Focuser Extender
 |
A Spectroscopic Atlas of Bright Stars: A Pocket Field Guide (Astronomer's Pocket Field Guide)
List Price:  |
DescriptionA Spectroscopic Atlas of the Stars: A Pocket Field Guide is a standard reference book for all amateur astronomers interested in practical spectroscopy or spectrography. For the first time in one place, it identifies more than 70 (northern hemisphere) bright stars that are suitable observational targets for both amateurs and astronomy students. Finder charts are provided for locating these sometimes-familiar stars. Data for each star includes labelled stellar spectra, a spectral profile with spectral lines identified. These are conveniently laid out on a single page, opposite tables of spectroscopic properties, and lines and wavelengths identified. This is the first Spectral Atlas designed for amateur astronomers. It is equally relevant to college undergraduates, being intended to familiarize astronomers of any age and level of knowledge with labelled stellar spectra and their different properties. It contains much information about stars which is hard to find or inaccessible to most people. Features
|
Ford Focus Warranty - Search Ford Focus Extended Warranty
The Ford Focus is an excellent automobile, but like any vehicle it can run into mechanical and electrical problems. You might soon need to pay thousands of dollars to repair your Ford Focus. The best way to protect yourself from high repair costs is to get an extended warranty for your Ford. Ford Focus Warranty - Search Ford Focus Extended Warranty:
Although the Ford Focus is a quality vehicle, it has had some problems in the past. Every car and truck on the road will need expensive repairs at some point in the future. If your Ford Focus suffers just one problem with its engine or transmission, repairs can cost thousands of dollars if the vehicle isn't under warranty. An extended warranty for your Focus will protect you from the cost of fixing these problems once Ford's warranty no longer covers you. Don't worry about high repair costs - an extended warranty gives you piece of mind. If you live in the United States, use the link below to request a free online Ford extended warranty quote:
Click Here to Receive a FREE Ford Focus Extended Warranty Quote Online
You made a smart decision to drive a Ford Focus - now make another intelligent decision and see if a Ford Focus Extended Warranty is right for you. It only takes a few seconds to request a free quote and it you could save thousands of dollars in the future. I hope this article has helped you understand Ford Focus Warranty and why you should seriously consider getting an extended warranty for your Ford.
About the Author
 |
No items matching your keywords were found.
 |
1.25" Orion Telescope Eyepiece Extension Tube
Sale Price: $19.99 |
DescriptionThese anodized, machined aluminum tubes provide extra focuser back travel sometimes needed to achieve focus with certain eyepiece/telescope combinations. More back travel is often needed for short-range terrestrial viewing or with use of a field flattener, coma corrector, or focal reducer lens. We offer 1.25" and 2" models, which fit 1.25" eyepieces and 2" eyepieces, respectively. Each adds 2" of length extension. Each also has two locking thumbscrews and is threaded for filters. Features
|
 |
2" Orion Telescope Eyepiece Extension Tube
Sale Price: $21.99 |
DescriptionThese anodized, machined aluminum tubes provide extra focuser back travel sometimes needed to achieve focus with certain eyepiece/telescope combinations. More back travel is often needed for short-range terrestrial viewing or with use of a field flattener, coma corrector, or focal reducer lens. We offer 1.25" and 2" models, which fit 1.25" eyepieces and 2" eyepieces, respectively. Each adds 2" of length extension. Each also has two locking thumbscrews and is threaded for filters. Features
|
 |
Astro Tech Extension Tube for 2" Focusers - 50mm Extension AT50EXT
|
DescriptionAstro Tech Extension Tube for 2" Focusers - 50mm Extension - Astro Tech part # AT50EXTThis Astro-Tech 50mm long x 2" diameter extension tube can be used to make up for the loss of light path when a 2" star diagonal is removed from many refractor telescope focusers and replaced by a camera and camera adapter for imaging. One end of this Astro-Tech 2" diameter x 50mm long extension tube fits into 2" focuser drawtubes. This end is threaded to accept 48mm filters. A shallow safety groove is machined into the barrel of the extension tube. This groove engages the thumbscrew or compression ring of your focuser to prevent the extension tube and your camera from falling should the focuser thumbscrew loosen accidentally during use. The barrel extends 35mm into the focuser drawtube to provide a secure tilt-free installation when the focuser thumbscrew is firmly tightened.The opposite end of the extension tube has a 2" diameter accessory holder that uses a non-marring brass clamp ring to hold 2" accessories in place. This accessory holder adds 50mm of extension to the light path when the extension tube is seated firmly into your focuser. The overall length of the extension tube is 85mm, 35mm extending into your focuser with 50mm of external light path extension. The extension tube is machined of aluminum, anodized black. The interior has anti-reflection threading. |
