Bronica 72mm Close-Up Lens Filter (CUL1) Review

The Bronica 72mm Close-Up Lens Filter (CUL1) is a simple screw-on diopter designed to let medium format Bronica shooters get closer to their subjects without swapping lenses. It's sold as used stock through KEH at around $30, and availability depends on what's in inventory at any given time. Close-up filters are a budget-friendly way to experiment with macro-style work, particularly for systems where dedicated macro lenses are expensive or hard to find.

For film shooters working with Bronica's SQ, ETR, or GS systems (depending on the lens mount diameter), this filter offers a straightforward path to tabletop, product, or botanical work. Image quality won't rival a true macro lens, especially at the edges, but for occasional close-focus tasks it's a practical addition. Since it's a used item, condition will vary, so check the specific grade before purchase.