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Home > Telescopes > Refractor telescopes > Starwave Classic 102mm F11 Achromat Refractor Telescope with 2" Crayford Focuser

Starwave Classic 102mm F11 Achromat Refractor Telescope with 2" Crayford Focuser

Starwave Classic 102mm F11 Achromat Refractor Telescope with 2" Crayford Focuser
Starwave 102 Classic Achromat Refractor Starwave 102 F11 Classic Achromat from Altair Starwave 102mm F11 Classic Achromat refractor from Altair Astro Starwave 102 Classic Achromat Daystar Calcium Quark GPCAM2 Mono Camera Mercury Transit GPCAM2 Mono Starwave 102 Refractor image by Nick Mercury Transit GPCAM2 Mono Starwave 102 Refractor image by Nick Starwave Classic 102 Achromat Daystar Quantum - Gary Palmer Starwave Classic 102 Achromat Daystar Quark - Gary Palmer Jupiter Starwave 102 Classic Achromat Altair GPCAM IMX224 - Gary Palmer Jupiter Starwave 102 Classic Achromat - Gary Palmer
Price: £385.00
Incl. VAT 20% ( £64.17 )
Product code: SW102ACR
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The Starwave Classic 4" F11 refractor employs a well figured, carefully mounted Achromat lens of Ohara-Japan glass with the best anti-reflection coatings. Lenses are tested at every stage of production with a unique serial number, which is signed off by the optician in charge of the production run. Achromats are "new-old" favourite with in-the-know refractor enthusiasts for general visual observing, and long focal length refractors are paritcularly sought after for planetary, lunar, double star, and of course solar observing or imaging. 
Starwave Classic achromats should not be confused with cheap mass-produced achromatic refractors because they are in a different class entirely.
Optical charateristics: The Starwave TM Classic 4" F11 Achromat refractor sports hand figured optics at a long F11 focal ratio made from top quality Japanese Ohara glass, free from striae and internal stresses. This leads to a lens which holds it's own at high powers where others fall away. Four inches of aperture gives about 62% more light grasp than an 80mm refractor. The optics are optimised in green light which is the wavelength most visible to the human eye. This, and the long focal length of 1120mm provides a much better level of colour correction and therefore contrast than short focal ratio achromat refractors. A minus violet filter removes residual chromatic aberration on very bright objects at high powers like Venus for example. Field curvature (a feature of all refractors) is for all intents and purposes invisible at this focal ratio, and therefore deep-sky observing is a treat. (Try Altair KITAKARU RPL Orthoscopic Eyepieces!). Planetary images are crisp and sharp with relatively high magnification afforded by the long focal length, which means you can use larger long eye relief eyepieces too. Solar observing with a filter is also very rewarding at this unobstructed focal length, as is eyepiece projection. Finally cool-down is quick with little change in lens characteristics as temperature changes, making this an ideal telescope to keep in the lounge of conservatory, ready for a quick observing session. The Starwave Classic looks the part of a classical refractor too, and is a real talking point in any lounge or on any balcony.
Optical tube assembly: The CNC machined tube construction and lens quality is better than the cheap achromats flooding the market these days. Tough glossy automative grade paint on the tube is easy to clean and very tough. The internally baffled aluminium tube achieves thermal equilibrium quickly, minimising the formation of tube currents, and permits the use of Kendrick Dew Control System heaters to easily transfer heat to the optics. The 2" rotating Dual-Speed Crayford focuser has a smooth action, with a tension-adjuster on the underside. A 250mm Vixen/Synta-format dovetail bar is supplied together with CNC machined tube rings. A finder mounting bracket is included, mounted on the focuser, compatible with most finder scopes including the Altair 60mm Deluxe Finder Scope. 
Recommended for refractor fans who want a well made achromat with modern optical coatings, and a smooth dual speed Crayford focuser.
Can I do Astro-photography with the Starwave 102 Classic Achromat? Yes you can. See the thumbnail images. Because of it's extremely flat field and excellent sharpness, this is one of the most sought-after optical tubes for mono solar and lunar astro photography amongst top imagers. It's very seeing-tolerant which makes it ideal for long focal length high resolution lunar imaging with a mono camera like the GPCAM, or high resolution solar imaging with the DayStar Quark - especially in UK conditions where the seeing can be variable. The Starwave Classic delivers very consistent results due to it's long focal ratio. You don't need an expensive ERF or "Energy Rejection Filter" with this 4" aperture either, all you need is a 2" UV/IR cut filter on front of a 2" diagonal for use with the Daystar Quark. The results speak for themselves.

What's the ideal mount for this telescope? The optical tube is long but very light, therefore most equatorial mounts will accept the Vixen-format dovetail bar included on the refractor.If you don't want to take the time to set up an equatorial mount, consider the Altair Sabre AZ mount or Easy AZ400 Mount. Talk to your dealer about the best mount for your intended use.
Starwave 102mm F11 Achromat Specifications:
102mm F11 Achromat doublet with full multicoatings on all surfaces. Ohara Japan glass.
Temperature compensated lens cell with full collimation adjustment.
2" 360° rotating Crayford focuser.
Weight incl. Rings & Dovetail bar: 4.6kg (10lbs 4 ozs)
OTA Length (dewshield retracted): 1 metre (39")
OTA Length (dewshield extended): 1.2 metre (47")
Compatible with Altair Astro 60mm Finder Scope, and Universal Finder Bracket (via 2x M4 threaded holes on focuser).
Availability: Hand made optics are completed in limited production runs. If showing out of stock, click the red "notify when in stock" button for an email update when the product is ready to ship.

Altair Astro Product Discussion ForumQuestions about Starwave products?
Where to buy Starwave products:

European orders:

European orders - order on this page or contact our European dealers:

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Products can be ordered online from Altair with tracked insured shipping to anywhere in the world. For large items shipping price may need to be re-quoted.

Availability: If product shows as out of stock, please click on the "Notify me when in stock" button to receive instant notification of availability. Altair Astro and iOptron reserve the right to change the product price and specification without notice. 

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Customer feedback

Customer Reviews

  • Author: D Woden
    This "little" Star Wave achromat is now my favourite for observing the moon and Jupiter. The images are much sharper than my 127mm Maksutov which was always a little fuzzy, and I can see more fine detail on Jupiter in this telescope. It's much longer, so I've used the Skywatcher pillar extension with my EQ-5 Equatorial to gain a little height. My second telescope and probably all I need.
  • Author: Gordon Oldham
    I have only observed Jupiter and the Moon so far, these objects being very prominent at the moment. This is my first telescope and I have now watched the movement of Jupiter's moons with the Altair number 9 eyepiece, over several nights which is really fascinating. I've seen the red spot and various cloud layers using the no. 6 eyepiece. I have the Sabre mount as recommended by Altair with a Berlebach tripod and works very nicely indeed. A most satisfying purchase, and worth every penny. G.Oldham
  • Author: Jeremy Band
    I would class myself as an experienced observer only recently coming back to the hobby.

    Bad weather up here in the Scottish Isles recently, but finally a break in the clouds and what an enjoyable little telescope this is. The images are very sharp indeed and what little colour aberration there is doesn't detract from the image at all, being only visible around bright objects and such a deep violet there there is no crossover into the colours one needs to see to determine small details.

    Having read some previous comments I agree and would describe this is a wonderful little "lunar" telescope, providing very sharp enjoyable images at up to 200 power.

    Recommended as a first telescope or a regular observing tool. Offered at a price so low, yet with no compromises I can find optically or mechanically. Jerry Band
  • Author: nick crossley
    I bought this for my young son's 10th birthday and as part of our "get him off TV at least one night per week" strategy, and we've had a great time using it so far. Children like big impressive looking gadgets, and when this arrived he could barely contain his excitement. So far only the moon which has provided plenty of entertainment, but from the above comments, planets are next on the list. The accessories were well chosen with dot finder and eyepieces, plus the silver mount looks just great winning pride of place in the conservatory. Altair are a friendly and fun company to deal with, having children themselves, recommended this instantly when I explained it was for my son and I. They simply asked if I wanted an electronic gadget which we would eventually get bored with, or a device which would provide us with many years of enjoyment for not much more money. Well done! Nick C
  • Author: S Ellis
    I have been using refractors for years, and needed a telescope I could set up quickly and take outside for my house in France.

    You will not be disappointed whatever your experience level.

    These optics are really so good and reasonably priced, but you need a tall tripod. Great looking telescope too.
  • Author: Anthony Meadows
    On using the starwave 102mm f11, well engineered and durable scope well capable of lasting a lifetime,unlike some Chinese refactors with saggy focusers and resulting bad optics (I've had a couple), optically very good Jupiter's red spot stood out very clearly with detail around last night it's moons were proper sharp discs there is false colour but very much more tolerable than most non ed /apo's ,this scope is worth paying the extra for, Tony

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