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New Masuyama 60mm at Kkohki

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#126 Sasa

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Posted 05 September 2016 - 08:19 AM

wow, this development is blowing my mind!  LOOK at those smooth barrels!!   :crazyeyes:  :crazyeyes:   

 

No one has put out a big eyepiece with smooth barrels in years!  And a 100% Japan-made eyepiece?   Fortunately I have no desire for the 60mm.  Don't think I will be able to escape the other two!

 

 

ATC is using smooth 2" barrels as well. It is the only 2" eyepiece I kept at the end:

 

th_ATC40PEX_00.jpg

 

BTW, I checked ATC web page and I have found out that they are offering new 60mm eyepiece as well (in 2" or M44x1 threaded versions):

 

http://www.atc-astro...x-35-m44x1.html

 

Price is quite similar to Masuyama 60mm 2".

 

I'm not going to try it, although it is tempting. Fortunately, it is too close to my M44x1 ATC 53mm Plossl.



#127 Scott99

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Posted 05 September 2016 - 09:53 AM

 

ATC is using smooth 2" barrels as well. 

 

I know!  I've hit that website about 10 times, so far I've been able to resist buying one.  The ATC look like very nice craftmanship and optics, would love to try some.   They are probably lighter and more traditional 4-element eyepieces, the 2-inch Masuyamas are fairly big & heavy, the 50mm feels like it's twice the mass of my 45mm Clave.  



#128 nico04

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Posted 10 September 2016 - 06:29 PM

I received the 50 and 60mm a few days ago. I own eyepieces from Televue, Pentax as well as Nikon and I can say that the finish of the Masuyama eyepieces is wonderful. I will test them on my CFF300 cassegrain and compare with a Vixen NLV 50 ASAP.

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#129 Chopin

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Posted 10 September 2016 - 10:42 PM

Nice eye candy, nico. 



#130 Scott99

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Posted 12 September 2016 - 03:49 PM

I received the 50 and 60mm a few days ago. I own eyepieces from Televue, Pentax as well as Nikon and I can say that the finish of the Masuyama eyepieces is wonderful. I will test them on my CFF300 cassegrain and compare with a Vixen NLV 50 ASAP.

Nico, with that scope you may be a candidate for the 80mm!  that is an impressive telescope, I need to visit the Cassegrain forum more often:

 

Clear aperture - 300 mm;
Focal ratio - 15; Focal length - 4500 mm;
Central Obstruction - 25%;
Focal ratio - 20; Focal length - 6000 mm;
Central Obstruction - 23%;

 

http://www.cfftelesc...eu/cc300mm.html



#131 nico04

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Posted 13 September 2016 - 05:52 PM

For sure the 80mm would be great with 5000mm of focal length, but my focuser is only 2", so the 80mm will not fit. The Masuyama 60mm will give me an exit pupil of 3.6mm which should be appropriate for deep sky viewing.



#132 Scott99

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Posted 15 September 2016 - 12:05 PM

Nico, those should give you the best low-power views with 2-inch focuser, the 60mm will be nice in that long-focus Cass.  Too bad the full moon is out, I want to use the 50mm more.   It's what I would recommend to someone trying to find a Pentax XW 40mm which has gone extinct.

 

something else that occurred to me is that XW's and Panoptics, Naglers, Ethos, etc. all have lateral color and the Masuyama design, like the Clave and 48mm Brandon, is not supposed to have it.  That's another advantage these 2-inch Masuyamas have over wide-fields.


Edited by Scott99, 15 September 2016 - 12:11 PM.


#133 25585

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Posted 17 September 2019 - 11:49 AM

The range, and particuarly 60mm, are very appealing.

 

From photos posted, the 60mm has a seemingly deeply recessed eye lens. If anyone owns a 60 still, what is its usable eye relief with eye cup folded down please?



#134 39.1N84.5W

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Posted 19 September 2019 - 06:09 AM

Three years ago.


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