These inks are always incredibly well-behaved and come in unique colours that I haven’t seen from other brands (especially the Shake ‘n’ Shimmy collection). I only wish they came in glass bottles, but that’s a minor complaint
Tested with Pilot Capless 'B', Clairefontaine 90 GSM paper.
This is my first Robert Oster ink. Summer Sky is a light blue color that is comparable to, for example, Pilot Kon-Peki or Akkerman Passage Blue. This ink is not particularly dry or wet and has quite a bit of shading.
I have some blue black in my ink collection that are all great inks, but they don’t have the right colour I was lookin for. At the Appelboom shop in Laren I browsed through a binder full of colour examples. I decided to go for a bottle of Robert Oster Midnight Sapphire. Lucky for me they had it in stock.
The ink is now in a pen with a broad nib. It flows well and the pen is writing very smoothly with it. On average, depending on paper it has medium shading.
Some might call it more of a dark blue than a blue black. It does depend on the paper but it’s a blue black on (white) Oxford paper and fountain pen friendly printer paper. In some cheap notebooks the pen writes wetter and the it becomes more of a dark blue.
What I like is when there is decent shading. The dark parts become dark blue and the lighter parts medium blue black.
I have been wanting this color for awhile. Finally pulled the trigger. I do enjoy it when laid on heavy which gives it a wonderful red sheen. I would avoid this on any nib below Medium. I don' t think you would get the same experience. I was using the Galen Leather Everyday Notebook with the original Tomoe River paper.
My blue of blues.
Although I've got quite a large collection of blue inks, this one is my favourite.
An awesome cerulean blue with great shading properties and very well behaved on top. A must-add to any ink collection as far as I'm concerned. :-)
I was looking for a very dark green ink for a long time one that was dark enough that it wouldn't look out of place in a business setting and bright enough that it was not just black with a name reminiscent of some other colour that may have been added in small amounts.
Enter RO "Green at Night" it is exactly the colour I have been looking for a green to petrol blue that goes down noce and dark but when you see it it makes you question the colour. Perfect.
The ink flows well and I would consider it to be a thin "watery" ink. This is not a bad thing at all. Even in one of my high flowing Italian pens this works a treat.
The water resistance is not good and if you are writing something that has a possibility of getting wet it will not hold up - not that many fountain pen inks will so not to dissimilar to most - other than that it is a near perfect ink and I will be adding several more to my collection as well as stocking up on my new signature colour.
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