Lens design for SLR wideangles is difficult and compromised by the large gap between the rear element and film plane. That’s why a 28mm SLR lens will tend to be much bigger (and often more complex) than a 28mm rangefinder lens of the same era.
A longer lens doesn’t have these issues because physics.
You know about the relative merits of the different camera body types already.
Lens design for SLR wideangles is difficult and compromised by the large gap between the rear element and film plane. That’s why a 28mm SLR lens will tend to be much bigger (and often more complex) than a 28mm rangefinder lens of the same era.
A longer lens doesn’t have these issues because physics.
You know about the relative merits of the different camera body types already.