Search results

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    Planning to buy a new telescope

    For that kind of money, an Orion Starblast, hands down. This is one of very few telescopes under $200 that anyone should ever consider (pretty much everything else under $200 is junk, with the exception of the Edmund Astroscan). Remember you'll want to budget some more money for accessories...
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    Telescope adapter for HP Photosmart 945

    Scopetronix makes an excellent line of adapters for many digital cameras. They couple directly to eyepieces (either their own eyepieces or most Plossls such as the Meade Series 4000 ones) and should help reduce or even eliminate vignetting compared to holding the camera up to the eyepiece...
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    Small paychecks + expensive hobbies =! happiness

    Heck you're looking at north of $3000 for the OTA alone. Add in a mount, diagonal, and other miscellaneous accessories and you'd be in the $5000 range. Want to do imaging? Add at least another $1000 for a DSLR, or waaaaay more than that if you want to do long exposure work. Expensive hobby...
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    More bad news for hubble

    First of all, Hubble isn't doomed because the Shuttle isn't gonna fly any more (it is), it's doomed because if a Shuttle were to fly to Hubble, there would be no way for it to fly to the ISS since the orbits are too different. The requirement that the ISS be reachable is to allow astronauts to...
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    More bad news for hubble

    Like WinstonSmith said, terrestrial telescopes have a number of challenges that space-borne scopes don't have. Imaging the other half of the sky is one. Another one is exposure length...the longest possible exposure is the length of a single night. Then you have weather, which even at the best...
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    DPreview.com: Nikon D70 Review

    I'd have to agree 100%. CCD imagers from SBIG and others use CCD chips that have specifically been designed for ultra-low noise and very high quantum efficiency (read: sensitivity). Those factors are critical in long exposure astrophotography. A digital camera, no matter how good, will never...
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    A few photos from today. *Now with 100% more lizard!*

    Here's my pic of the moon, though an 8" Dobsonian at 47x, with a Kodak DX3900 3.1MP digital camera. :) http://members.rogers.com/wong.chris/images/moon_47x.jpg Unfortunately the full moon is the worst for photography (IMO) because the lack of a terminator and the shadows prevents you from...
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    Any Amateur Astronomers here?

    Oh yeah, and if he does live in a light polluted location, having a 6" Dob will be far more useful on those nights where he's able to get to a dark sky observing site.
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    Any Amateur Astronomers here?

    That's nonsense. A 6" Dob will perform better on the planets and the moon than a cheap refractor because of: 1) greater resolution and light grasp 2) lack of chromatic aberration 3) a mount that isn't jiggly (and if you're spending $300 for a scope and a mount, it will be jiggly to some extent)...
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    Any Amateur Astronomers here?

    I would agree that Dobs are not the be all and end all of astronomy. However, they're a great starting point, particularly when you only have $300 to spend. At that price point, Schmidt-Cassegrain and Maksutov-Cassegrain scopes are out of reach. So are refractors any bigger than about 100mm. The...
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    Have we been on the Moon ?

    Sounds reasonable, but unfortunately that isn't true. It is correct that Hubble cannot track the moon fast enough to get a shot. However, it doesn't need to! The moon is bright...so much so that it takes a very short exposure to capture the moon. Hubble's controllers merely point the telescope...
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    Any Amateur Astronomers here?

    In the $300 range, your best bet by far is a 6" Dobsonian, sold by many reputable companies. Here's a brief list: http://hardinoptical.com/dsh6.html http://www.telescope.com/shopping/product/detailmain.jsp?itemID=365&itemType=PRODUCT&iMainCat=4&iSubCat=9&iProductID=365...
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    abit ai7 or asus p4p800 deluxe

    Considering you have both boards, why not try them both out? ;) I've been wondering the same thing...I'm switching to Intel and I need to choose a board, and both the Asus P4P800 Deluxe and Abit AI7 are at the top of my list.
  14. T

    10 power Russian Telescope $4.99

    Those who say the Russians can't produce good optics obviously have never seen scopes made by TAL, Intes, and Intes Micro.
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    Anyone here have a telescope?

    I'll agree with arcas here in saying that 70mm aperture is too small to see a good selection of celestial objects. I'll also agree that the Orion Dobsonians are a very good choice for the beginner, since they are affordable and feature very good optics (something you can't tell just by looking...
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    Astronomy people! I need help!

    Why would retrograde motion be indicative of a captured asteroid? It could easily be captured going in the "correct" direction.
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    Astronomy people: I'm telescope shopping. Got my eye on one here. Comments?

    Maksutov-Cassegrains, particularly the smaller ones like the one you linked to, are among the most portable scopes available. Just beware of one difference between it and a similar refractor: the long focal length won't be able to provide wide fields of view like a common refractor (f/6 to f/10)...
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    Astronomy people: I'm telescope shopping. Got my eye on one here. Comments?

    Aperture is always useful, even in the city. Aside from gathering more light (allowing you to see more objects), a larger scope also means greater resolution so that you can see more detail.
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    Astronomy people: I'm telescope shopping. Got my eye on one here. Comments?

    Regarding the cleaning of telescopes: don't do it unless the dust is so thick that you can barely see through the scope. You'll need distilled water and medical cotton balls (not the cotton balls you can buy in a pharmacy...they're not soft enough), otherwise cleaning the scope will do more harm...
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    Astronomy people: I'm telescope shopping. Got my eye on one here. Comments?

    The general rule is if you have less than $200 to spend, buy a pair of binoculars instead of a scope. Scopes that cost under $200 are invariably crappy, the TNT M64s of the telescope world.
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    Astronomy people: I'm telescope shopping. Got my eye on one here. Comments?

    In the <= $400 price range, a small Dobsonian is the best bet for almost all types of observing. You have the benefit of a dark sky site, and an 8" Dobsonian would show an incredible assortment of objects. As arcas said, the Dobsonian is the ideal beginner scope in virtually all respects. It is...
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    Astronomy people: I'm telescope shopping. Got my eye on one here. Comments?

    1) Within the $400 range, you have fairly few options. Your choices include 6" and 8" Dobsonians (1, 2), small 60-80mm computer-controlled scopes (1, 2, 3), and 80-100mm refractors on equatorial mounts (1, 2). Of those options, by far the best value and the best general purpose scopes are the...
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    Astronomy people: I'm telescope shopping. Got my eye on one here. Comments?

    Motorized mounts are good, particularly for high power views of the planets (since the object would drift out of the field of view in under 30 seconds). Surprisingly, hand-tracking is not as tedious as it sounds, and there are certain mods (for $20 or less) you can do to Dobsonians to get even...
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    Astronomy people: I'm telescope shopping. Got my eye on one here. Comments?

    A Dobsonian is a type of mount. It is characterized by its simple altitude-azimuth design and readily accommodates large scopes. In almost all cases, the only type of scope design used on a Dobsonian mount is the Newtonian reflector, though it is possible (if not exactly practical) to mount...
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    If I wanted a telescope, how much would I be paying?

    Binoculars work, and they work well. In fact, nearly everyone who has a telescope also uses a pair of binoculars to observe. The reason is that the low magnification of binoculars gives a wide field of view, allowing you to scan large patches of the sky. The average pair of 8-10x binoculars has...
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    If I wanted a telescope, how much would I be paying?

    You're implying here that a smaller scope will show more than a larger scope under the same light polluted skies. That's nonsense. While contrast won't be any better in the larger scope, the larger scope will allow you to detect fainter objects, and it also allows you to detect smaller objects...
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    If I wanted a telescope, how much would I be paying?

    Just to add some more, here's a pic I took with a Kodak DX3900 digicam at 2.2MP and 1/30 second exposure time, through my 8" Dobsonian scope at 47x with a neutral density filter to cut down on the glare. http://members.rogers.com/wong.chris/images/moon_47x.jpg To take this shot, I held the...
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    If I wanted a telescope, how much would I be paying?

    Oops, in the middle of my ranting, I forgot to recommend a telescope! :o Anyway, assuming that you ditch any notions of astrophotography, I would definitely recommend a 6" Dobsonian ($250-350) or an 8" Dobsonian ($350-450), with the 8" being a better value. Both are fairly portable at 30-50...
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    If I wanted a telescope, how much would I be paying?

    Nearly every beginner wants to take astrophotos. Most give up. Why? Because it is hard. To get the really beautiful shots, it's not just a matter of sticking a camera to the eyepiece and taking a photo. First of all, most objects are dim and require long exposures. Digital cameras are pretty...
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    Astronomy people: I'm telescope shopping. Got my eye on one here. Comments?

    If you are a beginner, I would highly recommend a Dobsonian, either 6" or 8". Such a scope will show you numerous examples of each of the major classes of objects, including planets, galaxies, open clusters, globular clusters, and the various types of nebulae. It also allows you to dispense with...
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    Ground based Telescope better than Hubble - uses massive parallel DSP "flexible" mirrors

    It may well have better resolution, but resolution isn't the whole story. Resolution is easy to accomplish (relatively speaking, of course!) through optical interferometry, which stipulates that two telescopes placed x miles apart will have roughly the same resolution as a telescope with an...
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    Need to buy a Telescope!

    I managed to find a used 8" Dob, which includes a 26mm Meade Super Plossl eyepiece and a Rigel Quickfinder, all for $350 Canadian (about $260 USD), which I think is an outstanding deal. For your budget, I would recommend a 6" Dob (used if possible, if only to save some cash for other...
  33. T

    Logitech Contest Winners, Important INFO

    Already got it a few days ago. :D
  34. T

    Will a PAL8045 work on my combo?

    The Alpha PAL8045 mounts through the motherboard holes, and the Gigabyte GA-7VAXP doesn't have the holes. It's a great heatsink (within a couple of degrees of the Swiftech MCX462+ and the Thermalright SLK-800), but unfortunately there's no way for you to use it.
  35. T

    I KID YOU NOT! One of my computers just BLEW UP!

    I'd stop using the computer until you get a new power supply. That can't possibly be good for your parts...
  36. T

    When does the 1/5 PCI divider kick in on the KT3?

    On the KT3 Ultra/Ultra2, the 1/5 PCI divider kicks in at 152MHz FSB, so at 166MHz your PCI/AGP speeds are normal. Sandra is reading the PCI/AGP speed incorrectly.
  37. T

    AMD's thermal protection REALLY works!!!

    Hey, at least you got your heatsink on properly! I wanted to test my unlocking attempts on my 1600+ AGOIA Y and the Alpha PAL8045 was getting be a pain to put on and off, so I bought a Volcano 6Cu just for testing purposes. In my overzealousness to test my unlocking job, I didn't pay attention...
  38. T

    LAN gaming party questions...could someone clarify?

    Or go to www.lanparty.com and read their guide.
  39. T

    LAN gaming party questions...could someone clarify?

    Read this: Ultimate Guide to Hosting a LAN Party
  40. T

    HELP CAN ONLY GET 7380 in SDMark2001SE EDIT Got 9068 now

    Make sure to turn off options like anti-aliasing (FSAA), anisotropic filtering (AF), and most importantly, vertical synchronization (vsync). Having any of them enabled will produce a noticeable hit on your scores, particularly vsync. As a comparison, my 1600+ and GF4 Ti4200 64MB using the 40.71...
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