Sekonic L-28

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The Sekonic Studio L-28 is a series of hand held light meter. The particular model designs is directly related to the Director line of meters originally created by Donald W. Norwood and cinematographer Karl Freund. This model was replaced in 1976, and the model number was changed to L-398.

L-28A Studio S

1957-1970 This model has been sold initially as a "Brockway S" branded meter in the Norwood Director line. Often referred to a Model S or Type S. The Sekonic Studio S unit has a black face compared to the Brockway version with a silver face. Both meters bottom plates are printed with Sekonic Studio S and Made in Japan. The Sekonic version has the L-28 model number while the US Brockway version Model S. The Brockway branding was later dropped entirely after a merger. There are many different minor variations and branding of "Studio S" meters, some with Polaroid and LVS scales some without.

The more common versions of the meter has the modern shutter speed printed with 1/4, 1/8, 1/15, 1/30, 1/60, 1/125, 1/250, 1/500 and 1/1000. There are additional line marks for 1/5, 1/10, 1/25, 1/50, 1/100, 1/200, 1/400, 1/800 and 1/1200; that are more common on the previous models.

L-28A2 Studio S2

1970-1976 This unit replaced the L-28A. Sekonic calls this minor revision the L-28A2, but many examples show the model number unchanged from L-28A. To identify the A2 model the aperture scale increases from f45 to f90.

Accessories

Direct reading slides

slide ASA Shutter
Slide 1 ASA 10 1/50 (1/60)
ASA 25 1/100 (1/25)
ASA 50 1/200 (1/250)
Slide 2 ASA 16 1/50 (1/60)
ASA 32 1/100 (1/125)
ASA 64 1/200 (1/250)
Slide 3 ASA 40 1/50 (1/60)
ASA 80 1/100 (1/125)
ASA 100 1/125
ASA 200 1/250

L-28C Studio Deluxe

1964-1970 This unit is a more advanced model of the L-28A. With a larger assortment of direct reading slide options. The Photosphere, Photodisc and Photogrid are now different from the previous versions. They are now on a threaded bayonet style attachment and are renamed Lumisphere, Lumidisc and Lumigrid. Calculator dial changes for improved readability and a needle lock button. The Polaroid number scale is no longer on this meter.

Direct reading slides

slide shutter
High slide
ASA 10 (DIN 11)
1/50 (1/60)
ASA 25 (DIN 15) 1/30 (1/25)
ASA 40 (DIN 17) 1/60 (1/50)
ASA 50 (DIN 18) 1/60 (1/50)
ASA 64 (DIN 19) 1/60 (1/50)
ASA 80 (DIN 20) 1/60 (1/50)
ASA 100 (DIN 21) 1/60 (1/50)
ASA 160 (DIN 23) 1/125 (1/100)
ASA 200 (DIN 24) 1/250 (1/200)
ASA 400 (DIN 27) 1/250 (1/200)

L-28C2 Studio Deluxe

1970-1976 This unit replaced the L-28C.

Specs

L-28A L-28A2 L-28C L-28C2
Year 1957 to 1970 1970 to 1976 1964 to 1970 1970 to 1976
Measuring system incident and reflected
Measuring element Selenium
Measuring range fc 3 to 1000
approx. EV 3.5 to 12
EV 4 to 17
ASA 1 to 1000 ASA 6 to 12,000 ASA 8 to 12,000 ASA
DIN 1 to 31° DIN 9 to 42° DIN 10 to 42° DIN
Shutter 140s to 1/1200 sec. 1s to 1/2000 sec.
Aperture f1.4 to 45 f1.4 to 90 f1 to 45 f1 to 90
Cine 8 to 64 fps 8 to 128 fps
EV 1 to 20 EV
Dimensions x x 106 × 58 × 30 mm
Weight x x 250g

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