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Antares Versascope 10 x 60 Guiding / X-Hair Finderscope

Antares Versascope 10 x 60 Guiding / X-Hair Finderscope
Price:  £199.00(Inc. 20% VAT)

Model:  VS60S
Brand:  Antares

2 Year Warranty On All New Items
(Excluding Batteries & Globes)

  (2 Reviews)

The Antares Versascope is a very versatile accessory. This is a 10 x 60 crosshair finderscope that doubles up as a small guide scope. A very inexpensive way to either upgrade your current finder or get a guidescope attached easily onto your system.

The scope features a 6 point adjusting rings for easy alignment to either your object or a guide star. It also has a synta style base for easy attachment onto a wide range of scopes.

It also features a front focuser for easy focusing and a wide field 25mm crosshair eyepiece for easy alignment. The 90 degree prism will correct the view for the right way up images.

The rear of the finder has a 1.25" twist lock adaptor for the best hold possible. If you unscrew the adaptor, this will give you a T thread so you can attach guide cameras and other accessories while still being able to focus using the front focuser.

The scope also has a built on dew shield to battle dew forming on the front of the lens.

This really is a brilliant scope and there is nothing on the market that can touch this. Very versatile and very easy to use.

Focal length: 227mm

Average Rating (2 Reviews):  
Write a Review and share your opinions!

Such a versatile finder
24 March 2021  | 

So versatile I have two on my scope. The first is for visual use giving bright images (though the crosshairs can be difficult to see under dark skies); the second has a Pentax K-to-C-mount T-adaptor attached via a short T-mount extender into which the guide camera is screwed via the C-mount. An excellent all rounder.

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1 of 1 people found this review helpful.

A Finder Up-Grade to Die For
08 November 2015  | 

Bought as an up-grade for my TAL 30mm straight through finder. The TAL unit has fine optics but is limited by the modest 30mm aperture and the angle you need to crane your neck into to view the sky, especially when the desired object is near the zenith (overhead). The Antares 10 x 60 with right angle erecting prism solves all of these difficulties. It also provides the ability to mount eyepieces of different focal length in place of the 27mm one supplied as standard. This gives you the ability to control the magnification and field of view the Antares finder scope provides. Money well spent. One slight issue, the picture of the web site shows the finder scope's mount apparently fitted back to front. If you reverse the finder mount the finder scope then balances on the base. I might be wrong but this change seems a logical way to a better balance telescope. Please also be aware that the finder doesn't come with the Synta/Skywatcher bracket necessary to mount to your telescope. So unless your last finder used this type of mount best order one separately and be prepared to do some surgery!

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25 of 25 people found this review helpful.

Some items that are showing as in stock are in stock at our holding warehouses, not at the shop. To double check the stock levels at the shop, please contact us on 01909774369 or

The delivery times for most items is 1 - 2 days but again, please double check stock levels on important orders before placing an order via the website.

The delivery costs for courier next day are for mainland UK only. If you live in the Scottish Highlands/Islands, Channel Islands or Northern Ireland, then a shipping surchage will apply. please contact us for prices. Smaller items can still go 1st class via Royal Mail.

Please note that if you are wanting to take advantage of our Saturday and Sunday timed services or next day pre 12 or pre 10:30 services, you MUST check that the stock is here at the shop before placing orders. Also, orders using the Saturday and Sunday services must be placed before 1pm the previous working day. Also, please remember to check that the stock is here at the shop before placing orders. If the stock is not at the shop, we won't be able to ship on any of the timed services. 

Please note International customers will need to contact us for a shipping price prior to ordering via the website. We don't ship all items internationally. It is at our discretion what we ship outside of the UK. This all depends on the size and weight of the items. Please get in touch with us for any postage costs. Please note we do NOT ship telescopes or heavy items outside of the UK. This is due to massive postage costs and problems regarding returns.

If you have any questions regarding stock levels or delivery, please get in touch.

Zygo Interferometer Testing For ED Refractor Telescopes!

We are extremely pleased to announce our Zygo Interferometer is now installed and ready for use! Our experienced staff can test refractor lenses up to 120mm aperture and provide a comprehensive 2 page report showing the optical quality and Strehl ratio, plus much more information. We are using the very latest Zygo MX software to provide a more detailed report compared to other standard reports.


The interferometer is essentially a measuring instrument. Within the interferometer is a calibrated laser that is pointed through the optical test surface, then onto a high quality reference sphere, then back through the test subject then to an internal camera which gives us the measurement on the screen. From this, we can adjust the position of the test optic and the reference sphere to obtain a perfectly calibrated system. The more central the laser to the test optic and then on return, the better and more accurate reading and measurement we can take. This takes a lot of adjustment to get the best results from the optical surface. Once the measurement has been taken, we are provided with a series of results that show the optical quality of the surface plus other information. Continue reading for an explanation of the individual values and you can also see a test report that was done on one of our RVO Horizon 60 OTAs. 

We are offering certain telescopes with a Zygo test at an extra cost. Mainly ED doublets and triplets. All available telescopes with a Zygo test report are listed here. Just select Zygo Test Report from the drop down box at the top of the listing and we will test the optics in house and provide a full 2 page report with your scope. This will show you the optical quality of your telescope optics. We can also offer this service on your refractor telescope. Please get in touch for more details about this. 

At Rother Valley Optics, one thing we pride ourselves on is customer service and quality of our equipment. When we test your telescope, we will ensure that it is of the highest quality otherwise, we will reject the scope under our strict quality control and test another model for your peace of mind. One of the main values to look at when testing a refractor is the Strehl ratio. The higher this number, the higher quality lens you have. At Rother Valley Optics, we will guarantee the highest possible Strehl ratio for your telescope.  We will aim to provide 0.95 Strehl or higher on Takahashi, RVO Horizon, William Optics and many more! Generally, the higher the Strehl ratio, the lower the Astigmatism and Coma meaning a better image quality from your instrument. 

Other measurements such as the PV and RMS are important too. With these measurements, the lower the number the better as it shows less curvature on the lens. The flatter an optical lens, the better it will perform. The PV rating (Peak To Valley) is a measurement from the highest point (Peak) to the lowest point (Valley). From this we get the RMS (Root, Mean, Square). This is a similar figure to the PV and measured exactly the same way. The RMS is basically an average height difference from the PV so again, the lower the better. As you can see form the example below, we measured an RMS of just 0.027 wave which is a very good value.

We also measure the Power with our systems which is essentially the error from the reference sphere to the test optic. The reference sphere we use on our system is a very high quality sphere so the closer to zero the Power, the less error between the 2 elements thus ensuring a higher quality optical surface. 

You will also see some more values such as Astigmatism and Coma. Again, these are measured by the interferometer when we take measurements of the optical surface after adjustment. These are values which ideally would be at 0 but as our test optics are all curved lenses, there will always be astigmatism and coma present. The lower the number, the less of these aberations you will effectively see but with most refractors, you can buy field flatteners which will compensate for the coma anyway. The astigmatisms value is explaining the error between the symmetrical curvature of the lens. Basically, no lens will be perfectly symmetrical, the lower the astigmatism, the more symmetrical the lens surface is. 

Once the Zygo test report has been completed, the optical alignment is thoroughly tested and tuned to ensure they are spot on before they leave us. 

All available telescopes are on the website at the link below and ones we've tested already that are available straight away are also listed.

Here is an example of the test what we provide. This was a test on one of our Horizon 60 ED OTA's.

For any questions about this amazing new service, please either call 01909774369 or email


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