Dip pen and calligraphy pen are very different. The first thing is to dip in ink. The pen has no ink reservoir, so you should stand and dip in ink every time you draw.

Then, how sharp the dip pen is. That's why animators use this item. G and D pen tips draw characters with tough lines. The round nib draws buildings and costumes, and the sharpened nib draws outlines.

Finally, the calligraphy pen is used to write fonts, so the lines drawn will be much thicker than the professional dip pen, which is not suitable for drawing cartoons.

Come on, that's it. Thank you. )