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Paterson Changing Bag (24.2 x 27.5")

Paterson Changing Bag (24.2 x 27.5")
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Similar item at a lower price: Vello Large Changing Bag (26 x 28")$29.95
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Paterson PTP125 Overview

The Paterson Changing Bag is an essential piece of equipment for your darkroom. It is one of the most simple items to use and can potentially save you from losing a roll of jammed film stuck inside a camera.

Having a changing bag means a jammed or partly exposed film roll can be safely removed from the camera, shooting can continue, and your film can be loaded into a developing tank without having to find a darkroom.
It has a fail-safe double skin with a double zip closure. The inner lining is specially designed to prevent perspiration during prolonged use.
The Paterson changing bag is small enough to fit in a camera bag, yet large enough to contain a fully-opened camera back or a roll of film that needs to be loaded into a tank.

Paterson PTP125 Specs

24.2 x 27.5" / 64 x 70 cm
Packaging Info
Package Weight
1.15 lb
Box Dimensions (LxWxH)
8.5 x 8.1 x 2.9"

Paterson PTP125 Reviews

Do Not use for loading 4x5 sheet film

By Mark
Rated 2 out of 5
Date: 2023-08-25

I had a hard time deciding how to rate this bag. Quality is good and does the job of keeping light out. Arm holes are tight, like most reviewers complain about. I have thin arms, so it is not too bad. It has a good seal, so moving around in the bag can be difficult since the arm has to flow in slowly to give you room to work. Overall, it is a good bag that does what it should. So here is the CON, and it is a big one! The bag's inner liner sheds a tremendous amount of fibers. I tried using a lint roller, used over 12 sheets, and they got clogged up in a couple of swipes. All my 4x5 film gets coated with these fibers, which must be removed after scanning. It took me a while to figure out where the fibers came from, but it is the bag liner. They should have used nylon or something that doesn't shed! If you are loading film onto reels for developing, it should not be an issue. BEWARE!

Worst changing bag I have ever used

By Steve
Rated 1 out of 5
Date: 2023-06-08

I purchased this because I made the mistake of parting with my original changing bag over 40 years ago. Paterson generally makes good products but this bag is the worst one I have every used in my photographic life. Arm bands make it impossible to use with any comfort and I don't have large arms. Do not buy this bag, go for another brand.

Arm holes are very tight

By Thomas
Rated 3 out of 5
Date: 2023-05-17

As others have said the arm holes are super duper tight on larger arms, which isn't really advertised other than in the reviews. I understand the function, to block out all light, but the construction isn't good enough to deal with larger arms, as it feels like I'm ripping out stitches every time I put even my wrists in it

It works!

By Evan
Rated 5 out of 5
Date: 2023-05-02

Roomier than expected, I can load my 3 reel tank no problem

Works great

By Jared
Rated 5 out of 5
Date: 2023-04-01

Kind of tight on my fat arms but I know no light is getting it. Lots of room for all the tools and film. Does what it needs to.

Simple and durable

By moshen
Rated 5 out of 5
Date: 2023-01-06

Works perfectly when used with my Jobo 1520 tank for 35mm. Simple and durable with no light leaks.


By Robert
Rated 5 out of 5
Date: 2023-08-08

Kept light out. I had plenty of room to finagle 120 film onto the expanded reel, it being my first time developing. 10/10 would recommend

Process film without darkroom

By Eric
Rated 5 out of 5
Date: 2023-07-03

Allows me to process film in my kitchen. First roll of 120 turned out great.

See any errors on this page? Let us know


Can I use this for a 3-reel tank? Is it big ...

Can I use this for a 3-reel tank? Is it big enough?
Asked by: Ahsan
Answered by: Rob
Date published: 2021-01-15

Is the inside of the bag dust free?

Is the inside of the bag dust free?
Asked by: Suzanne
It’s dust free when brand new and still in the packaging. Whether it remains dust free depends on whether the equipment placed inside is dust free and how it’s stored. I think a small amount of dust inside the bag is inevitable but shouldn’t cause any serious issues.
Answered by: Anonymous
Date published: 2020-02-02

What is the weight of this bag?

What is the weight of this bag?
Asked by: Alan
around 1 lb
Answered by: vilson
Date published: 2021-02-18

Can I use this for a 5-reel tank? Is it big ...

Can I use this for a 5-reel tank? Is it big enough?
Asked by: Cristobal
Yes, Paterson Changing Bag (27.5 x 27.5") is large enough to put a Paterson Super System 4 Multi-Reel 5 Developing Tank inside. The changing bag diameter is 28'' x 25''.
Answered by: llinelva
Date published: 2022-06-27


Where was this product made?
Asked by: Anonymous
is it big enough to load 120 film in a tank that holds one real of 120
Answered by: Nicolai A.
Date published: 2018-08-27


can this be used to load 4x5 film?
Asked by: Susan
Yes with room to spare
Answered by: JOHNNY P.
Date published: 2018-08-27


is this fabric or plastic?
Asked by: Anonymous
It is Nylon, it works very well, even with my a bit larger forearms.
Answered by: Paul B.
Date published: 2018-08-27
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