ISTAR OPTICAL produce an extensive range of exciting refractors in achromat and anastigmat formats - ultra high quality lenses  at down to earth prices.
Tube Assemblies - all prices subject to confirmation at time of order due to currency fluctuations
Availability - as all lenses and tube assemblies are produced on a small batch basis dependant on order ststus, lead time/delivery will vary. Please contact us for estimated delivery.
All ISTAR OTAs use aircraft grade magnesium alloy tubing, providing strong and very rigid support. The fully baffled tubes are powder coated for durability, and come with a lens cap. Dewshields now are retractable, some with a bayonet locking system.
The fully adjustable push-pull lens cells and other tube fittings are CNC machined from titanium magnesium alloy, with either a polished natural finish or anodised with colour dependant on product type.
ares wfx 150-5 r35_03
NEW FOR 2016 - Moonlite dual speed rack and pinion 2" focuser on all OTAs as standard. 
However, a choice of focusers is offered - Moonlite, Starlight Feather Touch, or Baader SteelTrack, all in 2inch fitting.
Finder units are optional extras, and we would recommend the Teleskop Services, APM range or brand of your choice. 

Anastigmatic lens options - Rx technology

This optical arrangement yields near ED performance but with the major benefits of lower lens weight and faster cool down time than triplets - and considerable cost savings.


05 perseus tcr 150-12         

The TCR Range 

 This novel, open frame design is currently unavailable with a new design pending.

Achromats - Perseus Range

2 element Fraunhofer achromatic OTA

AXT - with sliding dewshield, Moonlite dual speed 2" focuser, fast lock mounting rings, white textured finish  

                                               Prices from     


AXT150-8  150mm F8              1925
AXT150-10  150mm F10              1995




Anastigmatic Asteria Range 

Currently one model available:

WFX 150-5 R50, specification as for AXT range    Prices from £3085



Achromats - Phoenix Range

2 element achromatic wide field

WXT - same specification as AXT range

One model currently available - WXT 204-6 LT £4665




See the review by Neil English in December 2014 Sky at Night magazine of the WXT 204-6 LT
Specification :  204mm achromat, f5.9, 1220mm focal length.  Fully baffled OTA with retractable dewshield weighs 12 kilos.
Supplied with CNC tube rings and William Optics dual speed rack and pinion focuser as standard - any focuser may be specified at additional cost.
" ..the rich field obsever's dream ticket..."  " ...I trained the instrument on delta Cygni and was impressed to have glimpsed the companion."
" ... I was deeply impressed to fit the entire Pleiades cluster into the field of view!"   Neil's review is very complementary on all counts.


Astrograph Range

New models under development



Please note that prices on Istar Optical US website are ex-works and do not include shipping, import duty or VAT. 
Our prices include 20% VAT.