[Kunama]

With ref to the pic posted in #24, I am getting a purple tinge on my screen on the left and some greenish hues in the highlights.
My screen has been calibrated for my son's graphics/photography work.

I think the effect is going to be there with any achromat. Personally I did find that the Istar 6"F10 I had was better than other achros I have used but that may have been due to the F10 ratio. My 135year old 3" F15 is the least colourful achro I have used. I did not really understand how much extraneous colour the achro showed until I put it side by side with the TSA120, the difference could not be missed on the moon, Jupiter, Saturn or brighter stars. But if I had not come by the Tak at such a great price at the right time I would have gladly kept the Istar.

But seriously these discussions of Achro v Apo v Mirror happen all too often and cause so much disharmony. Such a shame !