Celestial Flash Unit
Modern control. Buff simplicity.
The Celestial brings TTL, HSS, Action and Color modes together in a compact, versatile flash designed for photographers who want modern control without a complicated workflow. It's equally comfortable in the studio or on location, giving you the flexibility to adapt as quickly as your shoot does.
The 500WS Celestial is an excellent choice for portraits, fashion, weddings, editorial work and location photography. It's especially well suited to photographers who want one light that can handle both controlled studio work and fast-moving environments.
TL and HSS give you more freedom when conditions change, while Action and Color modes let you prioritize motion-stopping performance or consistent color. A broad power range gives you room to fine-tune the look rather than simply getting the exposure.
The Celestial works beautifully with everything from compact reflectors and beauty dishes to large PLMs and softboxes. Start with one light and build toward a complete system as your photography evolves.
Perfect for newbies and pros alike!
The Paul C. Buff Celestial Flash Unit arrives ready to get you shooting, with a rechargeable 18V, 45Wh battery, dedicated battery charger, user-replaceable Celestial flashtube, magnetic rubber diffusion dome, and Celestial shipping cover included in the box. It also includes Paul C. Buff’s 30-Day Absolute Satisfaction Guarantee and 2-Year Factory Warranty
Add to your order:
12 F-Stop Power Variability
Adjustable in precise 1/10 f-stops
0.25 Ws to 500 Ws
Four Modes
ACTION, COLOR, HSS , TTL
HSS up to 1/8000 sec.
Incredible Color Consistency
+/- 50K at Any Power
In Color Mode.
Stop Motion
Up to 1/18,600 sec. (t.1)
In Action Mode.
Battery Powered
200 Full Power Flashes
Can be charged while shooting
LED Modeling Lamp
160W
Bright, adjustable, daylight-balanced.

An ultra-lightweight design with TTL, HSS, and battery power makes this 500WS strobe a powerhouse for the photographer on-the-go.

Color gel dome compatible with a bright LED modeling lamp means you get to play with colors and use you modeling lamp with optical snoots .

With a battery that can be charged while shooting, this unit offers a great alternative to AC power, allowing you a worry free studio shoot from start to finish.
An ultra-lightweight design with TTL, HSS, and battery power makes this 500WS strobe a powerhouse for the photographer on-the-go.
Color gel dome compatible with a bright LED modeling lamp means you get to play with colors and use you modeling lamp with optical snoots .
With a battery that can be charged while shooting, this unit offers a great alternative to AC power, allowing you a worry free studio shoot from start to finish.



Product Specifications
Showcase specifications about a product to help your customers making an informed decision about their purchase.
500WS
12 f-stops (full to 1/2048 power)
12 f-stops (full to 1/2048 power)
12 f-stops (full to 1/2048 power)
1.5 sec.
1/800 sec. (at full power) | 1/21,400 sec. (at minimum power)
1/340 sec. (at full power) | 1/13,500 sec. (at minimum power)
1/800 sec. (at full power) | 1/10,800 sec. (at minimum power)
1/340 sec. (at full power) | 1/8,200 sec. (at minimum power)
18VDC, 45Wh battery
IN: 100-240-VAC, 50/60Hz, 1A, OUT:20.5VDC, 2.5A Max
75’ – 200’, depending on orientation
Less than 5 volts (safe for use with DSLR cameras)
160 W Equivalent Daylight-Balanced
~90 mins. at full power on a fully charged battery
No internal fan
340lx
200lx
500lx
1500lx
800lx
1800lx
10mm single-ring flashtube (daylight-balanced and UV-coated)
2.3" display
Value
Fits stands up to 5/8 in.
Accepts umbrella rods up to 9mm
4.6 lbs. with Battery
6.5 in. (height) x 5.25 in. (width) x 8 in. (length)






640WS
500WS
800WS
9 F-Stop
12 F-Stop
9 F-Stop
1.7 Sec
1.5 Sec
3.5 Sec.
N/A
Yes
Optional (A/C or Battery)
N/A
Yes (with HUB)
Yes (with HUB)
1/588 to 1/13500 sec.
(Full to Minimum Power)
1/340 sec. (at full power) | 1/13,500 sec. (at minimum power)
1/520 sec. (at full power) | 1/17,300 sec. (at minimum power)
1/588 sec. to 1/8000 sec.
(Full to Minimum Power)
1/340 sec. (at full power) | 1/8,200 sec. (at minimum power)
1/520 sec. (at full power) | 1/5,500 sec. (at minimum power)
1/2000 at Full Power
1/800 sec. (at full power) | 1/21,400 sec. (at minimum power)
1/1,400 sec. (at full power) | 1/42,000 sec. (at minimum power)
Auto switching from 95-265VAC
Battery: 18VDC, 45Wh battery
Charger: IN: 100-240-VAC, 50/60Hz, 1A, OUT:20.5VDC, 2.5A Max
Input Power: 95 - 265VAC, 50/60Hz
8A
4.5 amps
Less than 5V
Less than 5V
Less than 5V
250W Bayonet Based Quartz
160W Equivalent Daylight-Balanced LED
800W Equivalent Daylight-Balanced LED
12mm Daylight Balanced and UV Coated
10mm single-ring flashtube (daylight-balanced and UV-coated)
14mm single-ring flashtube (daylight-balanced and UV-coated)
320 x 240 pixels ; 2.4" (LCD)
2.3" display (LCD)
3.5" display (LCD)
5/8"
5/8"
5/8"
up to 9mm rods
Accepts umbrella rods up to 9mm
up to 9mm
4.3 lbs
4.6 lbs. with Battery
7 lbs. 8 oz.
8 lbs. 11 oz. (with optional battery)
7" H x 5.4" W x 7.8" L
6.5 in. (height) x 5.25 in. (width) x 8 in. (length)
6.5 in. (height) x 4.875 in. (diameter) x 12.625 in. (length)
High Impact Polycarbonate
High Impact Polycarbonate
High Impact Polycarbonate
2-Year
2-Year
2-Year
Quick FAQ
Here are some answers to commonly asked questions:
Batteries must not be attached to the unit during travel. Place batteries in CARRY-ON. Do NOT travel with Celestial batteries in your checked luggage.
TTL is like "auto" for you flash. It communicates with your camera to create accurate exposures without the extra work. Great for events and weddings!
High speed sync allows you to exceed your cameras native sync speed. You sacrifice some light output, but in turn can raise your shutter speed to assist in certain motion stopping scenarios or more commonly to open your aperture all the way to use you flash with a shallow depth of field.







