Refractor 105 mm

Availability: manufactured on request; Type: refractor

We began manufacturing the F/6 version in 2013, looking to create a portable refractor, aimed at travelers who seek airline portablility with maximum aperture. We warmly recommend it for visual & imaging astronomy, birds & other wildlife observing & imaging, eclipse chasers.
The version with 915 mm focal length, features a Strehl ratio > 0.95, from 430 to 700 nm; as such, it will render planetary images with highest color fidelity/resolution, limited only by aperture & local seeing conditions.

Main features:
* 3" or 3.2" rack and pinion type focuser from Starlight Instruments;
* 3(three) different focal lengths to choose from; (subject to availability)
* dew shield with rotate & lock feature;
* airline travel friendly, being very compact;
* Oil-spaced design for best possible light transmission & highest contrast.

Specifications & technical data:
Core glass used – S-FPL55;
Clear aperture - 105 mm;
Focal length – 630 mm; Focal ratio – F/6;
Core glass used – S-FPL53;
Clear aperture - 102mm;
Focal length – 730 mm; Focal ratio – F/7*;
Focal length – 915 mm; Focal ratio – F/9 – Planetary Series*;
Optical Quality (please click for our optical manufacturing specifications)

Dimensions:
Minimum length – from 495 mm (fully retracted dew shield)*;
Back-focus – 180 mm standard or by request, 220 mm;
Tube diameter – 114 mm;
Dew shield diameter – 135 mm;
Weight – from 5.9 kg, including rings*.

Pricing (2019):
F/6 version = 3790 Euro, includes VAT 23%. Net export price – 3081 Euro (non EU countries)
FTF3035/3″ Starlight focuser, 89 mm travel, dual-speed; with finder bracket and dust cap;

F/6 version= 3990 Euro, includes VAT 23%. Net export price – 3244 Euro (non EU countries)
FTF3235/3.2″ Starlight focuser, 89 mm travel, dual-speed; with finder bracket and dust cap;

F/7, F/9 versions = 3790 Euro, includes VAT 23%. Net export price – 3081 Euro (non EU countries)
FTF2535/2.5” Starlight focuser, 89 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, 200 mm length = 85 Euro, including VAT 23%; Net price = 69 Euro;
Handle, 120 mm, paired with Dovetail = 70 Euro, including VAT 23%; Net price = 57 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 = 450 Euro, includes VAT 23%. Net export price – 366 Euro (non EU countries); Corrected Field = 52 mm;
Adapters and extensions to suit one's observing and/or imaging needs.

Number of units manufactured/ordered: 30
Number of F/6 units manufactured/ordered: 30
Number of F/7 units manufactured/ordered: 0
Number of F/8.7 units manufactured/ordered: 0

Units still available for ordering, F/6 focal ratio: 6
Units still available for ordering, F/7 & F/8.7 focal ratio: 10
Availability/delivery time: ~9 months.
* Overall length and weight depend on focal ratio, back-focus value and focuser;
* F/7 & F/8.7 models are offered exclusively with 2.5” Starlight focuser;
*
Prices subject to change without notice.

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