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Help Identifying/Finding/Purchasing Dovetail

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#1 SJMarty

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Posted 14 January 2020 - 10:37 AM

Hello,

 

I would like some help identifying a dovetail plate.  Some background...

 

I purchased a set of rings that have a handle attached to the top of them.  I don't care for the dovetail plate that they came with for a couple of reasons.  First, it's painted and not anodized so every time I tighten the main screw down, it mars the paint.  Second, the edge is smooth (meaning no "notches") so I'm concerned about no "safety" stops.  I've been told by my better half that I can be clumsy.  smile.gif

 

So, I've done a lot of searching and found images of the dovetail plate I want (I attached an image).  What I know...

  • It's a Vixen-style dovetail plate.
  • It's 7.5" / 19 cm long.
  • The screws for the rings should be spaced approximately 6.3" apart.

I'm not sure what the proper term is for the notches/safety stops.

 

I'm hoping someone can help me identify what I'm looking for and possibly, where to get one.

 

Thank you for any help.

 

-Steve

Attached Thumbnails

  • rail.jpg


#2 coopman

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Posted 14 January 2020 - 11:28 AM

This one seems pretty close:

https://optcorp.com/...gp-style-mounts



#3 macdonjh

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Posted 14 January 2020 - 11:32 AM

Perhaps just send that image to Astronomics and see if they carry it.



#4 Don W

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Posted 14 January 2020 - 11:41 AM

I'm pretty sure It will not fit in a Vixen dovetail. Very early Vixen Polaris and Super Polaris mounts used those. I don't recall exactly how they were used but it involved bolting your OTA to the mount rather than sliding into a dovetail.


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#5 cst4

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Posted 14 January 2020 - 11:43 AM

Just saw that one you posted a pic of earlier today while I was searching for a dovetail.  That's a skywatcher one and not sure if it is sold in the states.  Here it is at First Light Optics which is a great UK company to order through:   

https://www.firstlig...ing-plates.html

 

The Vixen one that Coopman posted is similar.  I have one like it.  It only works on my Vixen Porta mount though.  It has to be a mount that opens wide and locks the dovetail in place with a screw... these do not work with clamp style dovetail saddles, so keep that in mind.



#6 coopman

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Posted 14 January 2020 - 11:55 AM

cst4 is correct.  I just tried mine, which is just like the one you pictured, and it won't work with my Evolution mount.

You can add a safety screw to any dovetail.  I have installed a self-tapping screw on some of mine.



#7 *skyguy*

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Posted 14 January 2020 - 12:00 PM

That's a Vixen Dovetail Bar that also fits Celestron and Sky Watcher mounts.

 

https://www.cameraco...ting-rings.html



#8 OldManSky

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Posted 14 January 2020 - 01:38 PM

cst4 is correct.  I just tried mine, which is just like the one you pictured, and it won't work with my Evolution mount.

You can add a safety screw to any dovetail.  I have installed a self-tapping screw on some of mine.

I agree.  These "special" kinds of dovetails are for lower-end, non-"Vixen" type mounts where things are screwed on.  That same dovetail is on this mount from Orion (zoom into the photo to see it).

 

https://www.telescop...1col5-prodtitle



#9 SJMarty

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Posted 14 January 2020 - 03:19 PM

Thanks for all of the quick responses.

 

Just to clarify, I don't have a Vixen-brand mount.  This is for my LXD75 with a 5" OTA.  The actual Meade part is 07620 but I've had no success finding that as it's long been out of production.

 

The Vixen SX from OPT looks promising.  It doesn't have the notch in it which I may just have to get over.

The Sky-Watcher one from FLO is perfect except for the length.  It's only 15 cm so my new rings with the handle would not fit.

The used one from Camera Concepts & Telescope Solutions is also spot on except it's only 6" long so same issue with the rings/handle.

 

Thoughts on posting a "wanted" ad in the classifieds?  Since this isn't exactly a popular item, I'm wondering if I have a better chance of someone having one laying around unused.



#10 cst4

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Posted 14 January 2020 - 04:37 PM

I purchased this "short" 18cm Astro Essentials dovetail from FLO and think it is absolutely great for the price.  

 https://www.firstlightoptics.com/dovetails-saddles-clamps/astro-essentials-dovetail-bars.html

That one is the cheapest solid metal one I could find even though it is from Europe.  Probably took about 10 days to get to me in GA.  It is a little over 7 inches but the mounting length can be shorter since it has the long slots.  It's solid metal and really just as good as my 7" ADM dovetail that came with one of my scopes (costs like $50 new).  No there's no notches in it for the mount screw and yes the screw will likely still leave marks... but it is a great dovetail for the price and will fit in any Vixen sized mount unlike the other ones.  Just thought I would give you another cheap option.


Edited by cst4, 14 January 2020 - 04:38 PM.


#11 Andynator

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Posted 14 January 2020 - 06:00 PM

https://www.amazon.c...r/dp/B0017WVV08

#12 coopman

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Posted 14 January 2020 - 06:58 PM

I added leather trunk handles to all of my refractors. This would eliminate the critical handle length that is limiting your choice of dovetails:
https://www.brettuns.../trunk-handles/
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#13 SonnyE

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Posted 14 January 2020 - 07:28 PM

I added leather trunk handles to all of my refractors. This would eliminate the critical handle length that is limiting your choice of dovetails:
https://www.brettuns.../trunk-handles/

I like those Clay!

Pricey, but nicey.



#14 SJMarty

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Posted 18 January 2020 - 05:02 PM

I added leather trunk handles to all of my refractors. This would eliminate the critical handle length that is limiting your choice of dovetails:
https://www.brettuns.../trunk-handles/

Interesting. Would you mind posting a picture?

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