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SEI Photometer User manual

User manual for SEI Photometer. 12 pages. Read the original PDF, download or print a copy without registration.

12 pagesOriginal document6.5 MB PDF
SEI Photometer manual cover
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Document details

Brand
Sei
Model / document
SEI Photometer
Document type
User manual
Language
Check the original document
Pages
12
File size
6.5 MB
Category
Film cameras
Document date
Not specified in catalog

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Page 2 · Read text
Approximate relationships of different brightness units
A toot lam 18 candles/sq. {00%
0.00221 candles/sq inch = 3.43 eancles/sa, mete
Photometer {og foot 555 ee
ae Logfoot Foot lamberts _Candles/sa foo
Low 2b 0.01 (1/100) 0.0032 (1/314)
(ed index) { To 1 (1/10) 0.032 (1/31);
Lo 1 ox a |
Normal 10 10 32
“wniteingexy {20 100 2
High ; 30 1000 320
olueindex).. { 40 10000 3200
= i
Values for ° 1 ox2
interpolation 1 13 oa
between any of 2 16 os
tho above, 3 2 063
the decimal a 25 08
place to be 5 32 19 SEI )(s6C
Sdjusted as 6 ry 13 ws
required 7 5 16 SALFORD ELECTRICAL
8 63 20 INSTRUMENTS LIMITED
9 8 25
0 0 32

Other definitions used ia illuminating eaginee
ound in B.$.230.

donated to www.butkus.us

Salford Electrical Instruments

EXPOSURE
PHOTOMETER
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PDF verified 2026-10-10.