy and the lamps darkened with use, reducing light out put further. When the Chromega Halogen and Super Chromega lamphouses, which used brighter 150w tungsten-halogen lamps, were introduced, Omega provided kits to upgrade the incandescent D and F units to use the newer lamps.

Used Advice: The original Chromega heads should be considered as obsolete and we would not recommend their purchase. The filter assemblies have long been discontinued, and while it is possible to replace the individual filters, it is a laborious and expensive undertaking. Nor can the lamphouse be converted to use dichroic filters. At best it could serve as a diffusion light source for B&W printing.

**Major Components**
404-805	Chromega D Lamphouse for D4/E5/E6	D
404-809	Chromega D Lamphouse for D2/D3	D
404-858	Adapter to attach Chromega D lamphouse to E5/E6 chassis	D
1102	Chromega B Lamphouse and Timer for B-9/B-10	D
1103	Chromega B Lamphouse and Timer for B-5/B-6/B-7/B-8	D
406-802	Chromega F Lamphouse w/Power Supply	D
412-007	Exposure Timer & Power Supply for Chromega D lamphouse	D

**Accessories**
402-855	Filter Wheel Assembly (any color, state block color code) (Chromega D)	D
402-857	Single Filter Wheel Assembly (any color, state "R" or "L") (Chromega F)	D
406-830	Halogen Conversion System for Chromega F lamphouse	D
404-835	Halogen Conversion System for Chromega D lamphouse	D
404-846	Voltage Stabilizer H400 (for use with Halogen systems)	D
404-848	Voltage Stabilizer 250w/115v (for Chromega power supply w/o timer)	D
404-853	Yellow Filter Block (specify colour code of block) (for Chromega D)	D
404-853	Red Filter Block (specify colour code of block) (for Chromega D)	D
404-853	Black Filter Block (specify colour code of block) (for Chromega D)	D
404-853	White Filter Block (specify colour code of block) (for Chromega D)	D
404-854	Voltage Stabilizer 250w/115v (for Chromega P. S. with built-in timer)	D
402-856	Complete Filter Set (specify if "R" or "L" set) (Chromega F)	D
429-025	Infrared Interference Rejecting Filter #251	D
429-087	Filter Dial Illuminator (Chromega D only)	D
429-098	Filter Dial Illuminator (Chromega F only)	D
429-209	UV Filter D4	D
473-102	Tri-sected Heat Absorbing Glass 2-¹¹/32" for Chromega lamphouse	D
473-108	Tri-sected Heat Absorbing Glass 2-³/8" for D Halogen conversion	DL
473-109	Heat Absorbing Glass Assembly for F Halogen conversion	D

471-021	No. 100T8/1 SC 20v, 100w for Chromega B and D lamphouses	C
471-023	BFW 150w/20v lamp for Chromega F lamphouse	D
471-027	Tungsten Halogen 150w/24v for halogen conversion	C