Re: Roland or anyone else question about planetary eyepiece


Feb 14 12:17 PM

 


----------------------------

#38917 Feb 14 12:17 PM

I have a AP 155 and was on the waiting list for an AP planetary eyepiece. Since these do not

appear to be coming available any time soon, what eyepiece would you recomend for

planetary observation. The only one I can find that appears to be easily available is the

Pentax 5mm.



Thanks for any suggestions.



RCH



----------------------------

#38918 Feb 14 2:39 PM

I like the Nagler 3-6 zoom. Seeing is variable at my location - the

convenience of a parfocal zoom eyepiece works well for me.



Alan



On Feb 14, 2008, at 3:17 PM, dogonenuts1 wrote:



> I have a AP 155 and was on the waiting list for an AP planetary

> eyepiece. Since these do not

> appear to be coming available any time soon, what eyepiece would you

> recomend for

> planetary observation. The only one I can find that appears to be

> easily available is the

> Pentax 5mm.

>

> Thanks for any suggestions.

>

> RCH

>







[Non-text portions of this message have been removed]



----------------------------

#38919 Feb 14 4:31 PM

Yuri of TEC has a neat pdf in the TEC yahoo group in which he compares

a bunch of eyepieces. Interesting read.



Philip

--- In ap-ug@yahoogroups.com, "dogonenuts1" dogonenuts1@...> wrote:

>

> I have a AP 155 and was on the waiting list for an AP planetary

eyepiece.



----------------------------

#38921 Feb 14 5:37 PM

Baader is a highly respected and innovative company

that offers what they claim to be replacements for the

legendary but no longer available Zeiss Abbe

Orthoscopics. I have their 12mm version and am very

happy with it.



Check them out at:



www.alpineastro.com/Eyepieces_Accessories/Eyepieces_Accessories.htm#Spectrograph



John





--- Alan Friedman alan@...> wrote:

> I like the Nagler 3-6 zoom. Seeing is variable at my

> location - the

> convenience of a parfocal zoom eyepiece works well

> for me.

>

> Alan

>

>

> On Feb 14, 2008, at 3:17 PM, dogonenuts1 wrote:

>

> > I have a AP 155 and was on the waiting list for an

> AP planetary

> > eyepiece. Since these do not

> > appear to be coming available any time soon, what

> eyepiece would you

> > recomend for

> > planetary observation. The only one I can find

> that appears to be

> > easily available is the

> > Pentax 5mm.

> >

> > Thanks for any suggestions.

> >

> > RCH

> >

>

>

>

> [Non-text portions of this message have been

> removed]

>

>







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----------------------------

#38926 Feb 15 4:33 AM

I would recommend that you look for Pentax Orthoscopics, no longer

available, they do show up occasionally on Asstromart, the 7mm shows

up most frequently, to my eyes these are about equal to Zeiss Orthos.

My nest choice would be Tak LE's, I use 7.5mm LE's with binoviewer as

my main planetary eyepiece with my AP155EDT, not as neutral in color

as Pentax or Zeiss, LE's are a bit on the warm side but are exremely

sharp and comfortable to use.



Vahe



----------------------------

#38927 Feb 15 3:27 AM

I've done quite a bit of comparing with the UO orthos, AP SPLs, Pentax

Orthos, RKEs and TV Plossls.



Wide field or not, you really can't beat the TV Plossls. You'll note

that I haven't tried the Zeiss orthos or TMB Monos, but the TV Plossls

are sharper and have better transmission than the RKEs or UO orthos, and

less ghosting than the RKEs. I can't tell the difference between the AP

SPLs, Pentax orthos and TV Plossls with the following exceptions:



1) The AP SPLs and Pentax orthos will leave a big hole in your wallet,

*if* you can find them.



2) The AP SPLs have usable eye-relief (for me) down to the 10mm, while

the TV Plossls and Pentax orthos only go down to 15mm and 18mm,

respectively, after which they get uncomfortably tight and need the

eyelash oil cleaned off too often.



Oh, one other thing: 4 nights out of 5 I can't tell the difference

between any of these. In my estimation you need at least Pickering 7 to

start to tell them apart, and Pickering 8 or better makes it easier.



-- Jeff.



PS: I used to prefer the RKEs on most nights because they didn't fog as

readily, but I finally figured out that the TV Plossls don't either if

you fold the eye-cups down. It's a bit harder to hold you head steady

without a tactile reference point, but they're not too particular to

exip pupil placement.







---------------



From: ap-ug@yahoogroups.com [mailto:ap-ug@yahoogroups.com] On

Behalf Of Scott

Sent: Friday, February 15, 2008 2:29 AM

To: ap-ug@yahoogroups.com

Subject: [ap-ug] Re: Roland or anyone else question about

planetary eyepiece







--- In ap-ug@yahoogroups.com mailto:ap-ug%40yahoogroups.com> ,

john nassr jnassr2000@...> wrote: .>

> Baader is a highly respected and innovative company

> that offers what they claim to be replacements for the

> legendary but no longer available Zeiss Abbe

> Orthoscopics. I have their 12mm version and am very

> happy with it.

>

> Check them out at:

>

> www.alpineastro.com/Eyepieces_Accessories/

www.alpineastro.com/Eyepieces_Accessories/>

Eyepieces_Accessories.htm#Spectrograph .>

> John

>

>



.I was going to recommend these also, don't be fooled by the

relatively low price, they are

excellent. I believe the University Optics HD orthos are

identical, except that the Baaders

don't have a safety groove in the barrel.



To exceed the contrast of these Baader orthos, you'll have to

spend a lot more money for a

very minscule improvement in contrast. If you like a little

wider FOV, I'd recommend TV

Plossls or Tak LEs. The Tak 5mm Le and 7.5mm LE are nice because

they have better eye

relief than an ortho or plossl, wider field, and still only 5

glass elements (4 for orthos &

plossls).



-Scott















[Non-text portions of this message have been removed]







----------------------------

#38928 Feb 15 6:38 AM

John,



As I understand it, the new Baader "Genuine Orthos" are now made in China

and some users have reported variations in quality between said identical

sets. The low price speaks volumes! That said, if you've got good EPs, well,

you should be perfectly satisfied as they are still "orthos" and I think they

still use Baader coatings which is a HUGE plus ;-). IMO, it is the coatings

that made the difference between Zeiss Abbe orthos and say, University Optics

Abbe Orthos. I have to say too, that the Japanese made UO Abbes are very

good EPs and should also be considered as an alternative to the collectable's,

but don't go any lower than 6mm as eye relief becomes offensive in (my)

opinion ;-)



Happy hunting!



Mark







**************The year's hottest artists on the red carpet at the Grammy

Awards. Go to AOL Music.

(music.aol.com/grammys?NCID=aolcmp00300000002565)





[Non-text portions of this message have been removed]



----------------------------

#38929 Feb 15 6:52 AM

I have a full set of the University Optic Ortho's and think they would be very hard to beat by any other type available. Also have a complete set of vintage TV Plossls and they too are very hard to beat. I like them both.



Wally



pandrolmb@... wrote:

John,



As I understand it, the new Baader "Genuine Orthos" are now made in China

and some users have reported variations in quality between said identical

sets. The low price speaks volumes! That said, if you've got good EPs, well,

you should be perfectly satisfied as they are still "orthos" and I think they

still use Baader coatings which is a HUGE plus ;-). IMO, it is the coatings

that made the difference between Zeiss Abbe orthos and say, University Optics

Abbe Orthos. I have to say too, that the Japanese made UO Abbes are very

good EPs and should also be considered as an alternative to the collectable's,

but don't go any lower than 6mm as eye relief becomes offensive in (my)

opinion ;-)



Happy hunting!



Mark



**************The year's hottest artists on the red carpet at the Grammy

Awards. Go to AOL Music.

(music.aol.com/grammys?NCID=aolcmp00300000002565)



[Non-text portions of this message have been removed]













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----------------------------

#38938 Feb 15 11:38 AM

Morgan raises a good point!



Zeiss, and Pentax BOTH flooded the market 10-20 years ago with very good

.965 orthos, and they too can be found as exceptional values on the used market

(A-mart ;-). Prior to acquisition of dual ZAO set, I used a pair of CZJ

(Carl Zeiss Jena) 10mm .965 orthos in my Mk 5 binoviewer and the combination

results in many oohs and aahs by almost anyone who looked through them. The 8"

APO didn't hurt, but the EPs were not the weakest link either ;-). To this

day I regret letting that pair go :-(. Also, Pentax SMC orthos have been

compared favorably to ZAOs by MANY experienced observers and may be the best value

out there on the used ortho market. 1.25"-.965" adapters can be purchased

from Orion for under $15 each too :-)



STEADY skies!



Mark











**************The year's hottest artists on the red carpet at the Grammy

Awards. Go to AOL Music.

(music.aol.com/grammys?NCID=aolcmp00300000002565)





[Non-text portions of this message have been removed]



----------------------------

#38939 Feb 15 12:44 PM

--- In ap-ug@yahoogroups.com, "dogonenuts1" dogonenuts1@...> wrote: >

> I have a AP 155 and was on the waiting list for an AP planetary

eyepiece. Since these do not > appear to be coming available any time soon, what eyepiece would

you recomend for > planetary observation. The only one I can find that appears to be

easily available is the > Pentax 5mm.

>

> Thanks for any suggestions.

>

> RCH

>

INTES 6mm, 9mm & 12mm Monocentrics are superb. They do have issues

though, a smaller FoV than the TMB monos (26 vice 28 degrees) and a

prominent ghost on bright objects. But if you get the planet

centered in the FoV and have a nice tracking mount, they perform

better than my Zeiss 1.25" Abbes. Contrast is remarkable.



Tom Mack



Tom



----------------------------

#38940 Feb 15 12:49 PM

INTES 6mm, 9mm & 12mm Monocentrics are superb.



Oooo I want a pair of 12's Tom, where do I get them?





[Non-text portions of this message have been removed]



----------------------------

#38943 Feb 15 1:53 PM

--- In ap-ug@yahoogroups.com, "Mike C" mike@...> wrote: >

> > INTES 6mm, 9mm & 12mm Monocentrics are superb.

>

> Oooo I want a pair of 12's Tom, where do I get them?

>

>

> [Non-text portions of this message have been removed]

>

Hi Mike,

I bought mine from Kasai Trading in Japan. They are about $100 each

including shipping. Here is the link: www.kasai-

trading.jp/st-Monocentric.htm



Again, these eyepieces are not for everyone. In my AP130EDFS at F/6

the object needs to be exactly centered for them to perform. In my

F/12 Mewlon 300 they are more forgiving. Talking about looking

through a soda straw though and you do sacrifice edge performance

for contrast but the field stop just about disappears in these

eyepieces the lack of scatter is that good.

Also, they are very easy to clean. Remove the retaining ring with

your finger, remove and clean the cemented triplet, and then put it

back. Since they are monos it does not matter which way they are

oriented.



Tom Mack







----------------------------

#38953 Feb 16 11:00 AM

I really like my Naglers 4.8 and 7 mm. They work great with the EDF 130. I prefer the

Naglers to my Zeiss Ortho 6mm and Abbe 4mm for Jupiter and Saturn. And do not forget

about the Brandons, they are superb.



Clear skies,



Erik

--- In ap-ug@yahoogroups.com, "dogonenuts1" dogonenuts1@...> wrote:

>

> I have a AP 155 and was on the waiting list for an AP planetary eyepiece. Since these do

not

> appear to be coming available any time soon, what eyepiece would you recomend for

> planetary observation. The only one I can find that appears to be easily available is the

> Pentax 5mm.

>

> Thanks for any suggestions.

>

> RCH

>



----------------------------

#38957 Feb 16 2:10 PM

I used Brandons for years, then made a switch to Radians and find they are

superior to the Brandons for planetary work.



Best regards.

Gordon Dayton



On Feb 16, 2008 1:14 PM, Jay Reynolds Freeman Jay_Reynolds_Freeman@...>

wrote:

> I use Brandons at f/8, they are fine there.

>

> -- Jay Reynolds Freeman

> ---------------------

> Jay_Reynolds_Freeman@... Jay_Reynolds_Freeman%40mac.com>

> web.mac.com/jay_reynolds_freeman (personal web site)

>

>

> On Feb 16, 2008, at 12:52 PM, mrgrytt wrote:

>

> --- In ap-ug@yahoogroups.com ap-ug%40yahoogroups.com>, "Erik Bakker"

> erikbakker@...> wrote:

> >

> > And do not forget about the Brandons, they are superb.

> >

> > Clear skies,

> >

> > Erik

>

> I certainly agree with that. Of course they are at their best

> with scopes that don't have crazy fast f/ratios, as are most of the

> simple designs.

>

> Harvey

>

> To UNSUBSCRIBE, or for general information on the ap-ug list

> see groups.yahoo.com/group/ap-ug

> Yahoo! Groups Links

>

>

>





[Non-text portions of this message have been removed]



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#38958 Feb 16 2:32 PM

I used Brandons for years, then made a switch to Radians and

> find they are superior to the Brandons for planetary work.



I used Radians for 2 or 3 years, and then did a head to head comparison one

night with Radians versus monocentrics. All my Radians went for sale the

next week! This was no subtle difference for planetary.



Mike







[Non-text portions of this message have been removed]



----------------------------

#38962 Feb 16 2:40 PM

--- In ap-ug@yahoogroups.com, "Mike C" mike@...> wrote: >

> > I used Brandons for years, then made a switch to Radians and

> > find they are superior to the Brandons for planetary work.

>

> I used Radians for 2 or 3 years, and then did a head to head

> comparison one night with Radians versus monocentrics. All my Radians

> went for sale the next week! This was no subtle difference for

> planetary.

>

> Mike



Mike,

Definitely no contest there. I've only had one Radian (6mm) and

don't like the performance at all.... which is why I only have one of

them. I have intended to sell it for a long time.



Harvey



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