Benro DR6739 Step Down Ring (67-39mm)

Benro
Product # BNF1003MFR #DR6739
Benro
Product # BNF1003MFR #DR6739
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Benro DR6739 Step Down Ring (67-39mm)
Benro DR6739 Step Down Ring (67-39mm) 0
Benro DR6739 Step Down Ring (67-39mm) 1
Out of Stock
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$15.00

Key Features

  • Step-down ring adapts a 67mm front filter thread to accept 39mm threaded filters and accessories.
  • Ideal for using smaller specialty filters, caps, or adapter accessories on larger-diameter lenses.
  • Precision-threaded metal construction helps provide a secure fit and smooth installation.
  • Compact, lightweight design adds minimal bulk to your lens setup.
  • A practical accessory for photographers building a flexible filter kit across multiple lens sizes.
Out of Stock
Free shipping
$15.00
Have any questions?1-800-631-0300

OVERVIEW

The Benro DR6739 Step Down Ring is a simple but highly useful accessory designed to let you mount 39mm threaded filters or accessories onto a lens with a 67mm front filter thread. By reducing the thread size from 67mm to 39mm, this ring helps photographers make use of smaller existing filters without needing to repurchase duplicates in a larger size.

Compatible With

  • Lenses with a 67mm front filter thread
  • 39mm threaded filters and accessories

What a Step-Down Ring Does

Step-down rings are designed to bridge the size difference between a larger lens filter thread and a smaller filter or accessory. In this case, the DR6739 allows a 67mm lens to accept 39mm accessories. This can be especially helpful when working with specialty filters, close-up accessories, caps, or other threaded add-ons that you already own in a 39mm size.

Why Choose a 67mm to 39mm Adapter

If you have multiple lenses and accessories of different diameters, a step-down ring can help reduce cost and simplify your kit. Instead of buying the same filter in many sizes, you may be able to reuse a smaller filter where appropriate. The Benro DR6739 is a compact solution for photographers who value flexibility and efficient gear management.

Build and Handling

The ring is designed for threaded compatibility and straightforward installation. Its slim, lightweight form makes it easy to keep in a camera bag, pouch, or filter case as part of a broader lens accessory system. A properly machined adapter ring also helps support reliable attachment and removal during regular use.

Important Usage Notes

Because this is a step-down ring, it reduces the effective front diameter of the lens. Depending on the lens focal length and the thickness of the attached filter, mechanical vignetting may occur, especially on wider-angle lenses. It may also limit the use of the original lens hood or front cap arrangement. As with any size-reduction adapter, users should confirm that their intended 39mm accessory will physically clear the front element area of the 67mm lens.

Ideal Applications

This type of adapter is well suited to photographers and videographers who want to standardize parts of their setup, use existing small accessories, or experiment with specialty threaded items across different lenses. It can be useful in travel kits, lightweight mirrorless setups, close-up work, and general accessory management.

Comparison: Step-Down Ring vs. Step-Up Ring

A step-down ring reduces the accessory size accepted by the lens, while a step-up ring allows a lens to use larger filters. Step-down rings can save money when reusing small accessories, but they are more likely to introduce vignetting on some lenses. Step-up rings are often preferred when image coverage is a priority, while step-down rings are most practical when accessory reuse and compactness matter more.

Recommended Accessories

  • 39mm UV, ND, or specialty filters
  • 39mm front lens cap
  • Filter wallet or accessory pouch for storage
  • Lens cleaning cloth and blower for maintaining threads and glass surfaces

Key Specifications

  • Brand: Benro
  • Model: DR6739
  • Manufacturer Number: DR6739
  • Type: Step Down Ring
  • Lens Thread Side: 67mm
  • Accessory Thread Side: 39mm
  • Filter Size Designation: 67-39mm

Who It's For

The Benro DR6739 is a practical choice for photographers who already own 39mm threaded accessories and want to use them on a lens with a 67mm filter thread. It is best suited for users who understand the tradeoffs of stepping down in size and want an affordable, compact adapter for selective applications.
$15.00