In addition to Amazon, AstrHori lenses (aka RockStar) are now also available for sale at B&H Photo (for international shipping check their official website). Here are some of their latest releases:
New Venus Optics Laowa 0.7x Focal Reducer for 24mm f/14 2X Macro Probe announced
AstrHori 18mm f/8 APS-C periscope probe macro lens officially announced
AstrHori 12mm f/2.8 fisheye and 18mm f/8 shift full-frame lenses announced
Coming soon: Astrhori 105mm f/2.8 medium format tilt-shift macro lens
First picture of the upcoming AstrHori 75mm f/4 medium format lens for Fuji GFX
First picture of the upcoming AstrHori 75mm f/4 medium format lens for Fuji GFX
AstrHori and Viltrox have new teasers for upcoming announcements