Talk:Osram

"Studio" Model codes

There are several flash models of the Osram "Studio" range which share a model code. I'm currently trying to figure it out.

IF YOU FIND ERRORS OR FIND SOMETHING OUT: Please correct it! I also suggest to build a (combined?) table for a better overview.

All flash guns feature the double reflector, invented by german Hans-Friedrich Borchers: it is tiltable and splittable for direct and indirect flash at the same time! Some call this the "Vario" reflector, but according to my findings it's only called Vario if it's also zoomable and computer controlled.

"Auto Check" LED: flash is being computer throttled (instead of manual mode or full power)

Flash guns of standard type

X GGS
▲ ▲ ▲
│ │ │
│ │ └─ 0 = upright, 1 = slanted
│ └── guide number; e.g. GN 30 @ 100 ASA, 40 mm 
└─── letter code; see below

Letters can be:

1. C = Computer?; computer controlled
2. V = Vario reflector; like above + zoomable (28 mm, 40 mm and 85 mm settings)
3. VM = Vario + Multi Control; integrated flash light meter (according to manual of VM 300 Studio)
4. VS = Vario + SCA; TTL metering via SCA 300 adapter (according to print on devices)

Numbers can be (at least):

• 180 – C only
• 250 – C, V, VS or VM
• 280 – VS only afaik
• 281 – reflector is skewed forward, VS or VM only
• 300 – reflector can also be turned sideways, VS or VM only
• 320 – C only
• 321 – reflector is skewed forward, C only

Flash guns of B or servo type

X GG
▲ ▲
│ │
│ └─ guide number; e.g. 44 = GN 44 @ 100 ASA, 40 mm 
└── letter code, see below

Letters can be:

1. S = Servo, works as servo flash only and has no double reflector (maybe just S 18)
2. B = B____?; double reflector
3. BC = B____? Computer?; double reflector, computer controlled
4. BCS = B____? Computer? Servo; double reflector, computer controlled and works as servo (slave) flash
5. BSD = B____? Servo? Dedicated ; double reflector, dedicated, works as servo (slave) flash only?

Numbers can be (at least):

• 18 – S only
• 25 – B, BC, BCS and BSD
• 28 – BCS
• 32, 320 – BCS and BSD only afaik
• 44, 440 – "on a stick", reflector can also be turned sideways, S, BCS and BSD