I am quite skeptical of claims of "false color" in TEC or recent-vintage AP refractors, just as I am of recent claims of false color in the Tele Vue "NP" refractors, which, by all the accounts I have heard over the years, were designed, and widely acknowledged, to be virtually 100% color-free. I have looked through TEC and AP scopes on numerous occasions, and I was always struck by the perfection of the views -- and I have good vision. Maybe it's the folks who see false color who have vision problems, or maybe they are seeing false color caused by eyepieces or atmospheric refraction or their own eyeglasses. Who knows???
If you want to see what a TEC 140 can do photographically, hang out on the Yahoo TEC Group and see the images as they are posted. The high quality of the images is astonishing.
Well don't be too harsh. Color correction IS an obsession, and I must say on this score I was delighted with my FS128 which I sold to a friend, and also delighted with my GT130, my new arrival.
There are, I think, two major sources of continually infused confusion in these debates, which can come from well meaning people who haven't quite been initiated into all the details.
1. God hates color correction. That is why Jupiter, Mars, Saturn and the moon will show red/blue fringing due to atmospheric refraction, fringing that will show in a Newt or any other apochromatic instrument, and which even shows to the naked eye (on the moon). This red-blue fringing is often interpreted as a telescope artifact and in a world of I-heard-that can be the source of persistent misunderstandings.
2. Eyepieces have can have their own chromatism--either lateral color or even small amounts of on axis color which a neurotic apo owner after an hour or two might actually detect.
To these two main highways (lateral color being the main item to retain from #2) we can add a third, which often comes up with TEC and Sirius--I remember reading it 8 years ago, might even have been Roland chiding someone who was criticizing TEC for having color on Sirius.
It is basically this: if you want to make an apo to withstand the brutality of a visual observation of Sirius for color correction, you are likely going to have to sacrifice some color correction in the photographic ranges for which these scopes are typically optimized. Sorry I can't explain the details but it makes sense to me because everything in astronomy involves tradeoffs, and in fact, everything in engineering design of all types rerpresents tradeoffs between performance, weight, cost, and so on.
There is little doubt that TEC 140s are among the finest astronomical refractors in the world and compete in a very elite world with such names as Astro-Physics, Televue, Zeiss, Pentax, and so on.