I am very impressed with the Sigma Art series.
In my opinion they also represent excellent value.
I expect that my next camera purchase (If the specs fit the requirement) will be the Nikon D5. …… When rumor turns to fact.
The Sigma Art Primes will be on the same docket.
BTW Just before a few of the uneducated (Minority) m43 brigade start their bagging: I also own a GH4 and an OMD-EM5 + Oly pro lenses and there is no question, … they are also superb cameras that have their place.
Cheers and good shooting, ….. Baz Australia
Started out doing photography at the age of 6 using an uncle's old 1940 kodak brownie box camera. At 15 years of age, I decided to buy my very own 1975 Praktica SLR camera. I now shoot with a Nikon D850. I do unpaid TFP and commercial paid work.