Refractor 180 - 185 mm

Availability: manufactured on request; Type: refractor

180/185 mm alongside our 200mm F6.5, represent the ultimate portable size refractor and offers a step-up in aperture, when compared to its smaller brother the 160 mm.
Although having a short focal ratio for its aperture, this instrument is highly recommended to astronomers who enjoy a pure visual experience of Moon, planets, double stars and deep-sky objects as well as imagers looking to take advantage of its big aperture and increased resolution.
Suitable for imaging, the 180mm F/7 or 185mm F/6.8 paired with our Field Corrector will deliver a corrected image circle of ~55 mm diameter, allowing use of cameras equipped with full frame or 52mm diagonal chip for capturing wide field deep sky images.
Like all our objective lenses, oil-spaced lens design helps in quickly reaching ambient temperatures, which is a big advantage when using these OTAs in places where significant temperature change can occur during observing/imaging sessions.

Main features:
* 3.5" rack and pinion type focuser from Starlight Instruments;
* dew shield with rotate & lock feature;
* bino-viewer friendly design;
* portable big size refractor;
* Oil-spaced design for best possible light transmission & highest contrast.

Specifications & technical data:
Core glass used – S-FPL55;

Clear aperture – 180 mm;
Focal length – 1260 mm; Focal ratio – F/7;

Clear aperture – 185 mm;
Focal length – 1260 mm; Focal ratio – F/6.8;
Optical Quality (please click for our optical manufacturing specifications) 

Dimensions:
Minimum Length – 1160 mm (fully retracted dew shield);
Maximum Length – 1330 mm (fully extended dew shield);
Back-focus – 220 mm;
Tube diameter – 185 mm;
Dew shield diameter – 217 mm;
Weight – 17 kg, including rings.

Pricing (2021): 
180mm F/7 = 17 220 Euro, includes VAT 23%. Net export price – 14 000 Euro (non EU countries)
FTF3545/3.5″ Starlight focuser, 114 mm travel, dual-speed; with finder bracket and dust cap;
185mm F/6.8 = 16 911 Euro, includes VAT 23%. Net export price – 13 749 Euro (non EU countries)
FTF3545/3.5″ Starlight focuser, 114 mm travel, dual-speed; with finder bracket and dust cap;*

product unavailable for ordering. Pricing for reference purposes only.

Included items:
CNC rings, D-type dovetail, transport case.

Mechanical accessories:
Dovetail, Losmandy Type, 350 mm length, lightweight = 140 Euro, including VAT 23%; Net Price = 114 Euro;
Handle, 300mm length = 85 Euro, including VAT 23%; Net Price = 69 Euro.

Visual accessories:
A prism or mirror diagonal will be needed, together with good quality eyepiece, to be able to extract the most of your new telescope.

Imaging accessories:
Field Corrector = 650 Euro, includes VAT 23%. Net export price – 528 Euro (non EU countries); Corrected Field = 55 mm;
Adapters and extensions to suit one's observing and/or imaging needs.

Number of 180mm F/7 units manufactured/ordered: 10
Units still available for ordering: 15
Availability/delivery time: 2nd half of 2021

Number of 185mm F/6.8 units manufactured/ordered: 20
Units still available for ordering: none, product unavailable/sold out.

* Prices subject to change without notice.


Powered by Froala Editor

Powered by Froala Editor

Powered by Froala Editor

Powered by Froala Editor

Powered by Froala Editor

Powered by Froala Editor

Powered by Froala Editor

Powered by Froala Editor

Powered by Froala Editor

Powered by Froala Editor

Back to products list