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HP A7163-04001 Slimline Dvd-Rom For Rp4440
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VCRs and camcorders are subject to dust, smoke and tape residue that will reduce overall picture and sound quality. Maxell offers video head cleaners designed to meet your specific needs.The VP-201 VHS Cleaning System features Wet/Brush technology.
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This family of coaxial cable assemblies are ideal for applications that call for a operating temperature of -70 degreesC to +200 degreesC. The Tetrafluoroethylene dielectric and the Fluorinated Ethylene Propylene jacket also comply with the VW-1 vertical flame test. The crimp style BNC plug connectors produce a robust assembly for the most demanding applications. These high performance cables are available from stock in 15 lengths ranging from 1 to 100 feet. This is L-com part number CC142B-1.
Product Description
Newtonian reflector telescopes offer a number of excellent features including Freedom from most optical aberrations and delivery of very bright images. Reasonably compact and portable to focal lengths of 1000mm Excellent performance observing faint deep-sky objects such as nebulae, remote galaxies and star clusters. Lowest cost per square inch of aperture due to use of mirrors rather than le nses. The 114mm (4.5") Newtonian equatorial telescope is the most popular size telescope for the more serious beginning or intermediate level astronomy enthusiast, and for good reason. The large light gathering power of this 4-½" telescope makes it ideal for deep-sky observation of galaxies, star clusters and nebulae, as well as lunar and planetary observing. This makes for a very useful and versatile instrument that can take an observer from the very first time looking through a telescope's eyepiece, through years of observing interesting subjects near and far in the night sky.
Firstscope 114 Short This version of the 4½" Newtonian telescope offers more portability than the standard longer tube Newtonian without sacrificing power or performance. The short tube of this model is only 18" long and has a built-in correction lens, giving it all the focal length of the standard model, while reducing aberrations. The equatorial mount is quite stable, with setting circles and slow motion controls on both axes for easy, smoot
Amazon.com Review
Celestron's compact Firstscope 114 Short Telescope offers three times the light gathering power of 60mm refractors in a system that's light, portable, and affordable. The package includes the CG-2 equatorial mount, an adjustable aluminum tripod, two eyepieces (20mm and 10mm), a red dot finder scope, and an introductory version of "The Sky" astronomy software.
With this telescope its easy to see Saturn's rings and Jupiter's cloud belts. When the night air is still and clear I've been able to see the Cassini division in Saturn's rings and even spot the shadow of Jupiter's moons crossing the planets cloud tops! Deep space objects like star clusters and galaxies also show up nicely. The Ring Nebula M57, for instance, shows up as a pale smoke ring, and globular clusters like M13 and M15 begin to reveal their individual stars.
The compact 18-inch long optical design of the Firstscope 114 Short is very similar to the computerized Nexstar 114-GT. Like the Nexstar 114, this telescope uses a short focal length mirror combined with a corrector lens to simulate a traditional long tube reflector. This works best at moderate powers; at low power the stars seem out of focus near the edges. Planet views are OK if you keep the planet near the sweet spot in the center, but again sharpness declines toward the edges. If you're willing to spend a little more, Celestron's long tube Firstscope 114EQ is capable of sharper images.
To get the best views from a Newtonian reflector, the optics may need to be tuned up or "collimated" occasionally. I find a Collimation Tool helps get this fine tuning just right. The other essential accessory is a guide book like NightWatch or a subscription to Night Sky magazine; once you own a telescope you'll want to know where to look for cool sights like planets and galaxies! Jeff Phillips
Pros:
- Compact and affordable
- Includes all the basics
- Good (but not great) optics
Cons:
- Views are soft around the edges
- Optics may need fine tuning
- Terrestrial images are upside down
Amazon.com Product Description
The Celestron Firstscope 114 Short is a compact Newtonian reflector. This 18-inch scope is portable without sacrificing brightness or clarity of image. It features an equatorial mount for stable observing, as well as setting circles and slow-motion controls on both axes for smooth, easy tracking. This telescope is an excellent choice for viewing galaxies, star clusters, and nebulae, as well as for watching our own solar system. It comes complete with the Celestron Firstscope 114 Short, an adjustable tripod with accessory tray, two eyepieces (20mm, 6mm), and Celestron's one-year limited warranty.
Customer Reviews:
I like it better and better each time I use it........2004-10-29
I've had my Firstscope 114 Short for almost two years now. I really think I couldn't have chosen a more appropriate one. I live in a house with a backyard and I have a car. Since the telescope doesn't take up much space, I just keep it set up in a corner of my room for the entire winter when I'm not using it. (I live at 64°N so stargazing in the summer is off.)
It's easy to get it in and out of the car when I want to escape the light pollution. I just take the eyepieces from the tray, unfasten two screws to lift the tube off and then I can put the whole thing in the back seat in two pieces (plus the eyepieces). Taking it out to the backyard is just a matter of carrying it there by one hand and then working the screws to raise the tripod with the other hand. The eyepieces just ride along in their tray. Since it is so easy to handle, I use it a lot when I have the time and the sky is clear.
I could easily use it right away when I got it thanks to the StarPointer, which is much easier to use than a real finderscope.
The optics seem to be of good quality. I learned to collimate the mirrors so I probably get views pretty much as good as anyone does with a scope this size. I think it will turn out to be big enough to keep me entertained with deep sky viewing until I save up for a telescope five times its price. Since it has an equatorial mount, I can also look at the planets and the moon with high magnification.
This telescope isn't really designed with astrophotography in mind, but it does have a piggy back mount and with a T-adapter and T-ring an SLR body can be attached to it. Don't expect it to be any good for long exposures though.
The things that I would complain about, if any, are the setting circles, which are useless due to bad design, the screws that fasten the slow motion dials (and which I should just replace) and that a plastic part on the tripod broke, luckily without detracting from the functionality of the tripod.
If you are looking for a telescope that is easy to use, can be used for observing the planets and also easily be transported in a small car to a dark sky site for deep sky observation (but not necessarily taking pictures) and if it is the right price for you, I recommend the FirstScope 114 Short. I'm very happy with mine.
good scope..........2004-07-15
i took delivery of this scope about a week ago, and though i haven't used it much for astronomical observing, i have had a whale of a time with terrestrial stuff. for the price i paid, it's an excellent VFM product, and i'm looking forward for the skies to clear so that i can really freak out with this telescope, with astrophotography being at the top of my list.
now to specifics...
the equatorial mount is not 100% rock-solid - it's a little shaky sometimes, specially when i set it up in a hurry - but any trembles settle within about 5 to 6 seconds. the 4.5" aperture is fairly decent, and i have found that contrast provided by the included eyepieces is pretty decent. i'm not sure what kind of eyepieces are included, as i'm yet to hear from celestron on this query. the 10mm ep doesn't have as good eye-relief as does the 20mm, but that's to be expected (and is not specific to this scope), i guess.
the scope was delivered by adorama.com, and was fairly well packed. collimation was near perfect, and i haven't meddled with this one yet.
i'll need to transport this one back home to india - more than 8000 miles away by air, and still need to find out what will happen to alignment on that journey - according to all accounts, i'll need to collimate it when it lands back home. celestron doesn't include much by way of enlightenment on collimation - they only say to visually eyeball alignment - this is sketchy at best, and i'll need to read up on this one and not trust the manual totally.
while on the manual... looks like this was written by some sweatshop employee without much grasp of the language, the component break-up image is missing some part number indicators, etc., etc... don't go by the manual much - just look at it as something that celestron needs to include with the scope, and they have done it - absolutely no quality there.
parts... the scope is of pretty good quality - mostly metal parts; a little plastic, though bearable. the ota looks like it will take a lot of abuse and seems to be sturdily built. parts of the mount may need to be shimmed to get close tolerances - to ensure less shaking than current. an optional t-ring has to be bought to plug an slr camera to the unit, so that feature is available on demand, too.
my personal conclusion: it's an excellent scope for my money, and i'm very happy with the purchase. am looking forward to carry out some decent astrophotography with it, and shall try to update this review, if at all possible.
Pretty good scope.......2001-04-14
This a very portable scope. Its aperture is big enough to show pleasing views of fairly bright deep sky objects. The planets are good,but not as good as a refractor of similar aperture. Its mount is not that shaky. I recommend this scope for anyone starting in astronomy.
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