77 replies to this topic

[Stanislaus]

Here are the spot plots for the 100D:

 

https://takahashi-eu...fc-100/fc-100df

 

And for the Mewlon 210:

 

https://takahashi-eu...n-210-reflector

 

It looks like the 100D is tighter.

I cannot pretend to understand those diagrams you linked to so maybe I need to investigate that a little more.

[lwbehney]

To me the Mewlon 180 and 210 are old school telescopes. The 180 came out in 1990 and the 210 a couple of years later. The early 250s were straight Dall Kirkhams like the 180 and 210. I've found there are a very few targets that my 180 does not have a wide enough field to observe. And I actually prefer to use my Edmund RKEs and Baader Classic orthos rather than my ES 24/68, 14/82 and 8.8/82. The only target I find the off axis coma easily noticed is actually the Moon at the edge of the AFOV. I really like the simple pure reflector design of the two smaller Mewlons. 

I have to say that having owned both a 180c and now a 210, I miss the wider field of the 180c and it gives up little to the Mewlon 210 on galaxies. The 210 might be a tad better on globular clusters. 

[CMS1288]

New-to-me 180.  Just have to perfect collimation and I'm good to go!

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