Sample of what can be done with an old "big" zoom lens.
Due to high CA, this is pure monochrome from green only.
Capture: 12 x 1/500s x 200iso, 5 darks, Olympus E-PM1 with Vivitar 75-260/4.5 at 260/5.6 on fixed tripod.
Processing: Regim, manual aligning, Gimp. Noticeable unsharp filter.