The quality is ok on the whole, it has some small flaws.
Soapy and unfocused at 1.8 on today's technology. As a shirik, I ingested it, but it didn't do much. and will be valued almost $20,000 in the year 2022. As a result, I sold and bought a sharp 40 2.8. No, now is not the time to buy it.
Pros
Aperture
Cons
The secondary market price is excessive and wholly unreasonable because it is soapy.