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

 
  Philips Flashbulb Data

from 1955, 1970 & 1976 Catalogs
Note: Guide Numbers shown are in meters

Page 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
 
 


 
 

"PHOTOFLUX"
flashbulbs

Photography today would be absolutely inconceivable without the flashlight that is produced by flashbulbs. Over 20 years ago, Philips introduced the first "Photoflux" flashbulb and from that time onwards the name "Photoflux" stood for quality and reliability. Philips research always went forward to produce better flashbulbs, supplying more light and taking less space and we dare to say that more and new important developments lie ahead.
The program now available comprises 10 different types, all made with the famous Philips accuracy.

"PHOTOFLUX"
flashbulbs M-class

These flashbulbs are suitable for between-the-lens shutters, they can be used with the open flash method as well as for cameras with built-in synchronization. For colour photography these lamps are available with a special blue filter lacquer. When ordering no. 97 is to be added to the type number of the clear type.

 

Type

Light
output
lmsec.

Max.
luminous
flux
Mlm.

Time to
full peak
msec.

Flash
duration at
half peak
msec.

Time to
half peak
msec.

Approx.
colour
temp.
°K

Voltage
range
V

Cap

Colour

Diam.

Ovl.

PF 3N

5500

0.5

20

8

16

3800

3-30

BA 15 s

clear

22

52

PF 14N

10000

0.8

20

10

16

3800

3-30

BA 15 s

clear

26

59

PF 25N

18000

1.4

20

12

15

3800

3-30

BA 15 s

clear

30

65

PF 25N/97

9000

0.7

20

12

15

6000

3-30

BA 15 s

blue

30

65

PF 38E

30000

1.8

20

16

13

3800

3-30

E 27

clear

50

102

PF 60E

62000

2.8

20

20

11

3800

3-30

E 27

clear

60

116


PF 60 E/97

30000

1.4

20

20

11

3000

3-30

E 27

blue

60

116

 

 

GUIDE NUMBERS
TENTATIVE VALUES

Exposure time in sec.

1/25-1/30 (X)

1/50-1/60 (M)

Daylight
colour film
negative

PF 25 N/97
PF 60 N/97

20
40

15
30

Daylight
colour film
reversal

PF 25 N/97
PF 60 N/97

15
30

12
25

GUIDE NUMBERS

Type

Exposure
time
sec.

Filmspeed in ASA

12-20

25-40

50-80

100-160

PF 3 N

1/400-1/500(M)
1/200-1/300(M)
1/100(M)
1/25(x) or 1/50(M)

5
7
10
15

7
10
15
20

10
15
20
30

15
20
30
40

PF 14 N

1/400-1/500(M)
1/200-1/300(M)
1/100(M)
1/25(x) or 1/50(M)

7
10
15
20

10
20
15
30

15
30
20
40

20
30
40
50

PF 25 N

1/400-1/500(M)
1/200-1/300(M)
1/100(M)
1/25(x) or 1/50(M)

10
15
20
30

15
20
30
40

20
30
40
50

30
40
55
80

PF 38 E

1/400-1/500(M)
1/200-1/300(M)
1/100(M)
1/25(x) or 1/50(M)

15
20
30
40

20
30
40
50

30
40
55
80

40
55
80
110

PF 60 E

1/400-1/500(M)
1/200-1/300(M)
1/100(M)
1/25(x) or 1/50(M)

20
30
40
50

30
40
55
80

40
55
80
110

55
80
110
155

 

FLASHTIME CHARACTERISTICS



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


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