Laowa 15mm f/2 for Canon RF, fastest ultra-wide with front filter thread for astrophotography and creative work.
The Laowa 15mm f/2 D-Dreamer is a fast ultra-wide prime for Canon RF-mount providing 15mm at the remarkably fast f/2 aperture — one of the fastest ultra-wide lenses available. The combination of ultra-wide coverage and fast aperture excels for astrophotography and creative wide-angle work.
The f/2 at 15mm provides extraordinary light gathering for astrophotography — capturing more starlight per exposure than any f/2.4 or slower alternative. The rectilinear design keeps straight lines straight, and the filter-thread front element accepts standard screw-in filters unlike bulbous alternatives.
Build quality is quality Laowa with metal construction and manual focus operation. The front filter thread is a significant practical advantage over ultra-wide lenses with bulbous front elements that cannot accept standard filters.
The Laowa 15mm f/2 offers the fastest standard-filter-capable ultra-wide for Canon RF on the used market. The f/2 speed for astro and the front filter capability provide unique practical advantages.