Lumos Brass: Special Edition

The Lumos - A beautiful & infinitely refillable fineliner, writing & brush pen compatible with up to 11 Japanese tips.

Introducing the Lumos Brass: Special Edition, where exceptional British craftsmanship meets iconic design.

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The Story Behind the Design

I’ve always believed that the tools we use should bring us joy and reflect the quality of the work we create. It’s why I made the very first calligraphy pen for my wife Gemma all those years ago! 

It’s an ethos I’ve held close as I’ve embarked on my mission to eliminate single-use pens, which led me to developing The Lumos - an elegant and infinitely refillable alternative to the fineliner. 

The Lumos has been a huge hit and I’ve been humbled by the fantastic feedback. 

That’s what inspired me to design this special edition, precision engineered, Lumos Brass.

About the Lumos Brass 

The first step to making a standout pen is choosing the right material. For me, brass was the winner; it gives the pen a satisfying weight in the hand, and an impeccably shiny and smooth feel.  

I drew inspiration from classic British design from cars to old transistor radios; their heritage and intangible soulful quality influenced the design and the smallest of details. Such as the beautiful finely knurled cap as well as the way in which the pen effortlessly closes with just the right amount of feedback in the hand. 

Meeting these exacting standards requires the ultimate in manufacturing tools and processes. Luckily there’s an expert team based just 20 minutes from my Studio, who use precision lathes that are no stranger to making the finest parts such as watch mechanisms and aerospace components. 

Whether you’re looking for a tool to mirror the beauty of your creative practice, elevate your everyday work, or as a gift for an extra special occasion, I hope you find your perfect pen in the Lumos Brass. 

There are a limited number of this Brass Lumos pen available.

Lumos Mini Brass 

  • The Lumos Mini comes with a 0.3 writing tip as standard. You can find full tip sets here.
  • The Mini weighs 34g, is 95mm in length and is also 10mm in diameter
  • Includes a reusable cotton core reservoir. Spares available here: Lumos reservoirs. 

Lumos Single and Duo Brass: 

  • Come with a complete set of 9 tips: Fineliner: 0.1, 0.2, 0.3, 0.5, 0.8, 1.0 Writing Tips: 0.3, 0.5 Felt-Tip: Chisel, Bullet & Brush
  • If you have a favourite thickness or need some replacements, you can purchase your preferred nib size or type in packs of 3 here: Lumos tips.
  • The Lumos Brass Duo and Single weigh 64g, 160mm in length and are 10mm in diameter. 
  • Includes reusable cotton core reservoir (1 x long for the Single, 2 x short for the Duo). Spares available here: Lumos reservoirs. 


  • A sample bottle of Tom's Studio - Deep Black Ink is included. More colours are available here: Fountain pen ink, as well as waterproof pigment inks.
  • The Lumos is not compatible with calligraphy inks 

Materials & Care Instructions

  • Brass is a solid and dense material with a satisfying weight, if you'd like a lighter writing or drawing experience please try the original Lumos.
  • Brass naturally patinas, giving your pen a unique look. You can restore it to its gleaming best with a quick polish.
A beautiful & infinitely refillable fineliner, writing & brush pen including 9 professional artist's tips.

Fineliner: 0.1 0.2 0.3 0.5 0.8 1.0 Felt-Tip: Chisel, Bullet & Brush


Too many pens and their refills are disposable by design. Similar to printer ink cartridges, pen companies want you to buy into their format so that they can keep selling you replacement pens or refills over and over again.  It's good for their business, but it's bad for the planet and stifles creativity.

"It is brilliant: Beautiful, the perfect weight, a range of nibs, satiny ink. The drawing (almost) does its self."
David Downton - (one of the world’s leading fashion artists)

As a product designer and craftsman who loves using a variety of pens to create illustrations and designs, I had this very problem! Pens would sit in my drawer for years, either patiently waiting for that very specific refill, or I was just loathed to dispose of an otherwise fully functional pen that had run out of ink.

Having designed and handmade calligraphy and fountain pens for creative folks across the world full time for over 6 years, I decided it was time to apply my knowledge to the pen I used most of all and one of the biggest culprits when it came its disposable nature: the fineliner.

Full FAQs can be found here

What ink can I use?

- All nibs will work with all but the most experimental fountain pen inks (think shimmer + iridescent). I've tried a LOT and I'm yet to find one that doesn't work well. I'd encourage you to experiment and find the inks that work best for you!

Pigment Ink for fountain pens can be found here.

Calligraphy Ink has an acrylic binder which will block the Pen

What are the differences between the Duo and the Single Lumos?

The Duo Lumos allows you to have two different pens in one body, allowing you to easily change between nibs and ink colours on either side.

The Single Lumos has one tip and one ink reservoir which is double the Duo's reservoir size.

compatible with 11 amazing interchangeable tips

no more disposable pens!

waterproof pigment ink compatible

refill with any fountain pen ink colour

Customer Reviews

Based on 20 reviews
Elodie B.D.
I Love it

I almost returned it at first because I was afraid it would be too heavy. I have small hands and I was worried the balance wouldn’t be right. But I decided to give it a try and I’m glad I did. I really love my Lumos Brass, especially the quality of the tips. The contact on the paper is the best. And I actually enjoy the weight now. Can’t wait to order my next Tom’s Studio pen. Maybe a fountain pen.

Katja R.
Pretty and practical with a small drawback

The Lumos is a really great item. It is very practical and helps me to be creative. However, the brass version doesn't screw together silently and is sometimes very stiff.

I also thought it was a shame that I was only sent a discount code after placing the order (10 minutes later).
I would have liked to have redeemed it, especially as I am now aware of the small shortcoming.

José E.V.M.
Absolutely stunning

Tom's Studio is the maker you wish everyone used as inspiration. The Lumos tries to be beautiful with the fewer parts possible and the simplest design, it succeeds. It is a reusable option, so reusable that I would say it could be inheritable. In the case is the brass version, it is very beautiful and I can't wait to see it evolve and get a lovely patina

Love the Brass

I bought a Lumos last year and have loved it. Then I saw this one in brass and I absolutely had to have it.
The weight of this feels great in my hand. And it writes like I’m gliding across ice. So smooth. Part of me thinks I should get another one “in case this one dies”. But I don’t need to! All the parts of this are quality and I forsee so many years of wonderful writing with this one. Add in all the different nibs - decades.

Bad machining of brass lid and pen

The lid to my regular lumos mini is great so I thought I’d go for this brass edition. However the lid to my brass addition is as if it’s not for my own pen. it does not smoothly screw into the pen it gets stuck and you can feel the ridges when it tries to screw through the bad threading. I have to find the exact way to put it on or else it gets stuck and I feel like I’m just making it worse. I ended up trying to switch the lids with my lumos mini and you can tell it’s not made for the brass edition. although, it doesn’t scrape as much as the brass lid. Not really sure what to do it’s a shame the threads were badly machined on this edition

British Craft at its Finest

Crafted a mere 20 minutes from the Studio, the Lumos - brass edition is the embodiment of British craft and design. Its immense durability, refillability, and a choice of 11 tips set you up for a lifetime of creativity. I hope you love using yours as much as I enjoyed designing it!

Reduce, Reuse, Refill

It's always seemed crazy to me to have to dispose of an otherwise amazing pen, just because it has run out of ink!  With it's interchangeable ink reservoir the Lumos allows you to easily refill with your ink colour of choice.  You'll also never have to buy another pen again! No more refills, No more waste

The lumos double ended pen spare nib range showing fine liner and brush tips

Tip, Top, Tips

Japan is where the best technical pens are made.  I was never going to be able to design anything that came close to the precision and decades of perfectionism of a Japanese-made nib.  So I designed the Lumos around them, with 9 sizes and types you are sure to find the ones to perfectly suit your style. 

Watch the how to:

Make it Yours

We all have our favourite nib sizes and styles. Customising your Lumos to be your perfect writing, drawing or doodling companion couldn't be easier!


Lumos - Duo

Use any ink colour or combination of the 9 tip styles

Power Couple

As a designer, I am always reaching for at least two pens to highlight or add details in different styles to my work.  Different pen styles offer different functions, whether that's accentuating detail in a drawing, changing between line weights, or just doodling for the fun of it I wanted to create a pen that you could use for a variety of tasks and that you could truly customise to the way you work.