The fast lens, thinking it will win the race, will stop down under a ledge for a nap and not notice how that slow and steady lens inches past for the win...
If you must, use only a 1.4 converter and only when nothing else (like your feet moving closer to the subject) works. Better a softer image than no image at all. And cropping may be a better choice, as Alpix said...
I had one (the original, non-"II") on my Sony A65 for only about a week and had to return it, not because there were problems but because of a bit of a small financial bump.
I loved that lens! I've read that the II is even better. Sweet spot for me was around f/.8-f./11. Fairly heavy, solid build, rather limited range due to it's great speed.
I think your problem might just be a bent pin in the camera, which could explain why the camera doesn't recognize the card. It might be hard to see, but with a flashlight, see if you can spot it.
The stacked hills and morning mist make this shot. Wish I still had a similar shot taken of the mountains south of you, from Walkerville. I really miss home now. I was born in Anaconda.
And put the apostrophe after the "s" if it's a decade-long possessive. I'm a retired editor who always changed it to the "1960s." And who really cares, unless it gets published on paper.