compatibility

Was watching this video (which is otherwise unremarkable) and the presenter mentioned the PLM lenses use the newer K mount variation which leaves older cameras without aperture control (tbf the K-5 is older than I thought!) Appreciate the K-5 is getting on in years but electronic aperture...

Looking to add an on camera flash plus wireless trigger for my Sony A7. I am already full in with Godox so want either a TT685 or TT350 plus X Pro trigger. Looking on Amazon, all the listings say A7R but not A7 (later A7 versions are shown as compatible). Is there an issue with flash...

My 23" Apple Cinema Display died yesterday. I was using it as an external for a late 2012 13" MacBook Pro running High Sierra. I was wondering what current monitors might be compatible with the laptop. Thanks for any suggestions.