Refractor 140 mm

Availability: manufactured on request; Type: refractor

Medium-size refractor that targets both visual astronomers, interested in top quality planetary views, and imagers alike.
Paired with our Field Corrector for Medium Format, the 140 mm F/6.5 is suitable for imagers using sensors bigger than full-frame.
Both long focal ratio versions are aimed at planetary observers that want to enjoy best correction possible at the eyepiece. These series have a color correction which is tuned specially for planetary-visual peak wavelengths.

Main features:
* 3.2" or 3.5" rack and pinion type focuser from Starlight Instruments;
* 2(two) different focal lengths to choose from; (subject to availability)
* dew shield with rotate & lock feature;
* highly portable, medium size refractor;
* Oil-spaced design for best possible light transmission & highest contrast.

Specifications & technical data:
Core glass used – S-FPL53 or S-FPL55;
Clear aperture – 140 mm;
Focal length – 915 mm; Focal ratio – F/6.5;
Focal length – 1050 mm; Focal ratio – F/7.5 – Planetary Series;
Optical Quality (please click for our optical manufacturing specifications)

Dimensions:
Minimum length – from 780 mm (fully retracted dew shield)*;
Back-focus – 180 mm standard or by request, 220 mm;
Tube diameter – 145 mm;
Dew shield diameter – 164 mm;
Weight – 10 kg, including rings*.

Pricing (2019):
F/7.5 version = 7690 Euro, includes VAT 23%. Net export price – 6252 Euro (non EU countries)
FTF3235/3.2″ Starlight focuser, 89 mm travel, dual-speed; with finder bracket and dust cap;

F/6.5 version = 7990 Euro, includes VAT 23%. Net export price – 6496 Euro (non EU countries)
FTF3545/3.5″ Starlight focuser, 114 mm travel, dual-speed; with finder bracket and dust cap;

Included items:
CNC rings, D-type or V-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 eyepieces, 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 units manufactured/ordered: 29
Number of F/6.5 units manufactured/ordered: 25
Number of F/7.5 units manufactured/ordered: 4
Units still available for ordering: 6 
Availability/delivery time: ~9 months.

2019 production of 140 mm F/6.5 has been contracted entirely by Teleskop-Service in Germany;
In case you are interested in ordering such OTA, we'd recommend you to contact our Dealer.

* Overall length and weight depend on focal ratio, back-focus value and focuser;
* F/7 version is offered exclusively with 3.2” Starlight focuser;
Prices subject to change without notice. 

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