Home > Telescope Accessories > Astro Imaging > Accessories
(Details shown apply to the default selection)
Model: SW65Brand: Starwave
Generally In Stock, Please Confirm Before Ordering
Whether you’re doing planetary visual observing, planetary imaging, or deep sky imaging, the Bahtinov Mask is a great accessory to get the best focus for your telescope quickly and easily. Credit goes to Russian amateur astronomer Pavel Bahtinov for making his idea available to the astronomy community.
Starwave TM Bahtinov masks are adjustable to fit a wide range of optical tubes, unlike masks which are only able to fit one telescope. They have an adjustment lattitude of about 50mm in aperture making them very versatile.
Starwave TM Bahtinov masks are made from precision laser cut ABS plastic, which is stiff enough to remain in position, yet has enough “give” to make them tough without being brittle in the cold, unlike acrylic masks which are made from thick, heavy, brittle and hard acrylic plastics.
Starwave TM bahtinov masks grip the telescope tube gently but firmly with three metal posts covered in non-scratching silicon sleeves. This prevents slippage, whilst allowing the mask to remaining perfectly central. This is unlike other masks with two posts, which rely solely on gravity to hold them in position. Because of this 3-post mounting, the Starwave Bahtinov mask remains centred, whilst fitting a wider range of telescopes, saving you money if you decide to change optical tubes. So, all you need to do is measure the outer diameter of your telescope tube or deshield, and choose a model corresponding to that OD dimension.
I had read about the Bahtinov mask and the 'easy' way you can make your own. Although I am very adept at constructing models etc. and was contemplating making my own, I decided to buy one of these to match all the other professional accessories I have for my LX-200 8inch scope. I thought initially it was a bit expensive but when I received the mask it was worth every penny. As the description says, the ABS plastic is very professional and is very well cut. It will not give me any problems on cold nights! The three metal posts are well engineered and have a thick silicon removable coat which gives the mask a great feel and hold on the telescope with no scratches. It took a couple of minutes to tighten these onto the mask so that it is symmetrical on the scope and now it just slips on and off the scope as required. Saying that, they do hold the mask on the scope with a reasonable firmness. I am very pleased with the product and would recommend any one to buy one if they use this method of focusing - much better than hand made!
Was this helpful to you? Yes / No
17 of 17 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 firstname.lastname@example.org.
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 2pm 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. 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.
Rother Valley Optics now have a loyalty point scheme active on the website. As you can see from the products, every item has a point value. Each pound you spend with us, you will receive 1 loyalty point. 1 point is worth 1p. You can accumulate these points as you shop with us, then when you are over £5, you can spend them on the website! Easy as that.
Even if you collect most of your items from our shop, you can still order via the website and select the "shop collection" delivery option. Then you can come to our shop, collect your item and still get your points!
Please note this scheme is online only. Customers who order via the telephone can still be added to the scheme manually. Please ask for more details on this. Before placing orders online, please make sure you are registered with us first otherwise your points won't be allocated.
So happy shopping and if you have any questions about the scheme or any other queries, please get in touch.
Rother Valley Optics
Finance is now available on most products above £250! We offer 12, 24, 36 and 48 months with a fixed 15.9% typical APR. Please note this can't be done through the website at this moment in time. You will need to email us or drop into the shop to sort out finance. As long as the item is above £250, finance is generally available!
Please note some items are NOT eligible for finance. Please contact us for eligibility first.
Please get in touch with us today to find out if you're applicable.
You must be over 18 years to apply, live in the UK, have a valid UK bank account and not be bankrupt. Your credit file will be searched on application to see if you are eligible.
Rother Valley Optics Ltd is registered in England and Wales 04762707. Registered Office: 21 Station Road, Kiveton Park, Rotherham, S26 6QP. Rother Valley Optics Ltd acts as a credit broker only. Rother Valley Optics Ltd are authorised and regulated by the Financial Conducts Authority. Credit provided subject to age and status..
If you have any questions about this, simply give us a ring or drop into the shop for a chat.
- - - Rother Valley Optics Ltd
01909 774 email@example.com
Customers who bought this item also bought:
*NameYour name*Contact InformationPlease enter your email address or telephone number here so we can contact you about the price match*URL of competitors websitePlease enter a link here to the item where you have seen it cheaperAdditional InformationAny additional information can be inputted here*Please add the two numbersSubmitSubmit