The 18 x 24" Knife Blade Gel Frame from Matthews is designed with a flat profile so that gel filters can be easily mounted to it with double-stick tape.
Ask Our Experts800-606-6969
Hello, Log InAccount & Orders
Video Chat with a Lighting Expert - Live
Key Features
- Flat Pancake Design
The 18 x 24" Knife Blade Gel Frame from Matthews is designed with a flat profile so that gel filters can be easily mounted to it with double-stick tape.
In Stock
Protect Your Gear
Add a protection plan from $9.99
See Options
Matthews 549122 Overview
Matthews 549122 Specs
| Dimensions | |
| Weight |
Packaging Info
| Package Weight | |
| Box Dimensions (LxWxH) |
Matthews 549122 Reviews
Super durable, feel heavy duty!
By Mark
Rated 5 out of 5
Date: 2025-10-22
I purchased this to gel my Aputure 600D lights, which isn't very often, but I wanted something large enough in case I needed it for as 1200D or use color gel on a 1200X. I was worried this could be fragile and susceptible to bending in transport, but this thing is built extremely well. It has a solid thickness to it while remaining light weight. This will also work well on C-Stands!
Very useful
By Abobakr
Rated 5 out of 5
Date: 2014-12-29
I bought this to use it with rosco diffusion papers. I was fearing it would be heavy, but I'm glad it is not.. It doesn't feel cheap and have some weight but not heavy for a lightwight stand to hold. It's not large or huge but it's not detachable, which I already knew before i ordered, makes it a bit tough to transport. Overall it is great and a must in my kit.
See any errors on this page?
Are the stated dimensions the inside or outside of
Are the stated dimensions the inside or outside of the frame?
The dimensions of the Matthews Knife Blade Gel Frame (18 x 24") are the measurements of the outside of the frame.
Date published: 2026-09-12
question
Does this come with a stand?
It doesn't. The attachment is a rod of 5/8 diamter, about 3 3/4 free length. If you wish to fit the unit onto a standard tripod with a male adapter, you'll need an adapter with both ends female. It may be better to interpose a pivoting adapter. That way, you can match the angle of the frame to the angle of your light source. There may be different solutions that will work utilising the equipment that you already have. I hope that helps.
Date published: 2020-04-15
question
Matthews Diffusion Frame - 18x24 - Knife Blade How do I mount this? What kind of fitting(s) do I need?
you would need a stand with a Grip Head.. I have a Hollywood Grip Head 2-1/2... i mount the Grip Head to my normal light stand, and then mount the Diffusion Frame to the Grip Head.. It's enough for me.. and for even more flexibility, a c-stand with a grip arm and grip head would be great.
Date published: 2018-08-27