The Seikosha-SLV was made by Seikōsha, the manufacturing branch of Hattori Tokei-ten. It was a quiet 5-blade leaf shutter with B, 1–500 speeds. A version without slow speeds existed.

Cameras with SLV shutter[]

Variants and cameras equipped (incomplete list, and not all variants are concerned):

Cameras with SLV shutter w/o slow speeds[]


  • Kamera no mekanizumu sono I: "Hai! Chīzu" Shunkan o torae-tsuzukeru shattā-ten (カメラのメカニズム・そのⅠ・「ハイ!チーズ」瞬間をとらえ続けるシャッター展, Camera mechanism, part 1 "Cheese!" Exhibition of instant taking shutters). Tokyo: JCII Camera Museum, 2002. (Exhibition catalogue, no ISBN number)