Thanks for this list! I'd seen it elsewhere but wasn't able to find it again easily so it's very handy to have here. These are definitely on the list to investigate, especially for the price. Do you (or anyone) happen to know what FLs they were offered in?
Thanks! Going to add this to the list as well...
Thanks for the info. Based on your comment and some others above, I think I'll pass on the RKE unless one happens to land in my lap
Since the topic of pseudo-masuyamas has come up, does anyone have an opinion about the currently available 32mm wide-field Masuyama? It seems to be in the spirit of a lot of EPs that are listed here, just with a wider field. I know the outside edges aren't well corrected, but at f/9 I don't think that will be too big of an issue. This EP particularly intrigues me because I had previously decided to get a 30mm APM UFF for a wide-field view along with a slightly shorter 'ortho-like' EP to fill the gap between that and my 18mm BCO (hence my inquiry here). HOWEVER, if the 32mm Masuyama behaves like an ortho or one of the aforementioned pseudo-masuyamas, then maybe I can just get the one EP instead. Am I making sense? The cherry on top is that the 32mm Masu is a lot wider than the 30mm APM, and even if the outer field is messier, it still has a wider usable field.
@Thomas_M44, in my wanderings around CN researching the new Masuyamas, I saw you post that you had the whole set and like them very much. Do you still have the same opinion? Have you found something you like better? How do they compare to the Fujiyama you mentioned in this thread?
Thank you everyone for your comments! Definitely helpful, even if they make the decision-making more complicated. In a perfect world my bank account would be infinite and I'd be able to get a full set of everything to compare. But alas, it is not, and the next best thing is the collective knowledge here.
The 32mm, 85-degree Masuyama is a real gem.
Ironically, I have as yet very little time on it, due to the fact most of my (circumstantially limited) viewing time since purchasing the Masuyama set has been focused upon the moon and planets.
With the Masuyamas you get a very vivid on-axis view with sharpness comparable to a good Abbe ortho, but with more lush/rich color presentation. The very outer field has some noticeable aberration at f/7, but this does not unduly effect the overall pleasantness of the view.
With your f/9 scope, the outer field should be markedly better corrected than the view with my f/7. You could take good advantage of the 2-inch Masuyamas.
Personally, I think the 32mm and the 26mm are the real gems in the series, with 20mm and 16mm eye-relief respectively. the 20mm is a bit more modest in eye-relief 12.5mm, and so not quick as comfortable as the 26mm and 32mm.
The 15mm and 10mm 1.25" models have only 10mm and 6mm eye-relief respectively, and so this could be uncomfortable for some users. I simply have yet to put in much viewing time with these.
If I had to do it over again, I might have only purchased the 2-inch 32mm, 26mm and 20mm models, and passed on the 1.25-inch 15mm and 10mm units. I have developed eye-relief comfort issues, and so generally prefer to stay well above 10mm of eye-relief.
I feel very comfortable recommending the 32mm and 26mm to you, given your f/9 scope. I can't imagine you would not enjoy either one (unless perhaps you need to wear glasses while viewing).
If I had to keep one, it would be the 32mm. It's truly something special.
Here's a helpful CN overview by William Paolini of the 32mm Masyuama in comparison to the Pentax 30 XW:
Edited by Thomas_M44, 28 October 2020 - 09:49 PM.