Cinestill CS41 Colour Film Developer - 1Ltr Powder Kit

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For those of you who are looking to begin home developing colour films, this is the easiest way to get started! A two-bath C-41 processing kit, shipped in powder form for easy delivery and long-life storage.

Simply mix one packet of developer in warm water to create your first step, and the two bleach/fix packs into another beaker for your second step.

Then load your film onto a reel and developing tank (in a changing bag or darkroom!), and get cracking.

      For Full Instructions

      Please download the attached Cinestill CS41 information sheet - also note that a paper version of these instructions are included in your powder kit so you will never be at a loss for how to process your films.

      You can push/pull, and play with different temperatures to fine-tune the development to your personal style and taste.



      Form: Powder
      Size: 1L
      Capacity: 24 rolls advertised as maximum, but typically 12-18
      Perfect for: Colour home-developing


      Where we ship

      When you buy your camera film from us we can ship it across the UK, Europe, USA, New Zealand, Australia and Canada (more countries planned soon!) So buy your Cinestill CS41 Colour Film Developer - 1Ltr Powder Kit today and dive back into the fun of home developing

      The Analogue WonderLab

      When you’ve shot your roll of film and are looking to get it developed and scanned, then look no further than the Analogue WonderLab!

      We can process your film for you, scan it at the resolution you need, and email back the files quickly and securely.

      We offer FREE tracked shipping to our lab so that you can send us your negatives with total peace of mind. And our lab team are all passionate film shooters themselves, so you know that your film will get the best possible treatment!

      Head to the WonderLab page here to read more details, or add the bundled developing above when you purchase your film.

      Please note that our long-term aim is to offer developing for every film that we sell, but this is a work-in-progress. For full details and FAQs please head here

      How Does the Bundled Developing Work?

      To make your analogue adventures even easier (and cheaper!) we’ve implemented the option to pre-pay for your processing when you buy your film. This means that you choose your developing and scanning options on this page, via the little tick-box above, and add everything to basket for an immediate 10% saving on all processing costs.

      Your film will be dispatched in line with our usual shipping times (full details here) and you will also get an email with instructions on sending the film back to the WonderLab (with tracked shipping - on us!)

      When you have shot the film - whether that takes you a day, month or year - you generate the free tracked postage label by following the simple instructions from the email, and pop it in the post with a note of your original order number. We’ll do the rest!

      So buy the bundle and relax into the shooting process, knowing that you’ll get to see the final results from your photography, without having to reach for your wallet again.

      Happy Shooting!

      We send all parcels via TRACKED service - free in the UK for orders of film over £50.

      This means that when you buy your film from us you will be emailed a tracking link at dispatch, and will be able to follow your parcel’s journey all the way to safe arrival.

      Please note that it is not a signed service so you won’t need to be at home to receive your film, and our letterbox-friendly boxes fit through the vast majority of European letterboxes!

      You will have different shipping options and costs at checkout, depending on how quickly you need your film. Please refer to the Delivery Details page for full information

      Get Inspired

      Visit our Wall of Inspiration to read different film reviews and see images from our talented Analogue Wonderland community.

      Take a look

      Customer Reviews

      Based on 8 reviews
      Joe Horner
      Perfect for: Great All-Rounder, Beginners, Portraits, Landscapes, Street Photography, Pinhole/Long-Exposure, Architecture, Creative/Abstract, Travel, Studio work, Low light/Night
      Sharing with the Film Community: Yes
      Accreditation Handles: Joe Horner
      Really easy colour developing!

      I hadn't done colour dev for about 20 years, but decided to try this to see if they'd made it any easier. They have!

      With most negatives being scanned nowadays, temperature control probably isn't quite as critical as it used to be anyway, but this stuff really doesn't seem to care. Developing cold? Just extend the dev time!

      It's also remarkably economic and stable, unlike the older chemicals I was used to. The images are from the 15th film put through a 1 litre batch, which was mixed about 10 weeks ago and stored in simple poly bottles with the air squeezed out, in a dark-ish corner of the room. And there's no sign of it giving up just yet!

      The 2 bath process is also a LOT easier to manage than the old separate bleach, fix, and stabiliser routine - get a bucket of hot water (a sous vide machine really helps), get the chemicals up to temp, and - in about 15 minutes - your negatives are hanging to dry.

      Easier than finding a Truprint envelope!

      Perfect for: Great All-Rounder
      Quite nice

      Used this for the first time I tried to develop color film at home. Was very relieved when the negatives turned out ok. At first I was afraid that they were underfixed, as they were quite milky, but after they dried, they look fine ;)

      Alex Morrison
      Perfect for: Great All-Rounder, Beginners, Portraits, Landscapes, Street Photography, Pinhole/Long-Exposure, Architecture, Creative/Abstract, Travel, Studio work, Low light/Night
      Easier than B&W

      I've developed quite a lot of blank and white, a little bit of ECN-2, and this kit had been my fits experience of C41. This is the easiest process I've used by a long way! Mixing the chemicals is no worse than any other two part powder kit - just make sure the water is moving when you pour the powder in to it.
      This gives me the confidence to try LF colour. Soon...

      Denholm Bruce
      Perfect for: Great All-Rounder
      Really easy to use

      It was my first time home developing and actually making the chemicals was a bit stress full but I think I was a bit out on temperatures yet the still worked perfectly this is very similar with the developer temperature as if it was a bit to hot I would maybe take away 10 seconds or so and there would never be any real problem with pushing or pulling.

      Perfect for: Great All-Rounder, Beginners, Portraits, Landscapes, Street Photography, Pinhole/Long-Exposure, Architecture, Creative/Abstract, Travel, Studio work, Low light/Night
      Super easy to use

      Dabbled in the idea of developing my own C41 film at home for a while, but was always deterred by how complex it seemed. Took the plunge with this kit and I’m so glad I did. It’s insanely simple to use and genuinely very difficult to get wrong; I’ve even developed a few expired rolls with this, expecting to not get good results from them as I had home developed. But nope. This cinestill kit was awesome even for those. Plus, it’s taught me that home developing is super fun