Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

stargazine_ep33_banner.thumb.jpg.75d09b4b1b4e5bdb1393e57ce45e6a32.jpg

Recommended Posts

30 minutes ago, Luminated said:

Thinking of getting:

https://www.firstlightoptics.com/takahashi-fc-100-series-refractor-telescopes/takahashi-fc-100dc-f7-4-doublet-fluorite-apo-refractor.html

Can it be configured somehow  to work with an EQ5 mount?

(using for visual only)

Appreciate any advice!

 

Yes, of course it can, and simply by purchasing a pair of tube-rings and a dove-tail bar.  This is my own Takahashi refractor, an FS-102, and attached to an EQ3-class equatorial.  The rings and bar were made by Vixen.  It's a snug fit, but they work...

FS-102z4.jpg.a9e22413b9b43bc8a2ffd048ea8e113b.jpg

The outer diameter of the FC-100DC's optical-tube is 95mm.  A 200mm-long Vixen-type dovetail-bar should serve.  The rings are attached to the bar with stainless-steel machine-screws(or bolts).  These 101mm rings should fit, but if they're slightly too loose, you can remove the thin felt and replace it with that somewhat thicker, and self-adhesive...

https://www.firstlightoptics.com/tube-rings/skywatcher-telescope-tube-rings.html  

The rings are white, apparently, which would match the tube of the telescope; yes, quite.  Black rings would look nice, too.

You can also consider the Takahashi tube-cradle for it, if you haven't already.  It should be possible to attach it to a dovetail-bar...

https://www.firstlightoptics.com/takahashi-cradles/takahashi-tka21420-tube-cradle-for-fs-78sky-90fsq-85edx.html

I believe that that one will fit the FC-100DC, but you will need to confirm all of that with FLO.

https://www.firstlightoptics.com/dovetails-saddles-clamps/astro-essentials-dovetail-bars.html (the 21cm)

  • Thanks 1

Share this post


Link to post
Share on other sites

I've got an FC100-DL (F/9) and it is very happy indeed on the Vixen GP which I think the EQ5 is cloned from. I've added a Vixen style DT bar to the Tak clamp:

 

takvixeq01.JPG

takvixeq03.JPG

Edited by John
  • Like 1

Share this post


Link to post
Share on other sites

Thank you both!

@JohnI had been thinking of the Takahashi cradle/vixen bar option but wasn’t sure about stability - looks rock solid from your pics tho! I guess no focus tremors etc?

@Alan64 do Vixen custom make these; how much for? Have already been drooling over the DZ... “budget” permitting, hence trying to find the most economic route via OTA etc..

Share this post


Link to post
Share on other sites
5 minutes ago, Luminated said:

 

...I had been thinking of the Takahashi cradle/vixen bar option but wasn’t sure about stability - looks rock solid from your pics tho! I guess no focus tremors etc?

 

The scope is very stable on that mount. I often use it on the Skytee II or Giro Ercole alt-azimuth mounts which are also very steady mounts for the F/9 scope. The dovetail bar is bolted to the clamp using M8 bolts so very strong.

95mm tube rings are another alternative but that size is hard to come by. Primaluce make some:

https://www.firstlightoptics.com/tube-rings/primaluce-lab-95mm-plus-tube-rings-for-takahashi-fsq85-fs-78-fc-100df-and-fc-100dl.html

 

 

 

Edited by John

Share this post


Link to post
Share on other sites

Yes, I saw these, slightly more expensive but looks solid- some don’t seem to like the colours 😆 I think it would complement the Takahashi blue tho

Share this post


Link to post
Share on other sites
7 hours ago, Luminated said:

Thank you both!

@JohnI had been thinking of the Takahashi cradle/vixen bar option but wasn’t sure about stability - looks rock solid from your pics tho! I guess no focus tremors etc?

@Alan64 do Vixen custom make these; how much for? Have already been drooling over the DZ... “budget” permitting, hence trying to find the most economic route via OTA etc..

Vixen produces a 90mm pair, and a 115mm pair.  I have the latter for my refractor.  Vixen does not offer customisations; never have in fact. 

The Sky-Watcher rings would work as well, with slightly thicker felt.  You can use carpet-tape to secure non-adhesive felt within the rings...

felt4.jpg.06292e090376deb2ea269b0b057b191c.jpg

Before, and after...

felt5.jpg.d895986cd11651b3bb5510e0b39ef5b6.jpg

...and that for a 50mm f/12 achromat from 1969.  I used pipe-clamps of iron for that one.  I'm able to use it now, albeit a bit on the dim side, although I have seen one of the dimmer globular-clusters through it; and stars within its mass, with averted-vision.

My Takahashi is a porker, weighing in at about twice as much as the DC.  John's DL comes closer to weight of my own, but not quite.  Mine is about four pounds heavier than that.  The DZ likely weighs the same as the DL.

The finish of tube-rings, or a cradle, is a personal preference, as are the colours of same.  Those Vixen rings of my own originally came from a 102mm Vixen achromat...

1340211968_Vixen102mmf9.8.jpg.6612f96a8992459000dfda353390a178.jpg

I took one look through that achromat, then decided I didn't want an achromat for my definitive 4" refractor.  I returned it and got the FS-102 instead.  But I kept the Vixen rings and bar.  True the Vixen-green is not quite as lovely as the Takahashi-green...

...but they're just rings, and they work.

Share this post


Link to post
Share on other sites
On 24/10/2020 at 12:16, John said:

I've got an FC100-DL (F/9) and it is very happy indeed on the Vixen GP which I think the EQ5 is cloned from. I've added a Vixen style DT bar to the Tak clamp:

 

takvixeq01.JPG

takvixeq03.JPG

Evening John- hoping you could let me the know the dovetail your using? Would the skywatcher ones work for instance?

Eg; there’s on offer this:

https://www.firstlightoptics.com/offers/offer_celestron-cg5-vixen-style-dovetail-bars_153906.html
 

Flo suggested this:

https://www.firstlightoptics.com/takahashi-other-accessories/takahashi-tkp71423-dove-tail-male-for-mewlon-210.html

 but seems overpriced, so hoping to find a generic alternative - getting confused on which ones would be compatible with the Tak cradle/clamshell. Would be good also if I could temporarily attach to our ST80 for an upcoming Xmas holiday to darker skies...but that might be too optimistic 

Thanks!

Share this post


Link to post
Share on other sites

I used the Tak dovetail for the DZ.....

21BF3B85-65C3-4C7A-9CBE-27D661CA3C21.thumb.jpeg.e60d45f630600d75394884e55392da05.jpeg

 

Edited by dweller25
  • Like 1

Share this post


Link to post
Share on other sites

Looks good! Hoping to find a cheaper solution... don't even have the scope yet, so there’s time

But wow on your DZ - have you posted a write up yet?

Share this post


Link to post
Share on other sites
On 28/11/2020 at 22:38, Luminated said:

Evening John- hoping you could let me the know the dovetail your using? Would the skywatcher ones work for instance?

Eg; there’s on offer this:

https://www.firstlightoptics.com/offers/offer_celestron-cg5-vixen-style-dovetail-bars_153906.html
 

Flo suggested this:

https://www.firstlightoptics.com/takahashi-other-accessories/takahashi-tkp71423-dove-tail-male-for-mewlon-210.html

 but seems overpriced, so hoping to find a generic alternative - getting confused on which ones would be compatible with the Tak cradle/clamshell. Would be good also if I could temporarily attach to our ST80 for an upcoming Xmas holiday to darker skies...but that might be too optimistic 

Thanks!

Really sorry that I missed your question.

I use an Altair 180mm dovetail bar:

https://www.altairastro.com/altair-tms---vixen-synta-dovetail-bar-clear-silver-182-p.asp

I'm sure that other brands will work as well. I use two M8 bolts to hold the bar in place using pre-threaded holes in the Takahashi tube clamp.

 

 

Edited by John

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By SStanford
      Hi all,
      I'm looking at acquiring my first goto mount and have decided on the Sky-Watcher EQ5 PRO Go-To.  Stock seems to be low everywhere at the moment so I'm keeping my eyes peeled.
      I have a few questions regarding alignment.
      Although I will be taking the mount "out-and-about" I will mostly be using the EQ5 on my balcony at home; this will make alignment with polaris impossible.  I'm relived to see the EQ5 allowas bright star alignment (with the scope beginning at north) which is great for the location.
      My question is; am I able to choose which bright stars the mount will align with? for example, if the mount asks me to confirm the position of a star I cant see at all from the balcony, can I choose stars that are visible from my side of the building?
      I'm very new to astrophotography and would like to be prepared before splashing out!
      S.
    • By Amoamao
      Hello and thanks for the add.
      I have recently acquired a TAK FC100DL (from the first production run, with the black focuser) that I have so far used only for visual with an occasional attempt at Lunar photography with a DSLR (canon 6D). The views are superb and I’ve been toying with the idea of trying it Out on deep sky objects (with the DSLR) by adding a focal reducer. However from what I can establish, the matched focal reducer for this scope is the TAK FC-35 which Carries a pretty hefty price tag.  
      Has anyone tried this combination? Or able to offer advice on wether its worth the expense.
      TIA
       
    • By Gib007
      ITEM NOW SOLD
      My personal Takahashi FSQ-85ED telescope is for sale, with a FeatherTouch 3.0" Focuser (~37mm travel) fitted. It's packed in a Geoptik Carry Bag alongside the telescope's original focuser and a bunch of Takahashi adapters to mount many types of camera to it. I used to use the included Takahashi CA-35 adapter ring along with the included adapter to M42 to mount my CCD camera directly into the FeatherTouch focuser. You may also use M42 spacer rings if you need extra distance. The included FeatherTouch focuser is significantly more performant and stable than the focuser that originally comes with the telescope, hence the upgrade I made to it, having had a couple of issues with the original focuser. The telescope is ready to be mounted, with its original Takahashi tube holder and Losmandy dovetail bar. 
      The telescope is in pristine condition except for a few scrapes on the outer side of the integrated dew shield, made by the motorised telescope cover metallic strap (the telescope has never been dropped or banged against anything). These scrapes are shown closely on the last photo attached below. The telescope has not been moved around much at all and has instead been placed in a remote observatory on a permanent pier in Spain for about two years straight. It is able to produce stunning astrophotographs of deep space. You may see some of my results here:
      https://www.flickr.com/photos/lightvortexastronomy/29259850311
      https://www.flickr.com/photos/lightvortexastronomy/30608284976
      https://www.flickr.com/photos/lightvortexastronomy/38372589885
      https://www.flickr.com/photos/lightvortexastronomy/35881314824
      https://www.flickr.com/photos/lightvortexastronomy/31737474061
      The new price for this telescope with the included accessories is just over £3,900 at present. Thank you for looking. Any questions or offers are welcome. 









    • By B4silio
      I went to my family house in the countryside and was able to take some pictures during xmas eve.

      Total exposure: 6h
      H_Alpha: ~3h (730x15s) --> R, G
      Oxigen III: ~3h (710x15s) --> B, G
      I didn't have a view on Polaris and could not spend too much time drift aligning (it was xmas eve after all :D) hence the short exposures. Moreover I dont have the proper connection rings to put my flattener on my mono camera so all stars off center are a mess :_(.
    • By Davehux
      *NOW SOLD*
      I've just blown all my pocket money on a Rowan belted HEQ5 Pro, so it's time to move on my trusty EQ5 GOTO, before my wife spots 2 tripods in my shed 😉
      I'm sure everyone knows these mounts, but just to say that it's in full working order, with just the usual wear marks here and there, and a few marker pen lines for Home and counterweight positions.
      Comes with 12V power lead and car cigarette plug, and sync lead with USB adapter to let you upgrade the firmware on the Synscan handset. It's currently at 4.39.05, which was the latest version a couple of months ago. There are 2 x 5kg counterweights as well.
      I still have the boxes for my HEQ5, so I can courier it within mainland UK included in the price. If you live elsewhere, we can work out a price.
      Yours for a sensible £350 - a new one will cost you around £575 from most of the usual retailers. Paypal Gift or Bank Transfer most welcome
      Thanks for looking
       
       





×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.