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MrsGnomus

COMPLETED - ** NOW SOLD - PLEASE REMOVE AD ** Williams Optics Star 71 (Mk I) - £750

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MrsGnomus    200
Posted (edited)

Williams Optics Star 71 (Mk I) f/4.9.  This was bought from FLO back in January 2016.  It has been used for imaging in an observatory.  The Mk II Star 71 version is only 4 elements – this is the 5 element original version.  The focal length is 350 mm, so it gives outstanding widefield views.  Because this is a modified Petzval there is no need for flatteners, reducers and no need to work out ‘spacing’.    

It comes with a Vixen dovetail and a Canon T2 adapter is included.  The scope was supplied in a padded Williams Optics carry bag and it is highly portable.  

Please note that if you want to use this scope for visual work a specially designed 1.25” diagonal is required.  Normal diagonals cannot be used because of the rear lens elements.  As I say, this scope was used solely for imaging and we did not try it visually.  

There were some QC problems with the Mk I - some versions of this scope were poor and could not be corrected.  Indeed, the first version we obtained was returned because we were not happy with it.  This is a good copy - I have attached a couple of sample images - also https://www.astrobin.com/275291/E/?nc= 

£750 including delivery.  I’d prefer payment by bank transfer.

The scope is also up for sale on UK ABS.  I'll be puting the Lakeside focuser unit I used with this up for sale separately.

Star71_1.thumb.jpg.2b4a2598dcb065982100f4f388d4f8db.jpg

Star71_2.thumb.jpg.af7a103517fc3172ce3671512bc69530.jpg

Ha_Stretch_Apr_2018.thumb.jpg.ecd861e9c7562f6b9ef703edfa7fa9fc.jpg

 

01_Ha_HT.thumb.jpg.5c976d1c3b48b569fdad177e8a19d81f.jpg

 

Edited by MrsGnomus
Typo

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geordie85    652

I wish you'd put this up a week ago.

Still going to keep my eye on this as I've already got one and know how awesome a scope it is

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MrsGnomus    200

The scope is great but we have gone a bit OTT with scope purchases over the winter - we currently have two too many imaging rigs for the number of piers that we have access to. We either have to sell a scope or build yet another observatory (and buy another camera, filter wheel, filters......)

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Davey-T    10,271

Already got 3 so don't really need another unless, thinks, hmmm quad imaging rig :grin:

Have you thought of a dual setup ?

Dave

Triple-rig.thumb.png.9975a7aa7f5c2dc0203daea5fbcc42ab.png

 

 

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MrsGnomus    200
40 minutes ago, Davey-T said:

Already got 3 so don't really need another unless, thinks, hmmm quad imaging rig :grin:

Have you thought of a dual setup ?

Yes - been there done that! We had two side by side on an EQ6 in a roll away observatory last year - Steve then bought another scope for visual that he put on the EQ6. We can swap quickly between two single scopes but setting up, balancing and aligning a dual rig quickly is another matter entirely. I did try to persuade him to piggyback one Star 71 on top of the scope that is currently on the Mesu in our ‘main’ observatory so that we could have dual scopes a few yards apart but he was having none of it! I think he has other plans........

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swag72    5,865
24 minutes ago, MrsGnomus said:

........I think he has other plans........

Oh dear.......... That sounds very expensive :D 

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MrsGnomus    200
15 minutes ago, swag72 said:

Oh dear.......... That sounds very expensive :D 

You don’t know the half of it..... and here was me hoping that the first trip across the Bay of Biscay would put him off for life.

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swag72    5,865

Sounds like he needs his own shed at e-eye then! 

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MrsGnomus    200
15 minutes ago, swag72 said:

Sounds like he needs his own shed at e-eye then! 

Fortunately Jose and Cristina only had one pier left in Apollo 6......

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