Name: Hoya Filters Magnetic Instant Action Conversion Ring - For Filters
Brand: Hoya Filters
SKU: HIA-49CVSR
Price: 15.9 USD
Availability: InStock

HOYA magnetic filter conversion ring quick swap adapter system

Hoya Filters Magnetic Instant Action Conversion Ring - For Filters

$15.90

Shipping calculated at checkout.

Ability to suit lenses with a 49mm - 82mm filter size
Magnetically attach and detach filter
Compatible with HOYA and most other brands

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Overview
Video
Specifications
REVIEWS

Overview

HOYA INSTANT ACTION CONVERSION RING and HOYA INSTANT ACTION ADAPTER RING RING (sold separately) allow you to instantly attach and detach common screw type filters onto your lens magnetically.

HOW TO USE

Screw HOYA INSTANT ACTION ADAPTER RING (sold separately) onto the lens.
Screw HOYA INSTANT ACTION CONVERSION RING to your screw type filter.
Attach filter to the lens.

ADVANTAGES

Attaching filter instantly in one move.
No frustration of missing the perfect shot.
No more filter drop accidents.

Notes:

Since HOYA INSTANT ACTION ADAPTER RING and CONVERSION RING system is used together with the filter, the total frame gets thicker. Please mind the risk of vignetting as follows:

APS-C size wide angle lenses at focal length less than 14mm
Full Frame wide angle lenses at focal length less than 20mm

Video

Specifications

Model

HOYA Instant Action Conversion Ring

Series

Instant Action

Type

Accessory

Available Sizes

49mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm, 77mm, 82mm

Frame Material

Aluminum + Magnet

UPC

24066069740	49mm
24066069757	52mm
24066069764	55mm
24066069771	58mm
24066069788	62mm
24066069795	67mm
24066069801	72mm
24066069818	77mm
24066069825	82mm

REVIEWS

Customer Reviews

Overall rating: 4.9 / 5 from 16 reviews.

Product got here fast and was well with the price. Amazing product.

Brandon R. 5/5 Verified October 15, 2026

Hoya Filters Magnetic Instant Action Conversion Ring - For Filters

Very user friendly!

Tiffini W. 5/5 Verified July 15, 2026

Hoya Filters Magnetic Instant Action Conversion Ring - For Filters

Pretty cool

Nigel Z. 5/5 Verified May 28, 2026

Hoya Filters Magnetic Instant Action Conversion Ring - For Filters

An inexpensive and simple way to convert your existing screw-in filters to a magnetic system that is much easier to use. I will likely use my filters much more often now.

James D. 5/5 Verified January 26, 2026

Magnetic Instant Action Conversion Ring - For Filters

The extra depth leads to vignetting on my 21mm Zeiss Loxia with 52mm filter ring so I'll use the adapter rings on a different 52mm filter size lens.

Matthew R. 5/5 Verified January 21, 2026

Magnetic Instant Action Conversion Ring - For Filters

A few mm deeper would have helped with the 10 and 16 stop filters.

Thomas N. 4/5 Verified November 15, 2025

Magnetic Instant Action Conversion Ring - For Filters

I use a Hoya ND filter for video. I don’t use it for still photography. This magnetic ring makes it so much faster and easier to switch between photo and video.

Stephanie B. 5/5 Verified May 23, 2025

Magnetic Instant Action Conversion Ring - For Filters

Excellent

Dave M. 5/5 Verified April 5, 2025

Magnetic Instant Action Conversion Ring - For Filters

Everything was perfect. Smooth transaction! Would order from them again!

Karen H. 5/5 Verified March 10, 2025

Magnetic Instant Action Conversion Ring - For Filters

Works great. Bought along with the adapter ring to convert screw on nd filters into magnetic and it works perfectly. Strong hold and not worried at all of it coming loose. Makes swapping or removing filters extremely easy. No more fiddling with threads.

Ben A. 5/5 Verified January 27, 2025

Magnetic Instant Action Conversion Ring - For Filters

Simple and effective. In other words, perfect!

Kevin B. 5/5 Verified January 15, 2025

Magnetic Instant Action Conversion Ring - For Filters

They work great, awesome for quick changes of filters.

Daren D. 5/5 Verified January 1, 2025

Magnetic Instant Action Conversion Ring - For Filters

Work great for swapping filters, especially when using my Pentax Monochrome and my Pentax K3 that was converted to an all-spectrum camera for shooting IR, mainly.

Daren D. 5/5 Verified December 4, 2024

Magnetic Instant Action Conversion Ring - For Filters

As I stated with my previous purchase of several Magnetic Instant Action Conversion Rings, every time I buy a new filter, I'll invest in a new Conversion Ring, and I did! They make swapping filters so very convenient ... and stable.

Frank L. 5/5 Verified November 12, 2024

Magnetic Instant Action Conversion Ring - For Filters

Works extremely well and is very convenient and efficient. I like it so well that I purchased one for all six of my filters. If I happen to acquire more filters, I assure you that I will purchase an adapter for each. The magnet makes the filters easy to swap, but is strong enough to keep your filter mounted even during rough treatment.

Frank L. 5/5 Verified October 25, 2024

Magnetic Instant Action Conversion Ring - For Filters

The combo of magnetic rings for the lens and the filter works well in converting screw-in filters to magnetic ones. Very useful.

Octavian H. 5/5 Verified March 21, 2024

Magnetic Instant Action Conversion Ring - For Filters

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Hoya Filters Magnetic Instant Action Conversion Ring - For Filters

HOW TO USE

ADVANTAGES

Customer Reviews