Brand: Mamiya
Category: Camera
Document Type:
Language: EN
Manual for M645 1000S
Uploaded: Aug. 9, 2025, 11:44 p.m.
Camera Setup and Operation:
- Insert Battery: Pull the battery chamber cover latch, insert the correct 6V battery (4SR44 or 4LR44), ensuring correct pole alignment.
- Attach Lens: Align the lens alignment dot with the camera body's dot, insert, and twist clockwise until it clicks.
- Attach Finder: Align the white dot on the finder release button with the finder's white dot, push and release the button, then attach the finder to the camera body.
- Load Film: Open the back cover, insert the film roll into the film spool stud, align the start mark on the leader paper, attach the leader paper to the take-up spool, and close the back cover.
- Advance Film & Cock Shutter: Turn the film advance crank until it stops.
- Take Photo: Press the shutter release button.
Key Features: Interchangeable finders and focusing screens, built-in electronic shutter, multiple-exposure capability, depth-of-field preview.
Troubleshooting and error codes
| Problem | Possible Cause & Solution |
|---|---|
| Shutter release button will not move |
A) Unlock shutter release button. B) Ensure film advance crank is turned to the stop position. |
| Mirror is locked in the up position (Cannot see through finder) |
A) Check battery: ensure it is correctly inserted, of the right type, and has sufficient charge. Press battery check button to lower mirror. B) If mirror lock-up lever was used, raise it. C) If shutter was released at the ◎ position, move dial to B or 1/1000 sec. |
| Developed film has fewer frames than expected |
A) Align start marks correctly when inserting film roll. B) Ensure film and insert start marks are properly aligned. |
| PD Prism Finder LED's do not illuminate | Ensure the shutter speed dial is not set to the ◎ position. |
| Electric shock when using flash | Always keep safety covers on unused terminals when attaching flash units. |