It`s just too bad that all that extra aperture that a Newt can get you for the same money goes to waste most of the time in most places.
According to Dickinson, Dyer, experts, etc., ALL scopes are limited to 300x or less mag. and 1-3 arc secs. resolution on most nights in most places.
For ex., this means that most of the time in most places, a 5" Apo will show just as much planetary detail, etc., as larger newts including the ones mentioned above, but with better contrast, sharpness, clearity, etc., (much better in a lot of cases.). In other words, a 5" apo will be reaching it`s full potential on even several of these nights, (which helps to provide owners with their money`s worth throughout the yrs. since the scope`s reaching it`s full potential most of the time like it was intended to unlike larger newts), while larger newts won`t including many of the larger ones mentioned above which won`t even come close most of the time in most places.
And I know that on such nights of bad seeing, there`s rare, brief moments of good seeing. But not everyone has the patience, etc., or wants to look and wait for such rare, brief moments which may even occur while one`s resting their eyes, etc. Just like them, I`d much rather be looking at other objects such as dso`s or sketching, etc.
On those quite rare nights of excellent seeing, (we only had one such night around here last yr.), the larger newts will strut their stuff. But I`d much rather be looking at objects with good contrast, sharpness, clearity, etc., with the same amount of planetary detail the vast majority of the time.
Of course, these are just some of my preferences, etc. Yours may vary depending on several different factors.
Btw, I agree completely with ALL the excellent points that Charles brought up.
even if others haven`t gotten them yet.
Here`s another question to add to the one Charles posed several posts back. We all know that a 6" Apo and a good, well-collimated 8" newt will provide around the same planetary performance and the 8" newt probably will show a few more faint fuzzies in a perfect world which we, unfortunately, don`t live in. But with a FULL 2" more of aperture, much greater light-gathering power, much better resolution, etc., etc., etc., why is the 8" newt ONLY tied with the 6" refractor?! With ALL such advantages, the 8" newt should be stomping all over the 6" refractor! But it isn`t. Why do you think that`s so?! I`ll tell you why! It`s what I as well as others have been trying to say throughout this thread. Generally, it`s ALL because of the superior optical design, etc., of refractors in amateur sizes!!!
And I know people will try to bring money back into this discussion despite the fact it`s not even a telescope part and, therefore, irrelevant to ALL the different designs as mentioned already in this thread. But since there`s still some who will disagree with this, (as if money really is a telescope part
), please also keep this in mind then. One can get most of their money back should they decide to sell their Apo. Because of this, often times Apo owners lose less money in the long run than cheap, etc., newt owners!
Hope ALL this Helps.
Clear, STEADY Skies!