8If you want to own only one of the best wide angle lens for landscape and astrophotography for the Z mount? The lens should be wide open with the best quality image. Will you go for a zoom or a prime and what it will be your choice? I don’t own any lens less than 70mm reach and I only want to add one for landscape and astro to my bag. I appreciate your opinion and your experience will definitely help me with my choice. Thank you !