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Altair Astro RC300-TT V3 12" Truss Tube Ritchey Chretien Astrograph Telescope

Altair Astro RC300-TT V3 12'' Truss Tube Ritchey Chretien Astrograph Telescope
 Altair Astro RC300-TT V3 12'' Truss Tube Ritchey Chretien Astrograph TelescopeAltair Astro RC300-TT V3 12'' Truss Tube Ritchey Chretien Astrograph Telescope 
Price:  £3,299.00(Inc. 20% VAT)Earn 3,299 Loyalty Points

Model:  AARC300-TT-V3
Brand:  Altair



No stock, delayed despatch

2 Year Warranty On All New Items

The latest Version 3 12" Truss-Tube design Ritchey Chretien telescope with ideal optical and engineering.

- a more rigid outer skeleton using Carbon Fibre rods in a Surrier Truss configuration
- new independent mirror / focuser backplate supports, and independent tilt collimation
- Open design promotes air-flow around the optics for faster temperature equalisation and virtually no tube currents which plaque SCTs and other scopes. What's more, laminar flow currents over the optics (micro-seeing currents) are drastically reduced. The result is an amazing planetary imaging performer, despite the large secondary obstruction.

- 2432mm focal length to reveal detailed structures in challenging deep sky objects such as galaxies and planetary nebulae, whilst keeping overall weight of the optical tube very low 

- Fuzed quartz optics with enhanced 99% reflective coatings give rapid temperature equalisation *
- 3x rear 12v cooling fans which can be powered by batteries, a Kendrick Digifire Dew Controller 12v outlet, or a 12v DC power port such as found on the iOptron CEM60 mount.

- Large secondary to minimise vignetting which will easily illuminate a full size CCD sensor

- Centre-spotted secondary mirror for easy collimation

- Both primary and secondary mirrors can be independently collimated for the best performance unlike a Schmidt Cassegrain

- Focuser backplate can be independently adjusted for tilt, relative to the rear and front mirror cells (allowing independently tilt adjustment of the focuser).

- 3x Rear 12v cooling fans which can be driven from batteries, your Kendrick Digifire Dew Controller 12v outlet, or a 12v DC power source like on your iOptron CEM60 mount or just a battery pack.

- 2x Losmandy plates on top and bottom

- Finder mount accepting Lightwave finder bracket

- Special double layer cross-weave Neoprene shroud made in the UK, allowing good airflow, whilst blocking out stray light and dust **
- 3x Focuser extension rings. 2x 25mm and 1x 50mm extension ring fitting between focuser and OTA to adjust backfocus**
- 3" Linear Bearing Crayford focuser included as standard, able to carry a medium size CCD camera with OAG, or DSLR (for heavy cameras and filter wheels, you can upgrade to a Starlight Feathertouch 3.0" Focuser).

- 285mm back focus for any accessory including spectrographs

- Weight: 19.5kg without focuser, approx 20.5kg with standard 3" linear bearing focuser

- Optional dew heater and camera tilt adjuster available

Your choice of iOptron, SkyVision, Skywatcher or Bisque observatory mount.

* An improved surface accuracy now available with dielectric coating.

** These essential accessories are included in the price and last time we checked are worth well over £200 if bought separately. Always check.

Availability: We order these scopes each month, but sometimes there is a wait for the next shipment, because they are often presold. Click the notify when in stock button for and email update. 

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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 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 774 369