GL17-A Aperture Gear for Venus Optics Laowa 17mm f/4 GFX Zero-D service The housing is machined from

The housing is machined from a solid block of aluminum

#22140 N120 Extension Ring 40 II

and if water intrusion is detected

Pop-up flash

Nauticam optical-glass macro ports are finely ground to the highest standard of precision and represent the state of the art in both manufacturing and optical technology

GL17-A Aperture Gear for Venus Optics Laowa 17mm f/4 GFX Zero-D service The housing is machined fromThis item is non returnable, non refundable, non cancellable, and may be subject to extended lead times as it is manufactured on demand. We always do our best to meet trip deadlines so please advise us if you have a trip coming up!