I'm glad you found a nice SP (and 35/1.8) at a reaaaallllly good price. I unfortunately was not as lucky. Maybe Japan's humid climate has taken its toll because quite a lot seem to have varying degrees of finder separation and/or fungus or haze and have been opened up.
I've tried both vintage and reissue 35/1.8s and the reissue is definitely a better performer wide open and more flare resistant.
As for dropping $4000 on it, if you can afford it and have the desire why not :angel:
I love black paint cameras so it was an easy decision for me 🙂[/QUOTE]
I have used Nikon rf cameras for many years ,
I agree with Jon's assessment of the older sp and s3 cameras , many have picked up flare , haze fungus and separation in the last 60 years .
Even the really beautiful looking ones I have seen with some finder deteriation .
The going price to have one completely serviced is $300 - $400
Many sp have a low contrast rf patch and the wide angle 28/35 finder has black spots .
Most Leica cameras from the same time period are also in need of service .
It is the age of rf cameras and the fact that the finder systems are very complicated with many glass surfaces , prisms and half mirrored silver or gold glass surfaces .
When you consider the price of a new Leica camera with a 35 f2 lens the black sp kit seems like an incredible deal in comparison.
I had one and sold it / it was too much to have in a carry around camera and the thought of dropping or damaging it , well it sat on a shelf in the original box .
I use the Nikon s2 with separate bright line finders for wide angle as I have for 38 years now .
Sure they are not as convenient , you get used to the camera you use every day and it becomes habit from it familiarity .