The 503 and Other V System Cameras and Components 125
Figure 6-1 500/501/503 components. (1) focusing hood, (2) focusing screen, (3) screen
retaining clip, (4) Flash ready signal*, (5) focusing ring and scale, (6) shutter speed and
aperture interlock button (7) central lens index (8) depth-of-fi eld scale, (9) aperture ring
and scale, (10) shutter speed selector ring, (11) PC fl ash terminal, (12) lens accessory
mount, (13) exposure value scale, (14) exposure value index, (15) lens lock and release
button, (16) drive shaft, (17) cable release socket, (18) shutter release button, (19) mirror,
(20) nameplate, (21) winding crank bayonet*, (22) pre-release button, (23) winder bayonet
mount*, (24) strap lug, (25) winding crank, (26) winding crank index*, (27) frame counter,
(28) magazine status indicator, (29) fi lm winding crank, (30) magazine driving gear, (31)
magazine catch, (32) focusing hood magnifi er, (33) magazine slide, (34) fi lm insert key, (35)
fi lm consumption indicator, (36) fi lm tab holder, (37) magazine support slots, (38) magazine
supports, (39) camera support, (40) tripod socket, (41) quick coupling plate, (42) dedicated
fl ash connection*, (43) connection cover*, (44) lens coupling shaft, (45) manual stop down
control, (46) lens location index, (47) accessory rail, (48) strap lug, (49) fi lm speed selector*.
*Not on 500/501 models.