billcress@ix.netcom.com
Tel: 973-694-1280 Fax: 973-694-6965
     
 

 
  Flashbulb Guide Number Information
Clear Flashbulbs are used for black and white film.
Blue Flashbulbs are used for color film daylight
balanced and also for Black and White film.

All values are approximations, reflector size and finish, shape, room size, ceiling heights,wall and ceiling color, average subject, natural and ambient light, etc. all have an affect on your final exposure.

You should perform a variety of test exposures under
different conditions to familiarize yourself with the use of guidenumbers and exposure values using flashbulbs.


"Sea of Light"
Photo By: Paul Pilcher

 
 
Number in parenthesis under lamp type refers to reflector size and type.
(1) = 4-5 inch polished reflector

(2) = 6-7 1/2 inch polished reflector
(3) = large studio reflector
(4) = 3 inch polished reflector
(5) = 2 inch polished reflector

Guide Number = f: stop
Distance To Subject

To determine your lens opening choose a guide number based on your ASA film speed,
and your chosen
shutter speed. Divide that guide number by the distance to your subject.
The result is the f: stop to set on your lens.



 
 
All values are approximations, reflector size and finish, shape, room size, ceiling heights,wall and ceiling color, average subject, natural and ambient light, etc. all have an affecton...

Click Here for Blue Bulbs.

Click Chart for
Film Rating Conversion Table.

All values are approximations, reflector size and finish, shape, room size, ceiling heights,wall and ceiling color, average subject, natural and ambient light, etc. all have an affecton...



Click Here for Clear Bulbs.
 
 
PHOTOGRAPHIC LAMPS - FLASH
 
Class
Manufacturer
Type
Lumen Secs.
Light Output
Color
Temp. K
Base
Use
F
(5 milliseconds to peek)
Amplex
Duraflash
General Electric
Solar Electric
Sylvania Super Flash
Westinghouse
SM
SM
SM
SM
SF
SM
4,700
5,000
4,700
5,000
5,000
5,000
3500K
3300K
3300K
3300K
3300K
3300K
B
B
B
B
B
B
(a)
(b)
(b)
(b)
(b)
(a)
M
(5 milliseconds to peek)
Amplex









Amplex-Norelco
Dura-Flash

















Duramite
General Electric











Solar Electric








Sylvania Super Flash














Westinghouse
# 5
# 5A
# 5B
# 11
# 11B
# 22
# 22B
PF3
PF4
# 5
# 5A
# 5B
# 5R
# 11
# 11A
# 11B
# 11R
# 22
# 22A
# 22B
# 22R
# 8
# 5
# 5B
# 8
# 5
# 5B
# 8
# 11
# 22
# 22B
# 5
# 5B
# 11
# 11B
# 22
# 22B
# 25C
B't'm 5
# 0
# 40
# 40B
# 2
# 2B
# 8
# 5
# 5B
# 11
# 11B
# 22
# 22B
16,000
14,500
7,500
30,000
13,500
63,000
29,000
6,000
11,000
16,000
11,000
7,000
16,000
28,000
23,000
14,000
28,000
65,000
60,000
28,000
65,000
7,000
16,000
7,000
7,000
29,000
13,500
63,000
27,000
16,000
7,000
28,000
13,000
62,000
27,000
20,000
8,000
14,000
7,000
20,000
30,000
14,000
62,000
28,000
7,000
16,000
7,500
30,000
13,500
63,000
29,000
3800K
3400K
6000K
3800K
6000K
3800K
6000K
3800K
3800K
3800K
3200K
6000K
3800K
3800K
3200K
6000K
3800K
3800K
3200K
6000K
3800K
3800K
3800K
6000K
3800K
3800K
6000K
3800K
6000K
3800K
6000K
3800K
6000K
3800K
6000K
3800K
6000K
6000K
3800K
3800K
3800K
6000K
3800K
6000K
3800K
3800K
6000K
3800K
6000K
3800K
6000K
B
B
B
S
S
S
S
B
B
B
B
B
B
S
S
S
S
S
S
S
B
B
B
B
S
S
S
S
B
B
S
S
S
S
S
B
B
B
B
S
S
S
S
S
B
B
B
S
S
S
S
(c)
(d)
(e)
(f)
(e)
(g)
(e)
(h)
(h)
(c)
(d)
(e)
(j)
(f)
(e)
(e)
(j)
(g)
(d)
(e)
(i)
(h)
(c)
(e)
(h)
(f)
(e)
(g)
(e)
(c)
(e)
(f)
(e)
(g)
(e)
(c)
(e) (j)
(d)
(h)
(c)
(f)
(c)
(g) (j)
(e) (j)
(h)
(c)
(e)
(f)
(e)
(g)
(e)
S
(5 milliseconds to peek)
Amplex
Duraflash






General Electric
Sylvania Super Flash
Westinghouse
# 50
# 50B
# 50
# 50A
# 50B
# 50
# 50B
# 3
# 3B
# 50B
# 50B
95,000
43,000
95,000
89,000
43,000
95,000
43,000
110,000
50,000
95,000
43,000
3800K
6000K
3800K
3200K
6000K
3800K
6000K
3800K
6000K
3800K
6000K
S
S
S
S
S
S
S
S
S
S
S
(k)
(e)
(k)
(d)
(e)
(k)
(e)
(k)
(e)
(k)
(e)
FP
(5 milliseconds to peek)
Amplex
Duraflash




General Electric
Sylvania Super Flash



Westinghouse
# 6
# 31
# 6
# 6A
# 6B
# 2A
# 6
# 31
FP26
FP26B
# 2A
# 6
# 31
16,000
77,000
16,000
8,000
5,000
77,000
16,000
77,000
15,000
7,5000
77,000
16,000
77,000
3800K
3800K
3800K
3200K
6000K
3800K
3800K
3800K
6000K
3800K
3800K
3800K
3800K
B
S
B
B
B
S
B
S
B
B
S
B
S
(l)
(l)
(l)
(d)
(e)
(l)
(l)
(l)
(l)
(e)
(l)
(l)
(l)
NOTE: Symbols found in chart above refer to keyed explanatory statements below.
 
B - Bayonet  
S - Screwbase
 
(A) Quick flash - 1/200th sec. duration.
(b) Quick flash - 1/200th sec. duration, battery use only.
(c) Midget bulb for between-the-lens shutter synchronization.
(d) Amber lacquered for use with indoor color film, without filters. Other characteristics same as bulb type aboce.

(e) Blue laquered for use with Daylight type color film. Indoors ot outdoors, wihtout filters. Other characteristics same as bulb type above.
(f) General all-purpose.
(g) Standard for between-the-shutter synchronization.
(h) Sub-minature flashbulb.

(i) Infrared for use with infrared films, without filters.
(j) Lamps fused for firing 110-volt circuits as well as with battery units.
(k) Slow peak-high light intensity to cover larger areas.
(l) For focal plane shutters only-long "plateau-peak".

 

 
   
  Flashbulbs

Electronic Flash    Adapter

Flashguns

   
   
  Benjamin Button
Cinderella Man
All The Kings Men
The Aviator
I Love Huckabees
The Missing
   
   
  CRESS Photo
manufactures
flashpans, flashguns ,
ignition devices for
flashbulbs, special
effects FX
apparatus...
   


Flash Information | Our Products | Graflex | Bulb Prices | Polariod Information
Philips Flashbulb Data | Professional Sync Cords | Flashpans & Special Effects | Megaflash Flashbulbs | Home


Bill Cress
PO Box 4262 Wayne, NJ 07474-4262
tel. (973) 694-1280 | fax. (973) 694-6965
billcress@ix.netcom.com


Site Design by: AMKWeb


Find camera stores and camera repair.

All Swimwear shown on our site is custom manufactured by
Renee Paz Swimwear, Honolulu Hawaii
808 393-2323, www.reneepaz.com