QUOTE(agill1970 @ Feb 13 2008, 06:37 PM) [snapback]513320[/snapback]
Diamine Blue-Black - Closer. Nice variants, but it looks a tad greenish to me. Is this the case?
Caran d'Ache Blue Night - Very nice. A darker blue, not a true Blue-Black, but very nice indeed.
Diamine Prussian Blue - Wow... Glad I stumbled over this one. The color is very nice and seems more blue-black than a lot of the ones that actually claim blue-black.
Ultimately I would like cartridges as I can carry a couple for on the go as I am always, on the go. However, it seems I went and purchased a pen that requires cartridges from Pilot only? Not sure if this is the case, please clear up for me if you know the answer. However, I am willing to just fill it up when I can for the right color. I am not always writing on friendly FP paper. A lot of what I write on is printed documents for work, and the faster the ink would dry the better as it is either being handed off to a customer, an employee, faxed, or folder away right after my writing.
My last Pear Tree Pens sampler included Diamine Blue Black. At first I really liked it. It was dark yet definitely not black. But you are right, at least to my eye it ended up too greenish for me. The Caran d'Ache Blue Night is indeed a very nice color. It flowed well and dried fine. As you know from the reviews, the real bottle doesn't hold that much ink, but that hasn't stopped me from using Storm. I love my Diamine Prusssian Blue, but others prefer Diamine Indigo. It's hard to tell from conflicting comments, but it may be a little grayer and perhaps a tad lighter than the Prussian Blue? The Prussian Blue isn't a dark blue, as KCat's additional comments after her review make clear -- unless it sits in the pen awhile. And it does have a grayish tinge to it. I like it. Some of the other inks you mentioned appeal to me, too, but I can't comment because I haven't tried them yet. With Legal Lapis, you do get nib creep and it's free-flowing and, yes, has a touch of green. I like it and use it, but the Diamine is often a bit darker in my pens, certainly bluer, and doesn't creep.
Yes, you are restricted to Pilot Namiki cartridges if you want to keep some carts around for emergencies. I actually like the Pilot Namiki blue black, though.
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Your summary is pretty complete. Most of the available blue black inks are either too green (Waterman, Diamine, Noodlers), too gray (Pelikan, Sheaffer, Parker), too purple (PR Black Magic Blue), too blue (Platinum, Stipula), or are iron gall inks (Montblanc, Lamy).
The only blue blacks that appeal to me are PR Midnight Blue, Sailor, and Dupont. Unfortunately, the PR dries slowly and smears, the Dupont is only sold in France, and the Sailor is expensive and the least attractive of these three colors.
CharlieB mentions PR Midnight Blues, which is dark blue, like Noodler's Midnight Blue. There's the new fast-drying formula out. A recent review said it feathered, though. I have a sample of the PR classic version, thanks to a generous FPNer, and it's very nice, but yes, it's a little slow to dry.