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. Starlight Xpress: 
 » Cooled CCD Cameras. 
 » Guide Cameras. 
 » Filter Wheels. 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.
Meade Stella Wi-Fi Adapter
Meade Stella Wi-Fi Adapter.
Stella allows you to wirelessly control your computerised telescope with your smart phone or tablet.
7.5mm-22.5mm ZOOM
Opticstar XL 7.5mm-22.5mm ZOOM Eyepiece.
The Opticstar XL 7.5mm-22.5mm ZOOM is a premium zoom eyepiece of superior optical quality and craftsmanship...
Cooled CCD
Opticstar DS-616C XL+
The Opticstar DS-616C XL+ uses the Sony ICX413AQ, 6.1 mega pixel colour
CCD (1.8"). Complete with power supply unit and software...
Meade LPI-G Colour
Meade LPI-G colour
The Meade LP-G Colour video camera for imaging and guiding.
Meade LX200 ACF 10" UHTC
Meade LX200 ACF 10" UHTC.
The Meade LX200 ACF 10 UHTC is a 10" advanced catadioptric with a computerised fork mount.
Ascension 80ED Triplet
Ascension 80ED Triplet
The Ascension 80ED Triplet APO from the premium range of telescopes...
Meade ETX125 Observer
Meade ETX125 Observer
The popular ETX125 Observer takes mobile astronomy to a new level...
Imaging Filters
Opticstar 1.25" LRGbB filter set.
The Opticstar CRGbB filters. A set of five 1.25" filters for imaging.
Meade LPI-G Monochrome
Meade LPI-G monochrome
The Meade LP-G Monochrome video camera for imaging and guiding.
Opticstar PX-126C
Opticstar PX-126C
The Opticstar PX-126C colour video camera for guiding and planetary imaging.
Ascension Accessories
Ascension Field Flattener.
The Ascension Field Flattener Suitable for ED Triplet refractors. Optical field correction to the edge of field...
Mirametrics Articles
Pixel Response Effects On CCD Camera Gain Calibration
Pixel response. White Paper: The gain of a CCD camera is the conversion between the number of electrons ("e-") recorded by the CCD and the number of digital units ("counts") contained in the CCD image...

Amateur Astronomer Detects Exoplanet using Mira AP
Exoplanet. We describe how amateur astronomer Ronald Bissinger of Pleasanton, CA, detected the eclipse of HD 149026 during 3 nights of observations beginning June 29, 2005. He used Mira AP software to make the critical...

Precision Astronomical Photometry using Large Image Sets
Precision astronomical photometry. White Paper: Near Los Alamos, New Mexico, Dr. John Farrell studies variable stars using Mira Pro 7 to do precision aperture photometry on large sets of CCD images. Dr. Farrell is a physicist who wants to focus on science rather than on...

Photometric Measurements Between Kodak KAF-0400
& KAF-0400-ABG CCD
Comparing CCDs. White Paper: CCD's with anti-blooming gates can suppress the tendency for bright point sources, such as stars, to "bleed" along columns. However,...

Combining Images Using Integer And Real Type Pixels
Combining images. White Paper: A common procedure used to increase the signal to noise ratio ("S/N") of images is to combine them in software by mathematically merging the pixel values of the individual images...

Repairing a Streak Artifact in a Single Image
Repair streak. This Tech Note describes a method for removing a streak artifact from a single image. If we had 3 or more images of the same field, the images could be registered and then median combined to remove...

CCD Temperature Variability And Dark Current Correction
Dark current. White Paper: An important step in CCD image calibration is the removal of the thermal signature commonly known as "dark count". An accurate measurement of the dark count in a CCD image cannot be made from the image itself. To determine the dark count...

Centroid Noise And Precision Astronomical Photometry
Centroid noise. White Paper: Centroiding noise is a random error, or "noise" component of a photometric measurement that results from placement of the measuring aperture on the object being measured. Centroiding noise is not considered as part of the internal error reported...

Recovering An Image Having An Irregular Background
Irregular background. Images with an irregular background can result from incomplete correction of vignetting or background colour variations. A flat field correction is the first step to correcting both effects...

Removing Background Irregularities From A CCD Image
Remove background. The flat field correction removes two types of artifacts in CCD images: vignetting and other effects introduced into the image by the optical path, and local effects such as sensitivity variations as a function of position and wavelength of light...

FITS WCS Keywords Recognized By Mira Version 7
FITS WCS keywords. The FITS format supports World Coordinate System ("WCS") calibrations that relate column, row positions to standard coordinate systems or physical dimensions. The FITS WCS is supported by all Mira version 7 platforms. The FITS WCS standard...

X-Ray Crystallography Research Using Mira For Data Visualization
X-ray crystalography. The X-ray diffraction image in Figure 1 was sent by Dr. Masanori Hidaka of Kyushu University in Japan. Dr. Hidaka does CCD development which involves X-ray crystallography. Doing 3-D visualization using Mira...
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: 22nd August 2017
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
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Willmann Bell
Books for Astronomy
updated: 28th February 2019
Willman Bell books.
Acclaimed books from Willmann Bell...
Opticstar News
Imaging Brochure
updated: 10th February 2014
Opticstar brochure.
Download the Opticstar imaging catalogue here.
Pixel Response Effects On CCD Gain Calibration
Pixel response.
The gain of a CCD camera is the conversion between...
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".
We want to hear your comments.
© Opticstar Ltd 2019