Altair PlanoStar 3" 0.79x 3-Element Reducer for 102 115 130mm Altair Triplet Refractor
- Fits standard 3" Crayford Focuser on the pre 2014 Altair Wave Series refractors with special adapter (PLANOS-3.1.0-M48-RP25-ADAPT).
- Fits standard 3" Crayford Focuser on the Starwave 80, 102 and 110mm ED Doublet refractors without adapter.
- Fits the new 2014 2.5" Rack 'n Pinion focuser on the 2014 Altair Wave Series refractors without adapter.
Altair Astro PlanoStar 3" 0.79x Reducer specification:
- The 3" PlanoStar reducer corrects for field curvature and reduces the focal length of the telescope by 0.8x.
- 3x FMC lens elements when combined with the front triplet lens system, produce a 5-element optical system with excellent colour correction.
- High quality multi-coatings on all surfaces ensure maximum transmission and almost zero reflections for good contrast images.
- The flattener is threaded directly to the Altair 3" large format focuser for optimum rigidity. Simply remove the 2" pushfit adapter and screw the flattener into the rear of the focuser. It also has a 2" Pushfit format barrel to fit most telescopes.
- an M48 rear thread allows connection to modern imaging systems or your Canon or Nikon DSLR with the appropriate M48 DSLR adapter.
- The optimum distance from the rear flat shoulder (excluding the m48 thread) of the flattener to the CCD chip in your camera is shown on the diagram. It's possible to fine tune the spacing between your CCD camera or DSLR chip by using the Altair variable and fixed M48 spacers. We recommend buying the Altair M48 spacers as a set to use in various combinations to get the ideal backfocus. If you subtract the light path distance taken up by your camera and accessories from the distances shown in the diagram (see image gallery for enlarged version), you will achieve the ideal spacing for your scope.
Availability: If showing as out of stock, please click the "notify when in stock" button on the webste and enter your email address. You will automatically receive an email update inviting you to order when the product is ready to ship.
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- Io Astronomy Please note: IO Astronomy voluntarily ceased trading with large unpaid debts affecting the entire UK astronomy industry. You may contact us for problems / issues with Altair or iOptron products ONLY - or try Darkframe Optics / Dave Woods. Unfortunately, we will not be able to support undeclared products bought from the ex-directors after the company ceased trading.
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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.
Russia orders: Please contact.