What is modern flex nib that can write "hairlines" out of box?

Question

What is modern flex nib(fountain pen) that can write "hairlines" out of box, without modify the nib?

"hairlines" mean lines around 0.2mm

(I doesn't be 100% flex, can be semi-flex etc..)

In below video is example of Mag 500 that can write around 0.15mm:

(i set video at specific time so don't need to search, just open..)

VIDEO

But I don't know is it tuned nib or original?

Posted Sep 4, 2026, 10:59 AM UTC · locked

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