Before anything else, a big shout out of appreciation to Goldspot Pens, and Tom for providing this Opus 88 Koloro fountain pen for review. Goldspot Pens is an online shop for pens, and stationery goods and they are an authorized retailer for diverse brands that we love!

Hand Over That Pen, please!

Katherine: Like many, this pen ain’t my thing aesthetically. I’m not a big fan of the solid matte blue paired with the shinier blue green — the two colors are too close for me (I also can’t stand denim on denim… or blue shirts with blue denim, but that’s besides the point). The demonstrator version looks neat though — but once again… this is all personal preference. 🙂

Pam: The demonstrator version is very striking, however, I am relieved to see different colors for the Koloro. All I see on Instagram is the demonstrator version! The slight translucency of the blue makes the material more interesting than a matte plastic. That said, why not just maintain the same material throughout, like the demonstrator? Lastly, the demonstrator version of the pen is pretty modern, and I wish the clip would reflect that. But then again, I am heavily influenced by the Lamy 2000 clip.

Franz: The Koloro is an interesting looking pen. The acrylic parts of the barrel and cap has a cloudy transparency and allows me to see inside with a bit of light behind. The dark blue ebonite is quite spectacular to look at and hold (and smell). When you look closely, you’ll notice that there are black bits in the ebonite and gives it a sandblasted effect. And finally, the dome shape of the cap’s finial makes me smile for some reason. =)

Pen Details

The Business End

Katherine: The pen takes a #5 Jowo nib, which is nice. The one that came with this pen is smooth and well adjusted out of the box. I love that this takes a #5 though, since it seems like it would be a good candidate for frankenpenning with a vintage flex nib and nibs that fit aren’t hard to find.

Pam: At first, the nib felt really dry and was unpleasant to write with. However, a special feature of the pen is the shut off valve. After we opened up the valve and saturated the feed, it was a much more pleasant writer. (Thank you Katherine & Franz!) The #5 Jowo nib performed consistently and as expected.

Franz: There is a taper to the section that makes the #5 nib size suitable however, a part of me wishes it came with a #6. That’s just me though. As for the writing experience, it was smooth as can be and wrote nicely.

I noticed that the medium nib on the Koloro seems finer than my usual medium Jowo nibs. So I took a loupe and compared it to my other medium #5 Jowo nib. The tipping was slightly smaller/finer than on my Franklin-Christoph Model 45. Of course, this is only from one Opus 88 nib unit but I can’t help but think that since these are Taiwanese pens, could it be that their nib line widths are more towards the Japanese size?

Write It Up

Katherine: The section is maybe a smidge slimmer than perfect, but overall it’s a comfortable pen that’s well balanced in my hand (unposted). I found it comfortable for long writing sessions, but my one gripe is that once the feed runs dry (because I forgot to open the knob and wrote for a while) it takes a while for the ink to make its way down. When loosened, it’s great… when I forget, it can be a little annoying, though the pen does keep writing, just more dry.

Pam: I had no problem with the width of the pen. I found it to be pretty comfortable actually. The threads and the mild step was a bit sharp for me and had some bite in the tender area where thumb meets palm. It wasn’t painful, but it was very noticable. I had to loosen my grip and readjust multiple times during the prolonged writing session.

Franz: I wrote in my journal with the Koloro for a good chunk of time and I did not experience any fatigue. I do prefer writing with the cap posted but it’s perfectly usable even when unposted due to the length of the section. It was my first time to use a Japanese-style eyedropper and as long as the blind cap was unscrewed, the ink flows as it should.

EDC-ness

Katherine: Sorry, three cap turns is just too many. I take a lot of stop and go notes… and this just doesn’t work. Otherwise, the clip feels strong and is maybe a smidge tight, but seems secure and comfortable.

Pam: I couldn’t use this pen at work since it took far too many turns to uncap to be a good EDC at work. It is definitely a 2 hand operation. If that’s not a hinderance for you, the clip did keep the pen secure in my pen case.

Franz: Like the ladies above, uncapping the Koloro took a while and with a work setting of having the need to constantly cap and uncap, definitely was an irritation. As long as one doesn’t have the need for quick deploy, the Koloro is a great pen to use on the daily. I actually liked using this pen while taking notes on a conference call. The build of the pen seems sturdy and can withstand being jostled around in a pocket or a bag. The eyedropper filling system allows the pen to have a little over 2 milliliters of ink for a lot of writing.

The photo below shows the Koloro’s ink chamber and eyedropper’s plunger rod slightly pulled back. The section does have an O-ring which prevents ink from leaking out.

Final Grip-ping Impressions

Katherine: I’m really excited that a modern maker has chosen to build a pen with the Japanese Eyedropper mechanism! This pen doesn’t do it for me aesthetically, but it’s solidly made and writes well — I can’t wait to see what else Opus 88 comes up with!

Pam: The price is fair for what you get in this pen. If you like the aesthetic, want a relatively novel eyedropper with shut off valve, and a reliable nib, you will be hard pressed to find a better alternative. This pen is not for me mostly due to personal preferences, however, as an introduction to Opus 88, it’s a solid opening volley. Bring it on Opus 88!

Franz: One thing I would say that’s a negative (for me) is because the Koloro’s barrel is acrylic, I don’t get the warm ebonite feel while writing. I only have a few ebonite pens but the warm feel is something that I’ve come to expect. That’s just my personal thing though.

The Koloro is a fantastic pen to use as it has a lot going for it (fairly large size, Japanese eyedropper filling system, different color choices) and as Pam mentioned, it’s at a fair price. It is a pen I find myself using a lot for my journal time whenever I do get the time.

Once again, thank you to Goldspot Pens for providing this pen for review. If you’re interested in the Koloro, check out the other options on their site, here.

Pen Comparisons

Pen Photos (click to enlarge)

We received this pen free of charge for the purposes of this review. We were not compensated monetarily for our review. Everything you’ve read here is our own opinions.