Spencer LaVere Smith on Nostr: You’re correct. Most designers still strive for broad achromacity in the visible. ...

You’re correct. Most designers still strive for broad achromacity in the visible. They’re good objectives, but like you said, there is room for improvement for multiphoton. I tried the Leica and Olympus out a while back. They were okay.

I prefer the Cousa objective and the Diesel2p system’s objective (both have correction collars), but I’m biased of course. https://pacificoptica.com We do optimize for 2p and 3p performance. It makes a big difference.