If you’re using a Canon lens, you can skip this page. You do not need adapter rings.
Our AD-58 adapter threads onto 58 mm lens cap theads, as shown here.
Canon cameras almost always have 58 mm threads.
If you’re using a Nikon or other camera without 58 mm threads, you’ll need a thread adapter as described below.
What thread adapter might you need?
If the filter threads on your camera lens are not 58 mm, you’ll need a step-down or step-up ring.
The “From”-end of the ring should have male threads that match your lens filter threads. This is generally referred to as the “first dimension.”
The “To”-end of the ring should be 58 mm female into which our AD-58 screws. And this, not surprisingly, is considered the “second dimension.”
Q. “How can I determine the diameter of my camera’s lens filter threads?”
A. Some lenses contain are marked with their diameter. For example, the image below indicates 58 mm diameter lens threads:
If your camera does not have a size marking, you will need to research your specific lens. A vendor’s spec sheets often indicate the lens cap/filter thread size.
If your camera’s filter threads are less than 58 mm, you need a step-up ring: link.
If your camera’s filter threads exceed 58 mm, you need a step-down ring: link.
Also see these filter ring sets: link.
Pay particular attention to delivery times, which can vary from size to size. Also, see Adorama link and B&H link.
Questions? Please contact us using our contact form: link or visit your local camera shop and tell them you have a 58 mm filter you want to mount on your camera lens.