Meade Instruments:  
 » LX90 SCT & ACF Series. 
 » LX200 ACF Series. 
 » LXD75 ACF Series. 
 » ETX Computerised Telescopes. 
 » Lightbridge Dobsonian Telescopes. 
 » Premium Refractor Telescopes. Coronado Solar Telescopes: 
 » Personal Solar Telescopes. 
 » SolarMax II Telescopes. Opticstar sections: 
 » Cooled, long exposure cameras, 6.1MP CCD, USB 2.0. 
 » Video cameras for planetary use up to 1.3MP, USB 2.0. 
 » Imaging accessories. 
 » Auto-Guiding systems, complete solutions. Ascension telescopes and accessories: 
 » Apochromat ED Triplet Refractors 
 » Achromat Doublet Refractors  
 » Eyepieces including zoom eyepieces. 
 » Guiding eyepieces. 
 » Extension tubes. 
 » Flip mirrors. 
 » Imaging filters. 
 » Barlow lenses. 
 » Binoviewers. 
 » Red dot finders. 
 » Eyepiece projection kits. 
 » Mirror and prism diagonals. The Imaging Source: 
 » High speed USB 2.0 video cameras. 
 » High speed Firewire video cameras. Farpoint Astro: 
 » Dovetail systems and mount accessories. 
 » Focus masks. 
 » Binocular mountings. Willmann Bell books. Shoestring Astronomy sections: 
 » Autoguiding connectivity kits and interfaces. 
 » Shutter control units for DSLR cameras. 
 » Focus motor controllers.
Opticstar 1.25" x2 Barlow w/T-thread
Doublet Lens - Fully Multicoated - Male T-thread
Opticstar 1.25" x2 Barlow w/T-thread.
  • Focal length multiplier: x2
  • For 1.25" draw tubes
  • Cemented doublet lens
  • Fully multicoated achromatic lens
  • Male T-thread (M42 x 0.75mm) at the back
  • Metal body
Opticstar Imaging
Accessories
Auto-Guider
Accessories
Electronic Interfacing
USB & FireWire
Opticstar Visual
Accessories
Opticstar 1.25" x2 Barlow w/T-thread
Model / Description View in Showroom Order code Price inc VAT Shipping Dispatched witnin click button to purchase
OS 1.25" Barlow x2 T no OSRBL1X2T £ 24.95 £ 6.00 24 hours

Outline
The 2x barlow doubles the power of any eyepiece, offering a total of ten magnifications. In addition the barlow can be used as an imaging adapter for your camera with or without the 2x optical element attached to it thus offering 1x and 2x imaging magnifications.
The barlow has a 1.25" drawtube and will accept standard 1.25" accessories including eyepieces and diagonals. The barlow also has a male T-thread on its back that can be used to attach a DSLR camera and other T-thread type accessories.
Opticstar 1.25" Eyepiece & Filter Set.
Barlow Lenses
Barlow lenses are used to multiply the focal length of the objective lens/mirror of your telescope and therefore its magnifying power. The benefits of using a Barlow lens will result in image magnification, improved eye relief and reduced spherical aberration in the eyepiece.

Barlow lenses can also be used with binoviewers that in certain cases are unable to reach focus, especially when used with Newtonian telescopes and refractors with short focus travel. The extended focal length provided by the Barlow will then make focusing possible. Sometimes binoviewers are supplied with their own detachable barlow lens.

Notice
We are constantly checking the accuracy of the technical data. We are prepared to provide more detailed information on request. Technical data is subject to change without notice.

How To Order Terms & Conditions Email Us
Product Search

Opticstar News
New DS-616C XL+ Model
posted: 24th August 2017
Opticstar DS-616C XL+.
Star product, improved.

The new Opticstar DS-616C XL+ deep-sky CCD is the successor to the popular DS-616C XL that earned the annual star product award back in 2013. It maintains all the features of the original model as well as other improvements.


DS-616C XL is Astronomy Magazine's Star Product
posted: 12th September 2013
Opticstar DS-616C XL is Astronomy magazine's product of the year.
Star product.

The Opticstar DS-616C XL deep-sky CCD camera has earned the annual star product award from Astronomy, the world's best-selling astronomy magazine. Read about it in the September 2013 issue.

Online Shopping
Credit & Debit Cards
updated: 18th June 2019
Online shopping.
We accept all the credit and debit cards shown above. Online payments are cleared by Barclays. Online payment integration by Worldpay. Please read our
Terms & Conditions

Willmann Bell
Books for Astronomy
updated: 20th September 2019
Willman Bell books.
Acclaimed books from Willmann Bell...
more
Articles
CCD Temperature And Dark Current Correction
Dark current.
An important step in CCD image calibration is the...
more
A&M 152mm f/8 Review
"Fantastic Performance" "Beauty of a Ferrari"
updated: 25th March 2009
A&M 152mm f/8 TMB.
Read the latest review about the A&M 152mm f/8 A&M/TMB on Cloudy Nights. According to the review this telescope combines the "beauty of a Ferrari" with "fantastic performance". The review also states that "the manufacturer's claims are valid".
Feedback
We want to hear your comments.
contact
© Opticstar Ltd 2021