Ink Review #560: Robert Oster Opal Green


Today’s ink is Robert Oster Opal Green from the 1980’s collection. I purchased my sample of ink from Pen Chalet.


The color:

Opal Green is a medium, pastel green.



In large swabs the ink has some pretty shading and just a tiny bit of pink sheen.


Writing samples:

Let's take a look at how the ink behaves on fountain pen friendly papers: Rhodia, Tomoe River, and Leuchtturm.

Dry time: 30 seconds

Water resistance: Low

Feathering: None

Show through: Medium

Bleeding: None

Other properties: medium shading, a tiny bit of sheen, and no shimmer. I saw some shading in all nib sizes except extra fine and only saw sheen in large swabs on Tomoe River paper.

On Staples 24 lb copy paper there was a lot of feathering and some bleeding as well.

Comparison Swabs:


Opal Green is closest to some vintage greens, Waterman Tropic Green and Sheaffer Skrip Emerald Green. Click here to see the Robert Oster inks together.

Longer Writing:


I used a Conklin Durograph Forest Green with a broad nib on Tomoe River paper. The ink had an average flow.

Overall, it’s a great modern option for those who love vintage green inks. It’s well behaved and has some nice shading.

Disclaimer: I purchased this ink myself, and all photos and opinions are my own. This page does contain affiliate links, but this post is not sponsored in any way.