AMOPOFO 77-62mm step down camera filter ring (UV/ND/CPL filter adapter)

The essentials

If you’ve ever bought a filter (UV, ND, CPL) only to find it doesn’t match your camera lens thread size, a step-down ring is usually the simplest fix. This AMOPOFO 77mm to 62mm adapter ring lets you use 62mm filter accessories with 77mm camera lenses—on paper it’s exactly the kind of small part that saves you from buying the wrong size and having it sit unused.

The idea is straightforward: the ring changes the thread size so a filter accessory can screw on. It’s not a lens upgrade, and it won’t “improve image quality” by itself. But if your goal is to mount the right filters and keep your kit flexible, these rings are one of those practical buys that tend to pay off quickly.

What it’s for (and what it can’t do)

This is a metal filter adapter ring, also known as a filter step-down ring. The listing states it’s compatible with 77mm camera lens threads and 62mm filter accessories (including UV, ND and CPL). In other words, it’s designed for the specific mismatch: when your lens is larger-thread (77mm) than the accessory you want to use (62mm).

One limitation to be clear about: it can only help when the thread sizes are a match in the direction you need (77mm lens thread → 62mm accessory). If you need the opposite (62mm lens thread to 77mm accessories), you’d want a different type of ring. Also, it won’t solve situations where a filter mount isn’t threaded the way you expect.

Key takeaways

A few things stand out from the description that matter in everyday use.

First, it’s made from CNC-machined anodised black aluminium. That’s a sensible choice for camera accessories because it’s meant to resist corrosion and abrasion, and the anodised finish is there for a reason.

Second, it’s described as a “much more tight” metal sealing ring, which is the kind of detail you feel when you’re screwing parts on and off repeatedly. If the adapter is too loose, you can end up with alignment issues, too tight can be annoying, but “tight” generally suggests it’s built to stay put.

Third, the product description explains the sizing logic: the “O” symbol example given is essentially saying Ø77 refers to a 77mm lens thread, and the second number is the filter accessory size. If the first number is bigger, it’s a reducing ring—so this particular one is aimed at reducing from 77mm down to 62mm.

So, the value here is less about features and more about compatibility and not guessing.

Where it shines in daily shoots

Imagine you normally shoot with a lens that has a 77mm thread. You buy a CPL meant for 62mm accessories because it’s the size you already have in your bag (or because that’s the size available). Rather than buying a full set of 77mm filters, you can use a 77 to 62mm step-down ring to make the filter fit.

That kind of setup is common for kit owners who don’t want to double up on filter sizes. It also makes it easier to swap between lenses (as long as those lenses really are 77mm threaded) while keeping your filter stash at 62mm.

Tech specs

• Name: AMOPOFO 77 to 62mm Camera Filters Ring/77mm to 62mm step down rings Filter Adapter
• Type: Step down filter ring / filter adapter (lens thread to accessory thread)
• Material: CNC-machined anodised black aluminium (metal)
• Colour: Black
• Compatibility (as stated): Works with 77mm camera lens threads and 62mm filter accessories
• For filters mentioned: UV, ND, CPL
• Size logic (as described): Ø77=lens thread size, second number=filter/accessory size, first number larger = reducing ring

Things to watch before you buy

This is the bit that usually determines whether you end up happy or stuck.

Check your lens thread size carefully. The description says the thread size is typically printed under the lens cap or written somewhere on the lens barrel, and that ordering the wrong size means it won’t fit.

Also verify the direction. This adapter is specifically 77mm to 62mm. If your accessory is 77mm, you won’t need it. If your lens thread isn’t 77mm, it won’t help.

Finally, because this is a mechanical adapter ring, tolerances can vary between setups. It’s described as having a tight metal sealing ring, but if you already use slim/limited-clearance filter systems, you might want to check physical clearance with your exact filters.

Final verdict

Buying this makes sense if you already own (or plan to own) 62mm UV/ND/CPL filters and your camera lenses have 77mm filter threads. It’s a practical way to keep one filter size standard across your kit, without overbuying the larger-thread equivalents.

It might not be the best choice if your lens threads aren’t 77mm, or if your filters are 77mm already—then you’d be adding an unnecessary extra ring. And if you’re expecting the adapter to change optical performance, it won’t, it’s purely about fit and threading.

A solid way to decide: if thread size mismatch is the problem you’re dealing with, this type of 77-62 step-down ring is the right solution. If your sizes already line up, you can probably skip it.

FAQ

How do I confirm my lens thread size?

Look for the thread diameter marked under the lens cap or written on the lens barrel, as the listing suggests.

What does “77 to 62mm” mean on this ring?

It means the ring is intended to let a 62mm threaded filter accessory attach to a 77mm lens thread (a reducing/step-down direction).

Will it work with UV, ND and CPL filters?

The listing says it’s compatible with UV, ND and CPL filter accessories in the relevant 62mm size.

What happens if I order the wrong size?

According to the description, it won’t fit your lens. That’s why checking the printed thread size matters.

Is this better than buying full-size filters for each lens?

In many setups, step-down rings are a way to standardise on one filter size. If your lenses all share the same thread size, it can be a straightforward value-focused approach—just make sure the thread sizes actually match the direction you need.