The Mamiya 528TL is a 35mm film SLR camera made by Mamiya and introduced in 1967. It can be found with either Mamiya or Mamiya/Sekor markings. It was also marketed in the USA as the Sears Auto 35TL.


Mamiya Sekor 528TL 03

Mamiya/Sekor 528TL

Mamiya Sekor 528TL 04

Mamiya/Sekor 528TL

Mamiya Sekor 528TL 06

Mamiya/Sekor 528TL

  • Lens: Mamiya/Sekor 48mm f/2.8 3 elements in 3 groups; filter thread: 52mm; serial no.none
    • Mount: Fixed lens
    • Aperture: f/2.8-f/22; setting: manual ring on the lens-shutter barrel, for Auto set the ring to "A"
    • Focus range: 0.8-10m +inf
  • Focusing: Fresnel matte screen with central microprism and collar
  • Shutter: Copal-X central leaf shutter; speeds:1/15-1/500 +B [1]
    • Setting : ring and scale on the lens-shutter barrel
  • Shutter release: on the top plate, w/ cable release socket
  • Cocking lever: also winds the film, rapid, long stroke, on the top-plate
  • Frame counter: window beside the cocking lever, auto reset, advance type
  • Viewfinder: SLR pentaprism
  • Mirror: instant return
  • Exposure meter: CdS cell exposure meter, behind the lens, a spot meter with approximately a 10-degree center spot; needle visible in the viewfinder
    • Film speed range: 10-400 ASA setting: lever and scale on the bottom of the lens-shutter barrel
    • Metering range: EV 7-17 in 100 ASA
    • Exposure setting: Shutter priority Auto, set the speeds to desired one, then set the aperture ring to "A"; aperture scale is visible in the finder w/ over and under exposure indexes
  • Re-wind lever: folding crank type, on the top plate
  • Re-wind release: button on the bottom plate
  • Flash PC socket: on the front of the camera
  • Hot-shoe
  • Back cover: hinged, open by a latch on the left side of the camera
  • Engraving on back cover: Mamiya Camera Co. Ltd.
  • Tripod socket: ¼"
  • Strap lugs
  • Body: metal; Weight: 683g
  • Battery: 1.5 V silver 676 (accepts GPA76 alkaline)
  • Battery chamber: on the bottom plate
  • On/off switch: none

Notes and references[]

  1. The shutter and mirror mechanisms are very complex. When viewing through the lens, the shutter must remain in open position. So, the film protected by the mirror which, in position lowered, isolates the darkroom from any penetration of light. When you press the shutter: The shutter is closed again; The mirror is raised; The shutter opens and is closed again the time of the catch of sight.; The mirror is lowered; The shutter is reopened.