Olympus OM-1 Repair Manual

E-17
II. SHUTTER AND MIRROR
1. Excessive or insufficient speed of the curtains.
1) Improper adjustment of CA8531 (Nut)
The curtain speed is adjusted by 8531. Refer to the checkup column
and make adjustment.
Turn 8531 to the right to weaken the curtain tension and thus slow
down the speed.
Turn 8531 to the left to increase the tension and thus speed up the
curtain run.
Adjustments may be made by 8525 (Shaft) and 8524 (Shaft). Turn them
to the right for stronger tension and faster spped,and to the left for
weaker tension and slower speed. Care must be taken not to deform
the driver groove at the upper end of 8525 and 8524, as it will cause
poor operation of the curtains.
http://olvmpus.dcmentia.org/Hardwurc

Olympus OM-1 Specifications

General

PictBridge	-
USB version	3.2 Gen 1 (3.1 Gen 1)
Microphone in	Yes
USB connector	USB Type-C
Headphone outputs	1
HDMI connector type	Micro
Headphone connectivity	3.5 mm
Bluetooth	No
Bluetooth version	4.2
Image editing	Crop, Resizing
Photo effects	Sepia, Black&White
White balance	Sunny, Flash, Tungsten, Fluorescent, Underwater, Shade
Shooting modes	Program, Auto, Manual
Image processor	TruePic X
Self-timer delay	- s
Field of view	100 %
Display diagonal	3 \
Display resolution	1620000 dot
Display aspect ratio	3:2
Display diagonal (metric)	7.6 cm
Magnification	1.65 x
Viewfinder type	Electronic
Viewfinder resolution	5760000 pixels
Cables included	USB
Video resolutions	4096 x 2160, 3840 x 2160, 1920 x 1080 pixels
Motion JPEG frame rate	60 fps
Video formats supported	H.264, MPEG4, MOV
Maximum video resolution	4096 x 2160 pixels
Quantity per pack	1 pc(s)
Audio system	stereo
Compatible memory cards	SD, SDHC, SDXC
Fastest camera shutter speed	1/8000 s
Slowest camera shutter speed	60 s
Storage temperature (T-T)	-20 - 60 °C
Operating temperature (T-T)	-10 - 40 °C
Storage relative humidity (H-H)	10 - 90 %
Operating relative humidity (H-H)	30 - 90 %
Light metering	Centre-weighted, Evaluative (Multi-pattern), Spot, Electro-Selective Pattern (ESP), Highlight-weighted
ISO sensitivity	80, 100, 25600, 102400
Light exposure modes	Aperture priority AE, Manual, Touch priority AE, Auto, Shutter priority AE
ISO sensitivity (max)	102400
ISO sensitivity (min)	80
Light exposure control	Program AE
Light exposure correction	± 5EV (1/2EV; 1/3EV step)
Number of measurement zones	324
Battery type	BLX‑1
Battery life (max)	1.5 h
Battery life (CIPA standard)	520 shots
Material	Magnesium
Product color	Black
Focus	TTL
Focus adjustment	Auto/Manual
Filter size	62 mm
Digital zoom	- x
Focal length range	12 - 40 mm
Lens mount interface	Micro Four Thirds (MFT)
Maximum aperture number	2.8
Minimum aperture number	22
Number of diaphragm blades	7
Lens structure (elements/groups)	14/9
Maximum focal length (35mm film equiv)	80 mm
Minimum focal length (35mm film equiv)	24 mm
Megapixel	20.4 MP
Camera type	MILC
Sensor type	MOS
Total megapixels	22.9 MP
Image sensor size	4/3 \
Image formats supported	EXIF, RAW
Supported aspect ratios	3:2, 6:6, 3:4, 4:3, 16:9
Maximum image resolution	10368 x 7776 pixels
Image sensor size (W x H)	17.3 x 13 mm
Image stabilizer location	Body
Still image resolution(s)	10368 x 7776, 8160 x 6120, 5760 x 4320

Weight and Dimensions

Depth	72.7 mm
Width	138.8 mm
Height	91.6 mm
Weight	511 g
Lens length	84 mm
Lens weight	382 g
Lens diameter	69.9 mm
Weight (including battery)	599 g