1/4
telescopes

Forfax LTT 160-12 - 160mm f/12 Superapochromatic Refractor Telescope OTA Only [ISLTT160-12]

Istar Optical   ——   SKU: ISLTT160-12
$4,155.00 CAD
Add to cart
Product Info
Features
Shipping

 

About the Istar Forfax LTT 160-12 - 160mm f/12 Superapochromatic Refractor Telescope OTA...

Customer Note: This product number is for a bare optical tube only. Does not include mount, diagonal, eyepiece, etc. Photos are for reference only.

 

Istar does not offer mass produced telescopes with non-replaceable focusers, low quality rings and dovetails. Instead, they offer you the option to purchase a bare Istar Optical Refractor Telescope OTA with optics and give you a choice of focusers, mounting rings and dovetail. You do not have to purchase these from Istar. You are welcome to buy from third party manufacturers. However, we offer the original Istar PRO style rings and dovetails that are of the highest quality, stability and match each Istar Optical Refractor Telescope perfectly.

 

Unlike so many mass-produced telescopes on the market today, Istar Optical Refractor Telescope are created one at a time and then strenuously tested to insure the best quality possible. The optics of the Istar Forfax LTT 160-12 - 160mm f/12 Superapochromatic Refractor Telescope OTA are manufactured with glass from brand name companies like O'''Hara, Schott, and CDGM. iStar uses special exotic glass types to achieve a 30% - 60% reduction in CA (chromatic aberration) and spot size compared to doublet lens systems made of less expensive glass. For instance, an Istar Optical Refractor Telescope made with R60 glass will produce a spot size that is 60% less than common doublets, and a scope made with R30 would reduce the spot size by 30%.

 

Each Istar Optical Refractor Telescope Lens incorporated into the Istar Forfax LTT 160-12 - 160mm f/12 Superapochromatic Refractor Telescope OTA is produced with a super flat black-edge masking that eliminates unwanted inner objective glass reflections while improving on resolution. Once completed, all IStar lenses are tested twice. A computer interferometer test is done as well as a full visual test out under the stars. Every Istar Optical Refractor Telescope Lens is engraved with its own serial number, and that number is linked to its set of reports, which are sent to the buyer along with warranty information (5 years).

 

A special lens cap is shipped with each Istar Forfax LTT 160-12 - 160mm f/12 Superapochromatic Refractor Telescope OTA that will allow the user to increase or decrease the friction inside of the Istar Optical Refractor Telescope dew shield by simply loosening or tightening two silver bolts. It is unlike anything else on the market today.

 

The optical tube assembly and dew shield for each Istar Forfax LTT 160-12 - 160mm f/12 Superapochromatic Refractor Telescope OTA are produced in Austria and then CNC machined and powder coated in the Czech Republic. The finish of choice is matte black. The textured finish is durable and allows for a sure grip when handling the Istar Optical Refractor Telescope tube.

 

Ask anybody to describe a telescope and the image of a long tube and lens at the end will be their answer. Except for the diagonal, which makes possible viewing at a comfortable angle, there are no mirrors to scatter and lose light. There is no central obstruction, no frequent collimation to worry about and very reasonable cool down time. How about sharp, high contrast views of the Moon and planets? If you like black velvety backgrounds with pin point stars, a Istar Optical Refractor Telescope is for you.

 

Don''t forget... We carry essential Istar Optical Refractor Telescope Lens and Cell assemblies, as well as Istar Optical Telescope Accessories!

 

 

Istar Forfax LTT 160-12 - 160mm f/12 Superapochromatic Refractor Telescope OTA Features...

 

  • Super flat black-edge masking that eliminates unwanted inner objective glass reflections while improving on resolution

     

     

  • A special lens cap is incorporated that will allow the user to increase or decrease the friction inside of the dew shield by simply loosening or tightening two silver bolts

     

     

  • iStar uses special exotic glass types to achieve a 30% - 60% reduction in CA (chromatic aberration) and spot size compared to doublet lens systems made of less expensive glass

     

     

  • Made with R60 glass which will produce a spot size that is 60% less than common doublets, and a scope made with R30 would reduce the spot size by 30%

     

     

  • No central obstruction, no frequent collimation to worry about and very reasonable cool down time

     

     

  • Textured finish is durable and allows for a sure grip when handling the tube.

 

 

Istar Forfax LTT 160-12 - 160mm f/12 Superapochromatic Refractor Telescope OTA Specifications...

Type: Super Apochromatic

Number of elements: 3

Lens Diameter: 164mm

Clear Aperture: 160mm (6.3 inches)

Focal Length: 1920mm

F-Stop: F/12

Lens Coating: Fully Multi-coated

OTA weight: 20 kg (Excl. Focuser)

OTA Length: 1876mm

Istar Product Number: ISLTT160-12