Omega · Medium format · 1976–1979

Omega B600

Name: Omega B600
Brand: Omega
Availability: InStock

Omega brought out the B600 in 1976 as a low-priced home enlarger, built to take on the small domestic and imported entry-level enlargers of the day, as KHB Photografix tells it. It prints 35mm up to 6x6 cm with a double condenser head and a 75 W PH140 opal lamp, and it does without a lensboard altogether, since the lens stage itself is threaded for 39mm Leica-mount lenses. A Chromega B600 version came with the Chromega B dichroic head, and adapter kits later let owners fit the C700 or C760 dichroic heads. It only lasted until 1979. The C700 that followed reused many of its parts, carriers and accessories, and that overlap is why a B600 is still easy to keep running. KHB pitches it as a good first enlarger for a small or temporary darkroom, and its 14x19 in baseboard still handles 11x14 prints.

B600 condenserChromega B600 dichroic, with standard or stabilized power supplyB600 retrofitted with a C700 or C760 dichroic headB635, the 35mm sibling on the same chassis

Spec at a glance

Maker: Omega
Format: Medium format, up to 6x6 cm
Stock head: Condenser
Launched: 1976
Made: 1976–1979
Takes: Minox and 110 up to 6x6 cm
Light source: Double condenser, 75 W PH140 opal lamp
Lens mount: Lens stage threaded for 39mm lenses
Column: Steel girder with scale, 39 in maximum height
Biggest print on the baseboard: 11x14 in, on a 14x19 in baseboard
Weight: About 10.5 kg (23 lb)
Also listed as: B-600, Omega B-600, Chromega B600
Typical eBay ask (Oct 15, 2026): $210–$410

Darkroom check

Light, carriers, bellows and lens

Light source and lamp: The stock head is a double condenser lamphouse with a 75 W PH140 teardrop opal lamp, which KHB Photografix still sells new. For 110, 126 and other tiny negatives with lenses shorter than 50mm, a supplementary condenser goes over the main pair. The Chromega B600 has a Chromega B dichroic head instead, with a 75 W 27 V halogen lamp and an external power supply. Ask which head it has and for a photo with the lamp lit.
Carriers and condensers: The B600 takes the spring-loaded rapid shift glassless carriers shared with the B66, B635 and C700, from Minox up to 6x6 cm, plus a 6x4.5 carrier and a 6x6 glass carrier. Since the C700 used the same carriers, spares are easy to match. Look in the photos for the carriers you'll print with.
Column and bellows: The column is a rigid steel girder with a reference scale, a constant-force counterbalance spring and a lift-and-lock carriage with an oversized lock knob. Two focus rods carry the bellows. Ask whether the carriage holds where it's locked, and ask for a photo of the bellows with a light inside.
Alignment: KHB credits the twin focus rods with keeping focus and alignment precise. On arrival, check the baseboard, negative stage and lens stage with a spirit level in both directions, and recheck after fitting any dichroic head adapter.
Lens: There's no lensboard to lose, because the lens stage itself is threaded for 39mm Leica-mount lenses. Some B600s were sold as packages with a 50mm lens and a 35mm carrier. Check the photos for a lens screwed into the stage if one is listed.
Timer and power: The condenser head plugs straight into an enlarging timer. The Chromega B head needs its own power supply, standard or stabilized, and KHB warns that a non-standard lamp can damage it. If a dichroic head is in the listing, look for the power supply in the photos.
Shipping and pickup: KHB lists its refurbished B600 at about 10.5 kg (23 lb), on a 14x19 in baseboard. At that weight it's an ordinary parcel. Ask for the condensers and lamp to be packed apart from the head.

Should come with it

Double condenser set
Filter drawer
35mm and 6x6 carriers
Red safety filter
Power supply (Chromega B600 version)

Hard to find if missing

Chromega B power supply
Supplementary condenser for lenses under 50mm
Adapter kit for fitting a dichroic head

Check the listing photos against these lists, and ask the seller about anything you can’t see. A missing carrier, condenser or lens board should come off the price.

What to check

KHB calls the B600 fully serviceable because it shares so many parts with the C700, so missing pieces are the usual problem. Chromega B heads need their external power supply, and KHB warns that a non-standard lamp can damage it.

01Carriers: Look in the photos for the 35mm and 6x6 carriers. Both should be the spring-hinged rapid shift type.
02Condensers: Ask for a photo of the condenser pair out of the head. Clear glass with no chips is what you want.
03Head type: Ask whether it's the condenser head or a Chromega B dichroic. The dichroic version needs its power supply in the box.
04Lamp: Ask the seller to light the lamp with the head closed. An even glow with no leaks around the lamp cap is good.
05Lens: Check the photos for a 39mm lens screwed into the lens stage. A 50mm lens covers 35mm, and a 75mm lens covers 6x6.
06Bellows: Ask for a photo of the bellows lit from inside in a dark room. No pinholes or splits should show.
07Elevation: Ask whether the carriage holds when the lock knob is released. It should stay where you leave it.
08Alignment: On arrival, check the baseboard, negative stage and lens stage with a spirit level. All three should read the same both ways.

New to used enlargers? How to check a used enlarger covers the bellows, the column, the lamp and alignment, and condenser, diffusion and color heads explains which light source suits how you print.

Buying guide

Which one to buy

§ Oct 15, 2026

We'd buy elite_vintage's B600 at $365, the only Chromega B dichroic here titled with its power supply, plus a new bulb, though no shipping is quoted, so ask or plan on pickup. For black and white, hiwasseharold's condenser B600 is $269.79 delivered, shown with its baseboard, manual and a bag of parts. There are at least 8 for sale, and the typical one that quotes shipping asks $210 to $410 delivered. A Chromega B head needs its external power supply, which is hard to find alone, so on anri-692346's boxed dichroic outfit with 2 lenses and 2 carriers at $321.63 delivered, ask whether the supply is in the box. Skip the $999.99 boxed Concept Six set, about 3.6 times the $296 median, and be wary of the $170.82 unit from a 97.2% seller whose photo shows only a box.

Listed now: 8
For parts: 0
Typical ask: $210–$410
Full range: $100–$1,000

Cheapest
$269.79est. delivered
The lowest delivered B600 with its baseboard from a well-rated seller, $269.79, and the photo shows the condenser head and column laid flat beside the baseboard, manual and a bag of parts. No carrier or lens is titled, but B600 carriers are shared with the B66 and C700, so they're easy to match.
OMEGA System 600 Photo Condenser Enlarger and Chromega Enlarger B 600
View on eBay ↗: OMEGA System 600 Photo Condenser Enlarger and Chromega Enlarger B 600$269.79 est. delivered
Best value
$365.00+ ship
The only Chromega B dichroic here titled with its power supply, the part that's hard to find alone, and it comes with a new bulb. The photo shows the color dials on the head and the enlarger on its baseboard, but no carriers are named and no shipping is quoted, so ask about both.
OMEGA B600 Enlarger w/ CHROMEGA B Dichroic & Power Supply & Brand New Bulb
View on eBay ↗: OMEGA B600 Enlarger w/ CHROMEGA B Dichroic & Power Supply & Brand New Bulb$365.00 plus shipping (not stated)

Delivered prices include shipping as eBay quoted it to a US address on Oct 15, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.

Snapshot

For sale on eBay

8 of 8 listed

Checked Oct 15, 2026. Some may have sold.

Delivered prices include shipping as eBay quoted it to a US address on Oct 15, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.

Used
- Cheapest
OMEGA System 600 Photo Condenser Enlarger and Chromega Enlarger B 600
$269.79est. delivered
$230.00 + $39.79 shipping
Buy It Now$230.00
Good buy
Condenser head, column, baseboard and manual in the photo. The title also names a Chromega B 600; ask if both heads come.
Seller: hiwasseharold
100% positive
View on eBay ↗: OMEGA System 600 Photo Condenser Enlarger and Chromega Enlarger B 600
Used
- Best value
OMEGA B600 Enlarger w/ CHROMEGA B Dichroic & Power Supply & Brand New Bulb
$365.00+ shipping
$365.00 · shipping not stated
Buy It Now$365.00
Good buy
Chromega B dichroic with its power supply and a new bulb. No shipping quoted; pickup or ask.
Seller: elite_vintage
100% positive
View on eBay ↗: OMEGA B600 Enlarger w/ CHROMEGA B Dichroic & Power Supply & Brand New Bulb
Used
OMEGA Darkroom Enlarger B-600 50mm Lense without Base
$194.22est. delivered
$120.00 + $74.22 shipping
Buy It Now$120.00
Our take
Titled with a 50mm lens and no baseboard, though the photo shows one. Ask what ships.
Seller: apvictoryp
100% positive
View on eBay ↗: OMEGA Darkroom Enlarger B-600 50mm Lense without Base
Open box
OMEGA CHROMEGA B Dichroic B600 Enlarger 2 Lenses, 2 Negative Carriers Orig Box
$321.63est. delivered
$290.00 + $31.63 shipping
Buy It Now$290.00
Offers accepted
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Our take
Chromega B dichroic with 2 lenses, 2 carriers and the original box. No power supply titled.
Seller: anri-692346
100% positive
View on eBay ↗: OMEGA CHROMEGA B Dichroic B600 Enlarger 2 Lenses, 2 Negative Carriers Orig Box
Used
Vtg Omega Concept Six photo enlarger base, B-600 enlarger, & B-600 lamphouse
$429.99delivered
$429.99 · free shipping
Buy It Now$429.99
Offers accepted
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Our take
B-600 on a Concept Six base, with free shipping. No carriers or lens titled.
Seller: nyccowgirl7
99.9% positive
View on eBay ↗: Vtg Omega Concept Six photo enlarger base, B-600 enlarger, & B-600 lamphouse
Used
- Check the seller
Omega B-600 Photo Enlarger With Base & Stand
$170.82est. delivered
$99.88 + $70.94 shipping
Buy It Now$99.88
Offers accepted
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Check the seller
Titled with base and column, but the photo shows only the original box. Seller at 97.2%.
Seller: rapid_ship
97.2% positive
View on eBay ↗: Omega B-600 Photo Enlarger With Base & Stand
Open box
- Priced high
Vtg Omega Concept Six base, B-600 enlarger, & B-600 lamp-house New Open Box READ
$1,076.53est. delivered
$999.99 + $76.54 shipping
Buy It Now$999.99
Offers accepted
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Priced high
Boxed Concept Six set titled new open box, about 3.6 times the median.
Seller: adameyer-4
100% positive
View on eBay ↗: Vtg Omega Concept Six base, B-600 enlarger, & B-600 lamp-house New Open Box READ
Used
- Priced high
Omega B-600 Photographic Enlarger+Darkroom Bundle. See Description for List.
$620.00+ shipping
$620.00 · shipping not stated
Buy It Now$620.00
Priced high
Darkroom bundle listed in the description, about 2.1 times the median. The photo shows the lamp lit and carriers. No shipping quoted; pickup or ask.
Seller: cdocktees
100% positive
View on eBay ↗: Omega B-600 Photographic Enlarger+Darkroom Bundle. See Description for List.

Prices change daily. The live eBay search shows everything listed now, including anything new since Oct 15, 2026.

See every listing on eBay ↗eBay search

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Brand

Format

Light

Read

Omega B600

B600 condenserChromega B600 dichroic, with standard or stabilized power supplyB600 retrofitted with a C700 or C760 dichroic headB635, the 35mm sibling on the same chassis

Spec at a glance

Maker

Omega

Format

Medium format, up to 6x6 cm

Stock head

Condenser

Launched

1976

Made

1976–1979

Takes

Minox and 110 up to 6x6 cm

Light source

Double condenser, 75 W PH140 opal lamp

Lens mount

Lens stage threaded for 39mm lenses

Column

Steel girder with scale, 39 in maximum height

Biggest print on the baseboard

11x14 in, on a 14x19 in baseboard

Weight

About 10.5 kg (23 lb)

Also listed as

B-600, Omega B-600, Chromega B600

Typical eBay ask (Oct 15, 2026)

$210–$410

Light, carriers, bellows and lens

Light source and lamp

The stock head is a double condenser lamphouse with a 75 W PH140 teardrop opal lamp, which KHB Photografix still sells new. For 110, 126 and other tiny negatives with lenses shorter than 50mm, a supplementary condenser goes over the main pair. The Chromega B600 has a Chromega B dichroic head instead, with a 75 W 27 V halogen lamp and an external power supply. Ask which head it has and for a photo with the lamp lit.

Carriers and condensers

The B600 takes the spring-loaded rapid shift glassless carriers shared with the B66, B635 and C700, from Minox up to 6x6 cm, plus a 6x4.5 carrier and a 6x6 glass carrier. Since the C700 used the same carriers, spares are easy to match. Look in the photos for the carriers you'll print with.

Column and bellows

The column is a rigid steel girder with a reference scale, a constant-force counterbalance spring and a lift-and-lock carriage with an oversized lock knob. Two focus rods carry the bellows. Ask whether the carriage holds where it's locked, and ask for a photo of the bellows with a light inside.

Alignment

KHB credits the twin focus rods with keeping focus and alignment precise. On arrival, check the baseboard, negative stage and lens stage with a spirit level in both directions, and recheck after fitting any dichroic head adapter.

Lens

There's no lensboard to lose, because the lens stage itself is threaded for 39mm Leica-mount lenses. Some B600s were sold as packages with a 50mm lens and a 35mm carrier. Check the photos for a lens screwed into the stage if one is listed.

Timer and power

The condenser head plugs straight into an enlarging timer. The Chromega B head needs its own power supply, standard or stabilized, and KHB warns that a non-standard lamp can damage it. If a dichroic head is in the listing, look for the power supply in the photos.

Shipping and pickup

KHB lists its refurbished B600 at about 10.5 kg (23 lb), on a 14x19 in baseboard. At that weight it's an ordinary parcel. Ask for the condensers and lamp to be packed apart from the head.

Should come with it

Double condenser set

Filter drawer

35mm and 6x6 carriers

Red safety filter

Power supply (Chromega B600 version)

Hard to find if missing

Chromega B power supply

Supplementary condenser for lenses under 50mm

Adapter kit for fitting a dichroic head

Check the listing photos against these lists, and ask the seller about anything you can’t see. A missing carrier, condenser or lens board should come off the price.

What to check

01Carriers: Look in the photos for the 35mm and 6x6 carriers. Both should be the spring-hinged rapid shift type.

02Condensers: Ask for a photo of the condenser pair out of the head. Clear glass with no chips is what you want.

03Head type: Ask whether it's the condenser head or a Chromega B dichroic. The dichroic version needs its power supply in the box.

04Lamp: Ask the seller to light the lamp with the head closed. An even glow with no leaks around the lamp cap is good.

05Lens: Check the photos for a 39mm lens screwed into the lens stage. A 50mm lens covers 35mm, and a 75mm lens covers 6x6.

06Bellows: Ask for a photo of the bellows lit from inside in a dark room. No pinholes or splits should show.

07Elevation: Ask whether the carriage holds when the lock knob is released. It should stay where you leave it.

08Alignment: On arrival, check the baseboard, negative stage and lens stage with a spirit level. All three should read the same both ways.

New to used enlargers? How to check a used enlarger covers the bellows, the column, the lamp and alignment, and condenser, diffusion and color heads explains which light source suits how you print.

Omega B600

Spec at a glance

Light, carriers, bellows and lens

What to check

Which one to buy

For sale on eBay

OMEGA System 600 Photo Condenser Enlarger and Chromega Enlarger B 600

OMEGA B600 Enlarger w/ CHROMEGA B Dichroic & Power Supply & Brand New Bulb

OMEGA Darkroom Enlarger B-600 50mm Lense without Base

OMEGA CHROMEGA B Dichroic B600 Enlarger 2 Lenses, 2 Negative Carriers Orig Box

Vtg Omega Concept Six photo enlarger base, B-600 enlarger, & B-600 lamphouse

Omega B-600 Photo Enlarger With Base & Stand

Vtg Omega Concept Six base, B-600 enlarger, & B-600 lamp-house New Open Box READ

Omega B-600 Photographic Enlarger+Darkroom Bundle. See Description for List.

Compare with

Omega B22

Omega C760

Durst M605

Beseler Printmaker 67

Keep exploring

Omega B600

Spec at a glance

Light, carriers, bellows and lens

What to check

Which one to buy

For sale on eBay

OMEGA System 600 Photo Condenser Enlarger and Chromega Enlarger B 600

OMEGA B600 Enlarger w/ CHROMEGA B Dichroic & Power Supply & Brand New Bulb

OMEGA Darkroom Enlarger B-600 50mm Lense without Base

OMEGA CHROMEGA B Dichroic B600 Enlarger 2 Lenses, 2 Negative Carriers Orig Box

Vtg Omega Concept Six photo enlarger base, B-600 enlarger, & B-600 lamphouse

Omega B-600 Photo Enlarger With Base & Stand

Vtg Omega Concept Six base, B-600 enlarger, & B-600 lamp-house New Open Box READ

Omega B-600 Photographic Enlarger+Darkroom Bundle. See Description for List.

Compare with

Omega B22

Omega C760

Durst M605

Beseler Printmaker 67

Keep exploring