rings under $20

Top ranking choices for B&H customers who searched for rings under $20

B&H # CAADU085D45 MFR # ADU085-D45

The Cavision Matte Box Donut Adapter Ring has on outer diameter of 85 mm and is designed to work with select Cavision matte boxes. The donut adapter prevents light from leaking around the lens and reflecting off filters in the matte box. The cloth features an adjustable sizing cord that allows you to fit lenses with an outer diameter of approximately 50 to 85 mm without having to swap out donuts.

The aluminum ring of the donut adapter fits into the back of the matte box, and the cloth fits around the lens. The adjustable sizing cord allows you to snug the cloth around the lens. The cloth also extends up to 45 mm away from the matte box, which makes this donut usable with lenses that have a front that moves forward and back.
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"I like it....Great Donut...I love that I can use various size lenses with my matte box and not have to worry about having a bag of seperate rings....Great Little Ring to block stray light for the 3x3 Cavision Mattbox."

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Top Highlights

  • Fits Lenses with Max Diameter of 85 mm
  • Light Blocking Artificial Leather Cloth
  • Useful for External Focus Lenses
  • Adjustable Sizing Cord
  • Fits Select Cavision Matte Boxes
  • Aluminum and Cloth Construction

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Expected availability: 7-14 business days
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This item is noncancelable and nonreturnable.

You Pay: $20.00

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B&H # CASDR8272 MFR # ART82-72

This Step-Down Ring from Cavision permits the use of 72mm threaded filters on a 82mm threaded lens.
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  • Use 72mm Filters on 82mm Lens

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B&H # CASDR7258 MFR # ART72-58

This Step-Down Ring from Cavision permits the use of 58mm threaded filters on a 72mm threaded lens.
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"Accurate, well made."

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  • Use 58mm Filters on 72mm Lens

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Expected availability: 7-14 business days
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This item is noncancelable and nonreturnable.

You Pay: $20.00

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The Cavision 105mm to 95mm Step-Down Threaded Adapter Ring is designed for Wide Angle Attachments. It has an inside thread diameter of 95mm and an outside thread diameter of 105mm.
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  • Anodized Aluminum
  • Lightweight

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The Cavision 95mm to 82mm Step-Down Threaded Adapter Ring is designed for Wide Angle Attachments. It has an inside thread diameter of 82mm and an outside thread diameter of 95mm.
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  • Anodized Aluminum
  • Lightweight

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B&H # NIBEZELS40MM MFR # BEZELS (40MM)

The 40mm Crenulated Bezel Ring from Nitecore replaces the smooth stock bezel ring on compatible Nitecore flashlights. To install, unscrew the smooth ring and screw the crenulated one on. It requires no permanent modifications to the flashlight.
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  • For Select Nitecore Flashlights
  • Converts Stock Bezels to Crenulated
  • Stainless Steel Construction

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Expected availability: 7-10 business days
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Use the Alpine Astronomical Baader Hyperion SP54/SP54 Extension Ring to add up to 11mm of optical length to your eyepiece for increased back focus during astrophotography. Consisting of three components, you get three extension rings that can be used individually to achieve the result you want, plus a cap for the exposed male M54 threads. The cap can be removed and the treads used to install the SP54/M28 or SP54/M37 Digital T-Rings (DT-Rings) for astrophotography with video cameras. This adapter is required to use the DT-rings with Hyperion eyepieces.
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  • Use to Extend the Hyperion M54 Thread
  • Adds 11mm of Optical Length
  • Required to Attach M28/M37 DT-Rings

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Expected availability: 7-14 business days
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B&H # CAARP100SBEX MFR # ARP100-SBEX1

The Cavision ARP100-SBEX1 can be used to adapt the MB4510H2-BFI matte box so that it will fit the Sony EX1 camera lens. The LCD screen on the EX1 camera must be flipped out when using this adapter ring.
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Expected availability: 7-14 business days
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This item is noncancelable and nonreturnable.

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B&H # CASDR6258 MFR # ART62-58

This Step-Down Ring from Cavision permits the use of 58mm threaded filters on a 62mm threaded lens.
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  • Use 58mm Filters on 62mm Lens

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Expected availability: 2-4 weeks
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The Cavision 72mm to 62mm Step-Down Threaded Adapter Ring is designed for Wide Angle Attachments. It has an inside thread diameter of 62mm and an outside thread diameter of 72mm.
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  • Anodized Aluminum
  • Lightweight

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Expected availability: 7-14 business days
You can order this item today and pick it up at the B&H NYC Superstore during regular business hours.
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This item is noncancelable and nonreturnable.

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This 77mm P Series Filter Holder Adapter ring from Cokin screws onto the lens' front threads of the same diameter and enables the P Series Adapter Ring to attach to the P series Filter Holder. Once the adapter and holder are attached to the lens filters can be slid into the holder and be used accordingly.

The adapter ring is made from aluminum, which has been anodized for durability.

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"Love it!...Great set!...I am very glad that I waited for this 77mm adaptor to be in stock....B&H shipped the product immediately and it arrived in just a few days, well protected and in perfect shape."

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  • Enables Use of Cokin P Filter Holder
  • Anodized Aluminum

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This 67mm P Series Filter Holder Adapter ring from Cokin screws onto the lens' front threads of the same diameter and enables the P Series Adapter Ring to attach to the P series Filter Holder. Once the adapter and holder are attached to the lens filters can be slid into the holder and be used accordingly.

The adapter ring is made from aluminum, which has been anodized for durability.

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"Great ring...it fits well...This ring worked great....Similar to other adapter rings it allows me to switch filters to different lenses"

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  • Enables Use of Cokin P Filter Holder
  • Anodized Aluminum

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Bundling everything you need to begin working with Cokin P-sized rectangular filters, this P-Series Filter Holder and Adapter Ring Kit includes the filter holder itself as well as an adapter ring to attach the holder to lenses with a 67mm filter thread diameter.
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"Great buy...Works fine...I rated as 4 stars because of the lack of a 46mm adapter ring to accommodate my Olympus 17mm f/1.8 lens....I'ven't used those products, so I don't know what benefits they offer other than how the Lee holder lets you configure the slots precisely to your needs."

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  • Filter Holder for P-Sized Filters
  • Adapter Ring for 67mm Filter Thread

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This 72mm P Series Filter Holder Adapter ring from Cokin screws onto the lens' front threads of the same diameter and enables the P Series Adapter Ring to attach to the P series Filter Holder. Once the adapter and holder are attached to the lens filters can be slid into the holder and be used accordingly.

The adapter ring is made from aluminum, which has been anodized for durability.

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"Works Great...Perfect fit...I am very glad that I waited for this 72mm adaptor to be in stock....I like the Cokin System versus circular neutral density gradient filters since you can control the up and down movement of the filter to coincide with the rule of thirds or where you want to place the hozizen in your pictures."

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  • Enables Use of Cokin P Filter Holder
  • Anodized Aluminum

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You Pay: $19.99

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This 55mm P Series Filter Holder Adapter ring from Cokin screws onto the lens' front threads of the same diameter and enables the P Series Adapter Ring to attach to the P series Filter Holder. Once the adapter and holder are attached to the lens filters can be slid into the holder and be used accordingly.

The adapter ring is made from aluminum, which has been anodized for durability.

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"Works well....High quality...The Cokin adapter rings are high quality, metal rings with finely milled threads....I think the Cokin filter solution is neat and effective for those times when you want to bring sky/clouds down by three stopsthis ring is used with the Cokin P system, which offers a range of grad and coloured filters."

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  • Enables Use of Cokin P Filter Holder
  • Anodized Aluminum

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You Pay: $19.99

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The Leupold STD mounting system is a simple, yet secure mounting solution for attaching a riflescope to the receiver of your favorite firearm. STD rings and bases are extremely dependable, and they can be combined in a variety of configurations to suit your shooting needs.

STD Rings are made of CNC machined steel with two Torx head cap screws. The front ring has a machined dovetail that fits directly into the corresponding opening of a STD rail, while the rear ring is machined to lock in securely to the STD rail's windage screws. This system is easy to install, and provides a repeatable mounting solution that can be adapted to nearly any firearm.

This pair of high STD rings place the centerline of the scope 0.90" above the top of the mounting base.

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  • Fits 1.0" Tube
  • High - 0.90" Mounting Height
  • Made in the USA

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Expected availability: 3-5 weeks
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You Pay: $19.99

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