Magna

The Magna was the first camera shutter made by the Japanese company Seikosha before World War II. It was a leaf shutter with 25-50-100-B-T speeds. It appeared in 1930. The Japan Camera Museum website tells us that it was inspired by the German Vario shutter, and that volume production did not start until 1933 (see link below).

Cameras equipped:

• Konishiroku Lily Hand 6.5x9 folding plate (needle selftimer)
• Kuribayashi New Kokka Hand 6.5x9 folding plate

Links

• A page about early Japanese shutters at Japan Camera Museum
• Chronology at current Seiko site