Apo v. Achro question

Why does the achro image break down while the apo image remains shape way beyond diffraction limits? Do achro's show any false color on planets, or is the color just washed out compared to apos?

Other than the absence of false color halos, what exactly do you buy when you go from an achro to apo of same aperture??

Clifton it sounds like you're going through the same learning curve I went through regarding Achro vs. APO. Some of the D&G Achros are suppose to be very good but still show the false color. As someone already advised it's the type of glass and price combination that allows you to get a better optics. Even in the higher end Stellarvue achros you'll see a good bit of color (even though the ads and claims might suggest otherwise!).

If you're wanting an APO type view from a scope but don't want to spend $4,000 - $6,000 for a nice OTA then go with something like the Meade 7" Mak LX-200. It'll go head-to-head with a high end 5" or 6" APO refractor. Usually in side by side comparisons the 6" APO refractor that costs $6,000 will win but it's an extremely close call.