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The Baader Planetarium Morpheus

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#1 BillP

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Posted 20 August 2015 - 10:45 AM

Morpheus, in Greek mythology known as the god of dreams, and now the new Baader Planetarium entry in the field of high-performance wide fields.  In field tests, Morpheus eyepieces proved themselves to be a very sizable step up in both performance and ergonomics compared to the older Hyperion line.

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#2 Mike G.

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Posted 20 August 2015 - 11:31 AM

great review, Bill, thanks for all the hard work!



#3 Starman1

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Posted 20 August 2015 - 02:05 PM

Bill said: "oddly lateral color in the 8" SCT seemed less than in the 10" Dob"

This is because the lateral color is induced by the wider light cone in the dob.  The rays hit the lenses more obliquely and, hence, "prism" more.

If you compared these eyepieces in 5 different focal ratios from f/5 to f/15, you would see a smoothly declining lateral color as the f/ratio became larger.


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#4 Phillip Creed

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Posted 20 August 2015 - 03:19 PM

Bill,

 

:bow: :bow: :bow:

 

Clear Skies,

Phil



#5 BillP

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Posted 20 August 2015 - 03:52 PM

Bill said: "oddly lateral color in the 8" SCT seemed less than in the 10" Dob"

This is because the lateral color is induced by the wider light cone in the dob.  The rays hit the lenses more obliquely and, hence, "prism" more.

If you compared these eyepieces in 5 different focal ratios from f/5 to f/15, you would see a smoothly declining lateral color as the f/ratio became larger.

 

Excellent!  For some reason I had always thought the lateral color was a fixed attribute of an eyepiece.  Makes sense.  Thx!


Edited by BillP, 20 August 2015 - 03:52 PM.


#6 nkoiza

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Posted 20 August 2015 - 05:20 PM

I very much enjoyed reading your excellent review and thank you Bill for addressing my previous query regarding the suitability of the 12.5mm Morpheus without a coma corrector in fast Dobsonians, where it would appear that off-axis performance can be more or less acceptable.

 

Will you be extending your current line up to include one or two of these eyepieces, and if yes, which ones? I am thinking about the 12.5 to fit between my 14 Denk and 10 XW, and possibly adding the 9 despite this potentially rendering the 10 XW redundant.



#7 BGeoghegan

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Posted 20 August 2015 - 06:32 PM

Many thanks to Bill for the in-depth report. I also find the eye stretch needed for 82°+ EPs takes some of the pleasure out of using them. My next EP selection may come down to a Morpheus vs Delos debate.

#8 BillP

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Posted 20 August 2015 - 06:44 PM

Will you be extending your current line up to include one or two of these eyepieces, and if yes, which ones? I am thinking about the 12.5 to fit between my 14 Denk and 10 XW, and possibly adding the 9 despite this potentially rendering the 10 XW redundant.

 

I have not tried the 17.5mm so want to try those.  I am thinking binoviewing.  So a pair of the 14mm or the 17.5s because the bino experience with these was so incredibly "transcendental" :grin:   When I bino with the 14's it's like this huge wide bino-field sits in front of your eyes and is just incredible!  If you need the small spacing between the 14 and 10, then would definitely do the 12.5mm.



#9 Starman1

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Posted 20 August 2015 - 06:50 PM

 

Bill said: "oddly lateral color in the 8" SCT seemed less than in the 10" Dob"

This is because the lateral color is induced by the wider light cone in the dob.  The rays hit the lenses more obliquely and, hence, "prism" more.

If you compared these eyepieces in 5 different focal ratios from f/5 to f/15, you would see a smoothly declining lateral color as the f/ratio became larger.

 

Excellent!  For some reason I had always thought the lateral color was a fixed attribute of an eyepiece.  Makes sense.  Thx!

 

It can be due to constructive/destructive interference when light passes through the anti-reflection coatings at angles they weren't designed to handle.

It can be due to a simply prismatic effect when light passes obliquely through a lens which is wedge-shaped at the edge.

It can be due to different refractive indices of glass elements not interacting well when light doesn't pass through straight.

And it can be due to looking through the lens at the wrong angle, corrected by looking through at a different angle.

I guess all could be considered fixed attributes of the eyepiece, since the issue could be replicated at will.

 

But there are two forms of lateral chromatic aberration: prismatic smear (one color is offset from another) or simple inability to focus the relevant colors simultaneously (one color becomes a fringe to the other, as in normal CA like the purple haze in an achro refractor).  I've seen both in eyepieces.  Prismatic smear may be reduced by looking through the eyepiece at a different angle, while normal CA may not be mitigated even with a slight refocusing of the edge.



#10 Tom_m

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Posted 21 August 2015 - 02:53 AM

Many thanks to Bill for the in-depth report. I also find the eye stretch needed for 82°+ EPs takes some of the pleasure out of using them. My next EP selection may come down to a Morpheus vs Delos debate.

 

I am in the same camp as you, and my next EP selection alredy is Morpheus vs Delos debate. :grin:

 

Really excellent review BillP! I love how you described the engaging views quality, I am totally hooked!


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#11 spongebob@55

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Posted 21 August 2015 - 11:59 AM

Here's another review of the 12.5mm.....

 

http://www.eastmidla...m-76°-eyepiece/

 

Bob



#12 esd726

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Posted 21 August 2015 - 12:26 PM

Great review Bill......like always :waytogo:



#13 Scott in NC

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Posted 21 August 2015 - 05:56 PM

Nicely done, Bill! :waytogo:



#14 mattyfatz

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Posted 21 August 2015 - 11:54 PM

If  Baader really got that "floating" effect down, these will be on my collection soon. I really enjoyed this article. Thanks for putting in so much effort

:waytogo:



#15 Andy Howie

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Posted 22 August 2015 - 05:10 AM

Nice review Bill, as always :smile: . Many thanks for the time & effort put in.

 

Andy.



#16 cwilson

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Posted 22 August 2015 - 07:36 AM

Great review! Very informative as always!



#17 TH1

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Posted 23 August 2015 - 12:41 PM

It's funny how all these eyepieces coming out look like the D21's and D14's I got from Denkmeier years ago from Russ.

But they sure don't perform like the Denk's - unbeatable contrast.

Russ, you're the best.

#18 RichA

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Posted 23 August 2015 - 04:24 PM

Very good, thorough review, thank you.  I just wish eyepieces today weren't going for some kind of weird "look."  Clean designs are more attractive, IMO.  Also, the glow in the dark feature could be enhanced (longevity) if they used strontium aluminate as the active ingredient instead of the old sulfide glow in the dark-based paint. 



#19 john2233

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Posted 07 September 2015 - 06:40 AM

Thanks for the review ! These eyepieces are a very good alternative to televue and pentax here in Europe. I look forward on your review for the 17.5mm !



#20 DennisM

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Posted 08 September 2015 - 12:45 PM

Thank for the review.  Will have to check these out further.



#21 SandyHouTex

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Posted 24 September 2015 - 09:57 AM

Excellent review as always BillP.  I just wish I could read the good ones with out wanting to run out and buy them.  So far I'm still resisting on the Morphei.



#22 BlueMoon

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Posted 09 October 2015 - 07:25 AM

Thank you for an engaging and excellent review! I'm in the "planning stage" in purchasing a binoviewer and your description of the Morpheus 14mm EPs has placed them at the top of my "A": list.



#23 norcaltakguy

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Posted 14 November 2015 - 08:30 AM

Bill, you are a god send to amateur astronomy, insightful reviews, brilliantly explained and above all else, you give astro enthusiast reasons to explore and look at various equipment options...

 

Well done, superb review!!! 

 

Keep looking up...

 

JE



#24 davidpitre

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Posted 15 November 2015 - 08:17 PM

Anyone else get a hold of one on these? I'd like some more opinions.



#25 BinoGuy

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Posted 15 December 2015 - 09:07 PM

Truly an epic & awesome review.  Thank you.




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