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Takitis! (Cats & Casses Edition)

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#76 Stanislaus

Stanislaus

    Vostok 1

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Posted 19 May 2022 - 01:01 AM

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.



#77 lwbehney

lwbehney

    Mariner 2

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Posted 19 May 2022 - 07:51 AM

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. 


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#78 CMS1288

CMS1288

    Mariner 2

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Posted 19 May 2022 - 10:59 AM

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

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