That's a bit of an animal! I've got a Sigma 150-500 that must be 7 years old now.
Now I have a confession to make.
Forgive me father, for I have sinned mightily. Well, my mother died recently, and left us some loot. I decided we should each buy something we could not otherwise have afforded, that we wanted. Mrs W bought a fancy sewing machine, I bought a Sony A1. Well, its a logical progression from my 6 year old A7Rii... It is bloody amazing, I can't get over how good the eye autofocus is. However, CF Express type A cards, how bloody much?