Posts filed under Opus

Opus 88 Minty 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.)

Opus 88 have always kept me interested in what they're making ever since they made it on my radar several years ago. Each pen design they release is unique and always has at least one color combo that I can't resist. Not to mention, their pens hold a ton of ink.

The Minty fountain pen is a full-sized fountain pen with an ink-dropper reservoir for holding a big supply of your favorite ink. I picked this model up in the Light Blue color option, though I'm not sure that's the most accurate name for the color. If the teal model isn't your thing, there's also an orange model, though that one looks more pink to me than orange. Either way, they're both beautiful!

The materials in this pen are what set it apart from other Opus 88 pens I have in my collection. Instead of a solid and semi-translucent body and cap, this model uses a beautiful combination of different resin colors. I love the depth and color variation that these different chunks provide. In my model, the colors vary from light green, teal, and milky white, and the finials and grip section are a fantastic dark gray color that contrast perfectly. I love the thin red band of burgundy between the teal material and the dark gray finials. You have to look closely to see it, but it really is complementary to the other colors in a way that I wouldn't anticipate.

The clip and nib are both a shiny stainless steel material, and they go great with the other cool colors on the pen body. The clip is strong and does its job well, and the nib is fantastic — just as I'd expect. The only branding on the pen is a small Opus 88 lettered on the base of the cap under the clip.

The pen is manufactured and finished to high level of tolerance, which translates to a great feel in the hand — it feels solid and like it will last a long time. The cap threads are smooth and sure, and the stopper on the back of the pen is very tight. Since the pen is an eye dropper, there's also a small o-ring on the grip section to provide a leak-proof seal. And to provide ink flow, the back finial unscrews for long writing sessions, and then closes securely for storage and transport.

The nib is a stainless steel #6 with some minimal decoration. I went for the 1.5mm stub nib, and it is wonderful. It's really wide and flows well, but it manages to keep the line edges crisp. It's buttery smooth and produces some amazing line width variation. It's definitely a good nib for showing off beautiful inks!

Due to the eyedropper filling system, you can pack a whopping 3.5ml of ink into this pen. This is a great option if you need to carry a lot of ink in one pen! And due to the tight seal and shut off valve, you don't have to worry about it leaking.

The Opus 88 Minty is a fantastic pen that packs a lot of value! The $130 price tag is a good deal considering the quality of materials, build, and writing experience it provides. This is a price bracket with a lot of competition, and I think the Minty stands up well against the other options. If you like the look of it and want a pen with a massive ink capacity, you can't go wrong here.

The Minty is pictured here with the Light Blue color option and 1.5mm stub nib. You can also get this pen in Orange material and with an EF, F, M, or B nib. At this point, I'm really happy with my Opus 88 collection, but I'm also excited to see what else they release in the future!

(Goldspot provided this product at a discount to The Pen Addict for review purposes.)


Enjoy reading The Pen Addict? Then consider becoming a member to receive additional weekly content, giveaways, and discounts in The Pen Addict shop. Plus, you support me and the site directly, for which I am very grateful.

Membership starts at just $5/month, with a discounted annual option available. To find out more about membership click here and join us!

Posted on April 12, 2023 and filed under Opus, Fountain Pens, Pen Reviews.

Opus Koloro Fountain Pen Giveaway

Opus Koloro Fountain Pen

I’m lucky to have some of the best readers on the planet, and this week’s giveaway is a prime example of that. The Opus Koloro Fountain Pen is one of the best bang-for-your-buck fountain pens on the market, and this Blue Aqua model with a Medium nib was donated - DONATED! - by a reader who wanted to get it into another Pen Addict’s hand. How cool is that?

Read the rules below, and enter away. And give a big thanks to my awesome friend for sending me this pen!

Posted on June 8, 2021 and filed under Giveaways, Opus.

Opus 88 Koloro Fountain Pen Review

Opus 88 Koloro Fountain Pen Review

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

The Opus 88 Koloro has been around for several years, but I think it's still worth consideration today if you're looking for a great pen with a gigantic ink supply. This eye-dropper filled pen features a pleasantly shaped body with a combination of translucent acrylic and contrasting ebonite. The different materials add a lot of visual interest to the pen, and also makes it feel a bit more unique compared to other pens with similar shapes.

Opus 88 Koloro Fountain Pen

The Koloro isn't a small pen by any means, but it manages to feel smaller in my hand that it looks. It's really comfortable when writing, and I've been very happy with how it feels over longer writing sessions. Just remember to unscrew the back knob a few turns to allow the ink to flow freely to the nib!

While it might seem like a nuisance to remember to open and shut the valve (the knob on the back of the pen) every time you want to use it, this is really convenient if you plan on traveling with the pen or if you know it will get tossed around a lot in a bag. The valve ensure that no additional ink makes it to the nib from the reservoir. Sure, there might be some ink splatter from whatever was left in the nib and feed section, but that's a finite supply. While it's not something many of us are considering lately, this makes air travel convenient as well. With a sealed ink reservoir, you're mostly insured against surprise ink burps that go along with the dramatic change in air pressure accompanied with air travel.

Opus 88 Koloro Fountain Pen Nib

The #5 JoWo nib on the Koloro is fantastic. I've been really happy with every JoWo nib I've used so far, and this one is no exception. The medium nib I chose is a great compromise between a thin line and plenty of ink flow. The nib is smooth and worked perfectly out of the box. The medium nib produces a line that's a little thinner than I'd expect from a medium, but not thin enough to think it was a fine nib. That's my preference anyway, but I'm sure I could adjust the tines just a tad to widen the line a small amount. The nib is fantastic and comes in several sizes — broad, medium, and fine. It's unfortunate that you can't choose from the other options that Opus 88 include on other pens, but this is a good assortment for starting out. Plus, the JoWo nibs are fairly easy to swap out assuming you have some spares on hand.

Opus 88 Koloro Fountain Pen Writing

With any eyedropper pen, the nib can get a little dry in between uses. I usually just need to let the pen rest nib down for a couple minutes for it to work flawlessly again, but this is something to consider with any pen that has a shut off valve between the feed and ink reservoir. It's not a negative — just part of the style that you need to be aware of.

Opus 88 Koloro Fountain Pen Comparison

The cap and clip are really sturdy. The cap is one of my favorite parts of the pen because of the shape and the tiny Opus 88 branding. The clip is really strong and also lines up perfectly with the rest of the design of the pen body. The teal ebonite complements the darker teal acrylic perfectly. With a little light, this pen really pops off your desk. The semi-translucent acrylic also lets you see a bit of the internals on the pen body, which is also really interesting. Plus, it gives you a full-on view of how much ink is left.

Opus 88 Koloro Fountain Pen Eyedropper

I imagine the Koloro might be the obvious first choice for someone picking up an Opus 88 pen. It wasn't my first stop, but I can heartily recommend the Koloro if you're interested in the Opus 88 brand. It's a solid writer, it's dependable, and it looks fantastic. If Blue Aqua isn't your thing, you can also get these in Beige Teal, Yellow Orange, and Rust Red. At just under $100, it's a great deal for what you get.

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


Enjoy reading The Pen Addict? Then consider becoming a member to receive additional weekly content, giveaways, and discounts in The Pen Addict shop. Plus, you support me and the site directly, for which I am very grateful.

Membership starts at just $5/month, with a discounted annual option available. To find out more about membership click here and join us!

Opus 88 Koloro Fountain Pen Written Review
Posted on May 12, 2021 and filed under Opus, Fountain Pens, Pen Reviews.