Barlows

Barlow lenses are used to change the magnification of an eyepiece.  If an eyepiece gives a magnification of 50x (e.g. 20mm eyepiece used with a telescope with 1000mm focal length), then the same eyepiece used with a 3x Barlow lens on the same telescope will give a magnification of 150x (3x50).  A Barlow lens effectively increases the telescope's focal length.  In the example above, the telescope has an effective focal length of 3x 1000mm = 3000mm.  Used with a 20mm eyepiece gives a magnification of 3000/20 = 150x.  The following product ranges form part of this category:

  • Barlow lenses:  These lenses are normally associated with additional magnification.  Thus, the magnification value is greater than one.
  • Focal reducers:  These lenses reduces the magnification for an eyepiece.  These lenses are primarily used for imaging (photography) and allows a larger field field of view to be imaged.  The reduction value is smaller than one and effectively reduces the telescope's focal length.
  • Coma correctors:  Fast (short focal length) Newtonians are prone to coma.  This is an optical effect where objects towards the edge of the image are out of focus and appears cometlike.  These lenses correct for this effect and allows reduced coma or even coma free wide field images.  These lenses typically comes with minimal added magnification and are therefor included in this category. 



Product Image Item Name- Price
Baader Planetarium Hyperion Zoom 2.25x Barlow lens

Baader Planetarium Hyperion Zoom 2.25x Barlow lens

Baader Planetarium Hyperion Zoom 2.25x Barlow lens Triplet lens design for astigmatic flat field suitable to complement the high image quality of the...
R1,725.00

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Celestron 1.25" 2x Omni Barlow Lens

Celestron 1.25" 2x Omni Barlow Lens

Celestron 1.25" 2x Omni Barlow Lens If you're looking to move up to a higher quality eyepiece, Celestron's Omni series provides more enhanced...
R1,275.00

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Celestron 2x, 1.25" Ultima Barlow Lens

Celestron 2x, 1.25" Ultima Barlow Lens

Celestron's Ultimas, 1.25-inch. 2x Barlow lens is high on everyone's list of absolute must-have accessories.  A very good Barlow, it will make quite...
R1,645.00

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GSO 1.25" 2.5x Barlow (APO) Lens

GSO 1.25" 2.5x Barlow (APO) Lens

GSO 1.25" 2.5x Barlow (APO) Lens Nothing has been compromised in GSO's latest and finest offering. This Barlow features an air-spaced,...
R1,125.00

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GSO 1.25" 2x Shorty Barlow Lens

GSO 1.25" 2x Shorty Barlow Lens

GSO 1.25" 2x Shorty Barlow Lens  This GSO 2x Barlow lens fits into any 1.25" focuser and accepts 1.25" eyepieces and is a good 'value...
R775.00

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GSO 1.25" 5x Barlow (APO) Lens

GSO 1.25" 5x Barlow (APO) Lens

GSO 1.25" 5x Barlow (APO) Lens Superb performance on lunar or planetary imaging and for coaxing high powers out of short focal length...
R1,325.00

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GSO 1.25" APO-chromatic 3x ED Barlow Lens

GSO 1.25" APO-chromatic 3x ED Barlow Lens

GSO 1.25" APO-chromatic 3x ED Barlow Lens For those observing targets where you need more power than your eyepiece alone can provide, we offer...
R895.00

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GSO 2" 2x ED Barlow Lens

GSO 2" 2x ED Barlow Lens

GSO 2" 2x ED Barlow Lens. This lens is made of high quality materials, including Extra Low Dispersion (ED), fully multi-coated optical lens to...
R1,995.00

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Orion 1.25" 2x Shorty Barlow Lens

Orion 1.25" 2x Shorty Barlow Lens

Orion 1.25" 2x APO Barlow. Features: Multi-coatedThreaded for filters 2x Barlow shorty can be used in dobsonians and Newtonians Note:  The price...
R775.00

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Televue 1.25" 2.0x Barlow Lens

Televue 1.25" 2.0x Barlow Lens

Televue 1.25" 2.0x Barlow lens. This is a PRE-ORDER product .  The price may change when we get new stock in and is based on: $125 Retail...
R1,775.00

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