Posts filed under Nemosine

Nemosine Fission Classic Blue 0.6mm Fine Stub Fountain Pen: A Review

(Susan M. Pigott is a fountain pen collector, pen and paperholic, photographer, and professor. You can find more from Susan on her blog Scribalishess.)

Nemosine produces a variety of reasonably-priced fountain pens in three series: the Singularity, the Neutrino, and the Fission. The Fission is named after “the process by which a nucleus splits into smaller particles through a nuclear reaction or radioactive decay, releasing large amounts of energy. Nuclear binding energy is the energy required to dismantle a nucleus into its component protons and neutrons” (quoted from the Nemosine site).

The Nemosine Fission comes in four colors: classic blue (the one I’m reviewing), gunmetal, ice, and navy, and you can get them with nibs in EF, F, M, B, and 0.6 stub.

The Fission is an all-metal fountain pen with a stainless steel nib. The body of the pen is coated in lacquer and has what I assume are stainless steel accents. The pen comes with several black ink cartridges or you can use the included converter.

My pen is a beautiful Robin’s egg blue color. The silver accents complement the blue perfectly. The clip is engraved with an “N” and it’s nice and tight.

The body is decorated with two silver rings (one at the bottom of the cap and one at the top of the barrel) and silver threads at the bottom of the barrel that allow you to post the cap by screwing it on.

This is a hefty pen, weighing 43 grams without ink (though ink adds negligable weight). The pen is medium sized: 5.0 inches uncapped, 5.5 inches capped, and a little over 6.5 inches posted. As stated above, to post the cap you actually screw it on, so it posts very securely.

As with all pens with metal grips, the Fission’s grip, while smooth, can become slippery if you’re fingers sweat. I’d prefer having some sort of engraved pattern to help steady my fingers.

The stainless steel fine stub nib is decorated with scrollwork, an “N” for Nemosine, and the size of the nib. It’s a relatively smooth nib and is very hard—no bounce or softness at all.

I found ink flow to be unreliable. The pen would write well for a while, then the ink flow would start to dry up. I had to manually force ink down into the feed by turning the converter. The flow randomly fluctuates between wet and dry.

I’m going to rinse out the pen, floss the nib, and try again. Fortunately, Nemosine has a generous three-year guarantee that allows you to send the pen in for a replacement for any reason. You simply pay $5.00 to cover testing, labor, and return postage. I’ll definitely take them up on that if the writing doesn’t improve.

Regardless, I like the 0.6mm fine stub nib. It offers a little bit of line variation, and when the ink is flowing well, it writes beautifully.

You can purchase the Nemosine Fission from JetPens for $29.99.


  • The Nemosine Fission is a rock solid pen—hefty, well-manufactured, and beautiful.
  • For those who like posting caps, the Fission’s screw-on system is reliable.
  • The steel nib is smooth. I especially like the variety of nib sizes Nemosine offers. The 0.6 stub is a choice many writers will enjoy since it’s not too broad but offers some line variation.
  • The pen comes with a generous three-year guarantee.


  • This is a heavy pen, so writers whose hands cramp when using heavy pens will want to look elsewhere.
  • The metal grip is slippery, especially if you get sweaty fingers like me.
  • The ink flow on my pen was unreliable, ranging from super wet to super dry. I’m hoping this is something that will work itself out with some thorough cleaning and flossing the nib. If not, I’ll make use of Nemosine’s guarantee.

(JetPens provided this product at no charge to The Pen Addict for review purposes.)

Posted on June 30, 2017 and filed under Nemosine, Fountain Pens, Pen Reviews.

Nemosine Singularity Stub Nib Fountain Pen Review

(Sarah Read is an author, editor, yarn artist, and pen/paper/ink addict. You can find more about her at her website and on Twitter.)

I love demonstrator pens, and I love fine stubs, so I was pretty excited to learn about the Nemosine Singularity earlier this year. And while I'm not super thrilled with it, I do think it's a very decent pen.

The pen is made of see-through plastic--this one in a smoky grey-brown color that is really lovely. It also comes in clear, teal/blue, and pink. The plastic seems very sturdy. I may have accidentally field tested this feature while I was taking photos. I can confidently say that it withstands a four-foot drop onto hardwood floors with nary a fuss, apart from a wee spray of ink in the cap. It has a metal cap band with the brand "Nemosine" etched on it. It has a metal clip that is a bit stiff, but functional. It has a very comfortable black plastic grip section.

The pen takes cartridges or a converter, and comes with both. It actually came with six cartridges, which I thought was very generous. The converter has a small plastic bead in it to serve as an agitator to help the ink flow to the feed instead of being stuck up by the piston. The last bit of ink still seemed to get stuck, so I'm not sure it's quite helping.

The nib is steel, and one of the prettiest in the business, I think. It's etched with a lovely butterfly. The Nemosine nibs are easily interchangeable--replacement nibs can be purchased for about $10. The .6mm stub on my pen is a little bit snaggy. I think it needs some smoothing to give me a better writing experience. And for all its snagginess, it isn't as crisp a stub as I'd been hoping for. The horizontal lines are definitely thinner than the vertical lines, but the pen is such a wet writer that the definition almost completely disappears. At times it just looks like I'm writing with a broad nib. It may be one of the wettest writers I've ever used, and even occasionally burps ink. I tried making sure everything was seated and aligned correctly, but I still get the occasional blorp of ink from the base of the feed. I've only used it with the converter, so perhaps using a cartridge will help--I need to do a little more experimenting to see what might be the cause of my very inky fingers.

Because this pen is so wet, it really needs well-coated or heavy paper. It bleeds through cheap copy paper almost like a Sharpie. It even feathers a little on Rhodia. But after playing with it, I feel like this very wet stub might be good for bringing out the sheen in inks. It's a great pen for trying out inks with shimmer, since the nib can be removed for cleaning. The low price-point makes it an ideal guinea pig pen for ink experiments.

If someone had handed me this pen without telling me what it was, I'd have guessed it to be more expensive than it is. I think it's at a price point to be a great beginner fountain pen, especially with all the nib options to play with. In terms of quality and writing experience, I think it's comparable to the TWSBI Eco.

My disappointment with the .6mm stub is the only thing holding me back from really loving this pen. The ink burping I can live with--I just wouldn't use it to write wedding invites or important business letters. To my pen pals, that's just a bonus ink swab. Since the nibs are so easily replaceable, though, I think it's a good opportunity for me to practice my nib tuning skills. I'll beat up the nib a little and fill the pen with some garish, volatile ink, and I think I and the Singularity will get along just fine.

(JetPens provided this product at no charge to The Pen Addict for review purposes.)

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Posted on June 22, 2017 and filed under Nemosine, Fountain Pens, Pen Reviews.

Nemosine Singularity Aqua Demonstrator Fountain Pen Review

(Jeff Abbott is a regular contributor at The Pen Addict. You can find more from Jeff online at Draft Evolution and Twitter.)

The Nemosine Singularity is an entry-level fountain pen from a new (to me, anyway) pen company that has a lot going for it. It's not often that we see newcomers to the entry-level game, so this is always exciting. But, it's also difficult to break into this level of fountain pen due to the excellent options already available.

The Nemosine Singularity is just a hair under $20 on JetPens, and you have a fairly good range of options between color and nib size (including an intriguing 0.6mm stub option). While the "gift box" aspect of this pen is a joke, the rest of the pen holds up well against expectations.

On first unboxing this pen, I had similar thoughts and assumptions as when I've purchased $6 fountain pens on eBay from a Chinese manufacturer. There's no flash or pizzazz in the packaging, and the experience is fairly boring. That's fine as long as the pen lives up to the unbelievable price. In the case of the Singularity, the presentation should be improved upon due to the surprisingly great quality of the pen.

This pen reminds me a lot of the Monteverde Artista. While it looks like that pen is being retired from JetPens, it is a great all-round pen for general writing. The Singularity is cheaper, has more nib options, and performs very closely with the Monteverde. I was impressed when I first tried it out.

At $20, you're up against a couple of the best budget fountain pens out there: the Pilot Metropolitan and Kakuno. After the $30 mark, you're in Kaweco, Lamy, and TWSBI territory, so let's leave them out for now. When you compare the Metropolitan and Singularity, the features are very similar. They both come with converters and cartridges, and they're only $5 apart. When comparing these, it really comes down to your own preference. Do you want a professional pen with classy accents? The Metropolitan is the best choice. Do you like how demonstrators look, or do you prefer plastic-body pens? The Singularity is a better option.

The build quality of the Singularity is better than I expected. While it's lightweight, it doesn't feel cheap or fragile. This pen can deal with some abuse, although it will show scratches. The clip has moderate strength and the threads feel precise and well-made.

Moving on to the grip and nib, it keeps impressing. The grip is a black plastic, and it fits my hand perfectly. This combined with the light weight make it ideal for longer writing sessions. The particular model I have uses the medium nib, and it writes like a dream. It's a bit on the wet side, but that's something I expect and want from a medium nib. It never stutters, skips, or has a hard time starting, and it's as smooth as can be. It's a steel nib, but it has a good amount of flexibility that can provide some minimal variation with the right pressure applied.

I'm not sure where the nibs are sourced, but they do say "Made in Germany" on the bottom. Also, the decoration on the nib is classy and pleasing. It's not a plain nib, but it isn't chintzy either.

The included converter does feel cheaper than the pen, but it's worked great so far. One minor complaint I have about this converter is that it has a small ball inside to keep the ink moving around. Other converters use this same method, and the noise that the ball makes inside the converter when you move the pen around has always bothered me. I'm not sure why it's there when other converters do just fine without it. Like I said, it's a minor niggle.

Overall, I've been really impressed by this budget newcomer. It feels well-built while also remaining light, it writes like a dream, and it costs less than $20 (barely). I can see this being a perfect recommendation for people who want to spend 20 bucks on their first demonstrator. For me, it will be a common tester pen for different inks since the nib performs so well.

The Nemosine Singularity is available in Onyx, Aqua, Azalea, and Demonstrator colors from JetPens. You also have an option of EF, F, M, B, and 0.6mm stub nibs. The stub looks particularly interesting!

(JetPens provided this product at no charge to The Pen Addict for review purposes.)

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Posted on May 10, 2017 and filed under Nemosine, Fountain Pens, Pen Reviews.