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#3026 Heywood

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Posted 20 October 2019 - 09:15 AM

Are the Prima Luce rings and dovetail plate cheaper than the Takahashi equivalents? Is that why some people are buying them??

#3027 Haydon

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Posted 20 October 2019 - 11:34 AM

They are a little cheaper but still pricey.  Other than price and weight, the primary advantages of rings in my opinion are the wider distribution of the load over the length of the dovetail plate and their ability to have the telescope lie closer to the dovetail plate, which altogether leads to better vibration reduction. 



#3028 NHRob

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Posted 20 October 2019 - 12:07 PM

Also, with rings you can use a longer plate.  This will give you the option of rebalancing the scope by sliding the plate in the saddle, rather than sliding the scope tube in the clamshell/rings.

This is the way I prefer.


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#3029 Heywood

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Posted 20 October 2019 - 01:47 PM

They are a little cheaper but still pricey.  Other than price and weight, the primary advantages of rings in my opinion are the wider distribution of the load over the length of the dovetail plate and their ability to have the telescope lie closer to the dovetail plate, which altogether leads to better vibration reduction. 

Takahashi offers a clamshell or rings for the TSA-120.  From my experience with my TOA-130, though, Takahashi's weakness is the dovetail plate.  Takahashi does not seem to offer any.  I have to use a non-Takahashi dovetail plate, although I have Takahashi rings for my 130.

 

To me, the Prima Luce rings and matching dovetail plates are attractive because they look good and they are bound to be lighter than what I am currently using.  

 

Heywood


Edited by Heywood, 20 October 2019 - 01:51 PM.

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#3030 Delta608

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Posted 20 October 2019 - 03:50 PM

Disregard the rats nest of wiring, having figured it out yet,...The Prima Luce Rings are lightweight as is the plate..But as you travel the Prima Luce path, be prepared, Very proprietary......Tak.jpg


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#3031 25585

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Posted 23 October 2019 - 07:32 AM

Disregard the rats nest of wiring, having figured it out yet,...The Prima Luce Rings are lightweight as is the plate..But as you travel the Prima Luce path, be prepared, Very proprietary......attachicon.gif Tak.jpg

waytogo.gif

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Edited by 25585, 23 October 2019 - 07:33 AM.

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#3032 waso29

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Posted 24 October 2019 - 03:23 PM

here's hoping mother nature keeps skies open for mercury transit

 

versatile photo-visual grab-n-go 

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#3033 25585

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Posted 29 October 2019 - 08:34 AM

Present for my TSA120 today, a case to live in. Reduced price, an ES 127ED case. Room for the OTA with dewshield retracted and diagonal detatched. Also spaces for the diagonal, Extender & various accessories.

 

Shipping box moves up to the attic, a good thing to keep.



#3034 SkyRanger

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Posted 29 October 2019 - 05:27 PM

Some upgrades to my new TSA 120N: 

Tak Turret: This is set up now for L &P work with 4 DeLites: 18, 7, 5, and 4mms.  The 4 is currently on loan to an observing buddy (Jeff) to compare to a T.O.E.

Upper PrimaLuce plate: This makes for a very sturdy handle and a place to mount another finder.

 

GG

 

 

 

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#3035 25585

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Posted 31 October 2019 - 02:32 AM

Some upgrades to my new TSA 120N: 

Tak Turret: This is set up now for L &P work with 4 DeLites: 18, 7, 5, and 4mms.  The 4 is currently on loan to an observing buddy (Jeff) to compare to a T.O.E.

Upper PrimaLuce plate: This makes for a very sturdy handle and a place to mount another finder.

 

GG

Very nice. I use a similar arrangement with my Taks. No turret yet. Delites good choice.


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#3036 bobhen

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Posted 31 October 2019 - 08:44 AM

I also use mostly Delites with my TSA 120, excellent ER, very sharp to the edge and a nice pairing with the TSA – all good.

 

Bob


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#3037 25585

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Posted 31 October 2019 - 09:21 AM

Thinking of a Tak turretful, I would have a Vixen LVW 22mm (always), 18mm Delite, 13mm Delite, Barlowed 2x 18mm Delite.

 

For a TEC turretful, I would add an ES62 26mm as widest field or 28mm Tak Erfle 60° or maybe a 35mm Celestron Ultima as largest 1.25". 

 

A NPAE turret, that takes two 2" eyepieces & holds 6 altogether on my TSA120...42mm Vixen LVW, 30mm APM UFF, 22mm Vixen LVW, 15mm Delite, 9mm Delite, 7mm Delite.

 

What weight can a Tak 2.7" focuser take?


Edited by 25585, 31 October 2019 - 09:33 AM.


#3038 eros312

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Posted 31 October 2019 - 10:10 AM

tak1.jpg

My Fc76 DCU on its new Vixen AP mount. Also got that TS right angle finder attachment. 


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#3039 eros312

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Posted 31 October 2019 - 10:11 AM

tak2.jpg


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#3040 Axunator

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Posted 31 October 2019 - 10:21 AM

This is bad - an acute comorbid condition of takitis, TECitis and televuitis. Received the TEC turret from Baader today. What a beautifully machined piece of gear jump.gif. I hope my Tak won't mind such crossbreeding tongue2.gif

 

IMG_1008.jpg


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#3041 YAOG

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Posted 08 November 2019 - 05:25 PM

Okay here is something I have resisted posting because I wanted to be sure of the results. Several months ago I came across a couple of pretty 100mm EDs, a blue tube Celestron XLT 102ED and classic white tube Vixen ED100Sf. With both scopes in a Side-By-Side mount (with ADM MAX Guider ALT/AZ device) show virtually identical optical quality and IMO this scope is the best optical bang for the buck in 100mm class doublets. The Celestron 102ED has been sold to someone who appreciated the blue tube more than I did and I kept the classic white Vixen ED100Sf. A couple months ago I acquired one of the first run black focuser Takahashi FC100DL scopes and have been marveling at the contrast, sharpness and clarity this scope delivers ever since. 

 

The issue is that when comparing the Takahashi FC100DL and Vixen ED100Sf in my handy coalignable SBS saddle mount the Takahashi is clearly showing more detail, contrast and deeper magnitude stars at the eyepiece when swapping Baader BBHS prism or Baader BBHS mirror diagonals back and forth. I have been doing this under sort of lousy skies but under a dark sky the results seem to be much the same. I have been out observing with several different people and there has been unanimous consensus that the Takahashi FC100DL is visually noticeably better than the Vixen ED100Sf. Nobody failed to comment on the differences at the eyepiece from 40+ year observers to first time public star party attendees at Mount Wilson Observatory a couple weeks ago, all had the same impressions. Okay most if not all of the Takahashi people here would expect there to be a difference between these 100mm f/9 doublets and there is no doubt in my experience an obvious difference. 

 

The interesting part was that when the Baader HBBS coated diagonals were removed and a 2"AP Maxbright and 2" TPO quartz dielectric coated diagonals were swapped into the comparison the difference became less obvious especially noticeable when looking at anything with nebulosity. That night at MWO this was most obvious on M45 and M42. Has anyone else noticed this?

 

I'm speculating it's Baader's BBHS coatings with their broader angle of reflection and wider spectral response we're seeing over what is in essence an optical brickwall filter or notch that only passes a slightly narrow band of visible light and maybe the strict 90 degree reflection angle of the dielectric's refletive coatings. Any thoughts here? 


Edited by YAOG, 09 November 2019 - 01:50 PM.


#3042 25585

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Posted 08 November 2019 - 06:04 PM

Could be   https://www.cloudyni...-diagonal-r3038



#3043 YAOG

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Posted 10 November 2019 - 11:18 AM

Yes, I had seen BillP's article but had forgotten that Baader's BBHS coatings could make such a difference at the eyepiece after using them for a while. I agree with BillP, the Baader BBHS Sitall diagonal has a clear advantage over even the top shelf AP and TeleVue diagonals but at a significant bump in price. After using the Baader BBHS diagonals for a while it became apparent to me that my premium AP and TV dielectrics had been made redundant and I sold the TV Evertbrite because it was basically new in the box and I preferred the views from the AP more. The only reason I kept the 2" AP Maxbright after observing with the Baader BBHS Sitall mirror and Zeiss spec prism was to use at public star parties, but maybe that's wrong headed and I should sell the AP mirror and just share the views from the Baaders with the public. 


Edited by YAOG, 10 November 2019 - 11:22 AM.

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#3044 25585

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Posted 10 November 2019 - 02:09 PM

What objects and magnifications showed you the BBHS was best?



#3045 Phil Jones

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Posted 10 November 2019 - 03:45 PM

Received my new Prima Luce rings & plates for my new pre-owned FSQ-85ED:

 

48931666838_a6b781afeb_c.jpg

 

48932394972_cf3e552ffd_c.jpg


Edited by Phil Jones, 10 November 2019 - 03:46 PM.

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#3046 Heywood

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Posted 10 November 2019 - 03:51 PM

Received my new Prima Luce rings & plates for my new pre-owned FSQ-85ED:

48931666838_a6b781afeb_c.jpg

48932394972_cf3e552ffd_c.jpg


It's purty!!

Heywood
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#3047 waso29

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Posted 10 November 2019 - 11:27 PM

For those looking for specs of old Tak scope, old doc from TNR:

 

http://67.222.100.20...s/OTASpecs1.pdf


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#3048 organge

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Posted 11 November 2019 - 11:15 AM

The little FS-60Q did good today on Mercury transit. Got a good half an hour between clouds.

 

tak-111119-mercury.jpg

 

tak-111119-mercury-2.jpg


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#3049 YAOG

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Posted 11 November 2019 - 12:25 PM

What objects and magnifications showed you the BBHS was best?

The time spent on M42 & M45 going back and forth with the different diagonals and eyepieces was done in the last hours of the Mt. Wilson Observatory public star party a few weeks ago. Most of the public was gone but they participated too. These were the only objects we did side by side,  head to head comparisons with that night. It was the nebulosity brightness and size difference and to a lesser degree star brightness that caused us to investigate the differences.

 

The Tak FC100DL and Vixen ED100Sf scopes are both 100mm @ f/9 tubes and given that M45 is about 2 degrees initially I had the TV 27mm Panoptic in the smaller T2 Baader BBHS Zeiss spec prism which gives about a 2.0 TFOV @ 33x which has a 34mm unobstructed light path. I also used my goto TV 24mm Panoptic which shows me about a degree and a half maybe @ 38x or so and TV 13mm Nagler T6 which shows about one and a quarter-ish degrees @ just under 70x or so. 


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#3050 YAOG

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Posted 11 November 2019 - 12:34 PM

The little FS-60Q did good today on Mercury transit. Got a good half an hour between clouds.

 

attachicon.gif tak-111119-mercury.jpg

 

attachicon.gif tak-111119-mercury-2.jpg

I like your hinged split rings, what are they if I can ask?




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