The Professional's Source
866.276.1435 / 212.502.6357
Holiday Closing
We are not accepting orders at this time. Online ordering will resume Monday, May 28th at 9:45PM EDT. Our SuperStore and offices are currently closed and will reopen on Tuesday, May 29th at 9:00AM EDT.
We apologize for any inconvenience and appreciate your patronage.
Raynox RA3721 Adapter Ring (Step-up)
The Raynox RA3721 Adapter Ring allows users to attach a 37mm lens accessory or filter to a camera with a 21mm filter mount size. The adapter ring is made of ABS plastic and is a mere 8mm thick.
Why Shop at B&H
Make your online shopping trip personal with our online Live Chat representatives. You can easily reach an in-house expert while browsing our site for your shopping needs. We have the most highly-trained staff in the industry who are pros in their fields, and their professional expertise will help you get the most from your purchase.
Place your domestic order with us for shipment via any UPS, FedEx Economy, or FedEx Priority shipping methods by 4 PM ET Monday through Thursday or 11 AM ET Friday and your order will be shipped that day. Visit our Shipping Delivery Times page for further details. Delivery times are subject to payment verification.
We appreciate your purchase from us, and we understand that sometimes the products you buy don’t turn out to be the right choice for you. We guarantee your peace of mind with our 30-day return policy. With no standard restocking fee and few restrictions, you’ll enjoy a return process as easy as shopping with us. Please visit our Return Policy page for further details.
We’ve made iPhone and Android mobile apps available for your service and shopping convenience. Use filtered search to find and purchase almost any item we sell and ship worldwide. Download product manuals and guides for many popular items. See high-resolution product images in close-up detail. Manage wishlists and view order history. Visit our Mobile Apps page to download.
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