Trying out my new Rotring Isograph technical pen. It's good but a bit overpriced. The wash is from Derwent Graphitone.
This is drawn with the Pilot Hi-tecpoint V7 fitted with Rotring ink. It works well, so far. I've tried India ink in this model before and it destroyed the pen. I like the Pilot more than the Rotring because it's smoother on paper and you can draw with the pen at any angle.