The photos and captions below illustrate the main differences among the SR-T series models as sold and marketed in the US. I do not own a SR-T 100 or 200, but I do have a SC which is the same as the 200 as far as I can tell. The 100 only had shutter speeds to 1/500. The MC, MCII, SC and SCII models were produced under contract for department stores, oil companies and credit card companies. Most of these don’t have a self-timer.
Other than the SR-T 101, these models were named differently (and occasionally had different features) outside of the US.
SR-T 102
SR-T Super (Japan)
SR-T 303 (Europe) – did not have aperture visible in viewfinder.
SR-T 201
SR 101 (Japan)
SR-T 101B (Europe)
SR-T 202
SR 505 (Japan)
SR-T 303B (Europe)
Since these were produced for a relatively long time, there are undoubtedly more subtle variations between early and late models of each. A not-so-subtle variation of the SR-T 102 featured the mirror lock-up early on but it did not appear on the later 102 models.
FRONT
DOF Preview lever – press once to stop down. Press again to release. Shutter must be cocked for this to operate.
Prism modified to include the aperture periscope window. DOF Preview lever – press once to stop down. Press again to release. Shutter must be cocked for this to operate.
DOF Preview lever – press once to stop down. Press again to release. Shutter must be cocked for this to operate.
DOF Preview lever – press in and hold to stop down. Aperture returns to full-open when released. Shutter does not need to be cocked for this to operate.
Prism modified to include the aperture periscope window. DOF Preview lever – press in and hold to stop down. Aperture returns to full-open when released. Shutter does not need to be cocked for this to operate.
BACK
Round, selectable ASA/DIN reminder.
Round, non-selectable ASA/DIN reminder.
Round, non-selectable ASA/DIN reminder.
Square ASA/DIN reminder. Holds film box top.
Square ASA/DIN reminder. Holds film box top.
Left Front Details
First version identifiable by the black shutter speed dial. Later versions were silver. Note the cold shoe and mirror lock-up switch next to self timer. Has metal aperture setting ring.
Note silver shutter speed dial and hot shoe. Mirror lock-up beside the self timer switch. This specific copy has plastic aperture setting ring. I have another one that has a metal ring. Go figure.
No self-timer or mirror lock-up. Includes hot shoe on prism. Metal aperture setting ring.
Hot shoe on prism. No mirror lock-up. Plastic aperture setting ring.
Hot shoe on prism. No mirror lock-up. Metal aperture setting ring.
Right Front Details
Both FP and X sync PC sockets
One PC socket. Switch changes between FP and X.
Both FP and X sync PC sockets.
X sync PC socket only.
One PC socket. Switch changes between FP and X.
Viewfinders
Micro-prism focusing spot. Selected shutter speed visible in viewfinder.
Micro-prism/Split image focusing spot. Both selected shutter speed and aperture visible in viewfinder.
Micro-prism focusing spot. No shutter speeds or aperture information visible in viewfinder.
Vintage Camera Digest 