eos telescope
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GSI Deluxe Lens Cleaning Pen System, Cleans all Camera Lenses, Telescopes, Binoculars, LCD, Plasma, Screens, Watches and Flashes from Dust, Dirt and Fingerprints - Pocket Tool.
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DescriptionThe GSI Lens Pen Cleaning Pen System is a great accessory for any optics user, making it great for maintaining your digital or film camera, binoculars, telescopes, or spotting scopes. The soft retractable brush removes fingerprints, dust and other debris that may compromise your lens. The small, pen-style design easily fits in any camera bag, as the soft brush retracts into pen body to stay clean. Features
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Zoom ratio that is needed for planets using a telescope or a telephoto lens up?
Hello, 1 - I just bought a telephoto lens to do something good of night sky photography. I was wondering if there is a web site to see what zoom level I'm supposed to be able to see Jupiter, Mars, Uranus. 2 - What telescopes are there that can do that function? Note that I have a Canon EOS 400D or better known as the Rebel XTi in the U.S. with the sigma 18-200mm OS.
Hello, Planets are small and bright. You need a long lens to bring out the details. With a telescope of 8 inches in diameter, a portion of f 20 to 40 (the effective focal length of 12 to 30 feet) will give a large enough scale the image to get a usable image on film or CCD sensor. In this slow f number, the exposure of about 1/5th of a second will give you a decent exposure on a CCD. Movies require experimentation and fork obtain a good image detail. Astronomers are using the CCD sensor and a system called "stacking" to get every possible detail. This multiple exposures is the second 1 / 10 or 1/5th and then added two average pixel images and then adds another exhibition and re- averages of the image. A hundred stacks exposues This will give you all the resolution possible with optical instruments. A computer is to do this editing photo. For planetary work with such short exposures, almost all the stars of track assembly will be done. The problem is, once so good planetary images as you want. will be moving to dimmer deep sky objects. This requires an assembly that can accurately track the length of exposure (from 2 to 20 minutes) Now, you're in a new kind of telescope. An equatorial mount of this quality can cost $ 2500 for the mountain alone. Optics (telescope) can cost a similar amount. You say you have a good telephoto lens? Google "barn door" assembly and construction of a to scan the sky with your camera and lens. If you like The challenge, then think about spending the money to capture photons of age, weak. To stretch the goal of beginning to do the basic planetary work with it, you can use "Tele-extenders." Astronomers call these Barlow lenses. If you have a 1000 mm fl lens, a 5x lens or two will give a focal length of 5,000 to 10,000 mm. Jupiter, Saturn, Mars and Venus, all images are used in this focal length. If it is a lens of 90 mm or 100 mm, which will work on the F60 for f100 or less. You will have an exposure of 1 or 2 maybe 5 seconds to get a picture for display on a CCD. The vibrations of any kind will be your enemy in these exposures. Good luck. Thus, in order of cost, this is what you can do. Fractional sky images digital camera lens = long + optional + $ 50 for a tripod and the door stable mounting. $ 1000 for planetary photos very good $ 5,000 for setting a very good deep sky. $ 20,000 for quality optics and tracking of two assembly time. (Professional Degree)
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GSI Deluxe Lens Cleaning Pen System, Cleans all Camera Lenses, Telescopes, Binoculars, LCD, Plasma, Screens, Watches and Flashes from Dust, Dirt and Fingerprints - Pocket Tool.
List Price: |
DescriptionThe GSI Lens Pen Cleaning Pen System is a great accessory for any optics user, making it great for maintaining your digital or film camera, binoculars, telescopes, or spotting scopes. The soft retractable brush removes fingerprints, dust and other debris that may compromise your lens. The small, pen-style design easily fits in any camera bag, as the soft brush retracts into pen body to stay clean. Features
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Opteka RC-4 Wireless Remote Control for Canon EOS Digital Rebel XT, XTi, XSi, T1i, T2i, T3i, 60D, 7D & 5D Mark II Digital SLR Cameras
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DescriptionThe new Opteka RC-4 remote control makes taking group photos easy by allowing you to take pictures away from the camera. The RC-4 allows the selection of either a 2-second shutter delay or instant shutter release. The RC-4 is completely dedicated to the Canon EOS Digital Rebel, XT, XTi, XSi, T1i, T2i, T3i, Elan 7ne, 7n, 7e, T2, K2, 60D, 300D, 350D, 400D, 450D, 500D, 550D, 7D, & 5D Mark II Features
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Remote Shutter Release for Canon Rebel T2i, XT, XTi, XSi, XS, T1i, EOS 550D/1000D/450D/400D/350D/300D
Sale Price: $0.01 |
DescriptionNew Shutter Release Remote Control Cord for Canon Cameras Remote Cord for Canon RS-60E3, 3 Feet (91cm), Black It adds greater convenience and ease in many shooting situations Compatible with: Features
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NEEWER® Timer Remote Control RS-60E3 For Canon XS XSi T1i XT XTi
Sale Price: $14.39 |
DescriptionThe timer can be set anywhere from 1 second to 99 hours, 59 minutes, 59 seconds. The buttons can be operated with a single thumb. The LCD panel can be illuminated. The remote has a stylish and ergonomic design. This timer remote cord allows the camera shutter to be released from a distance and prevents the camera from shaking Compatible with: Specifications: Functions: Features
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Starry Night AstroPhoto Suite - Windows
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DescriptionShare your passion for astronomy with others by capturing beautiful astrophotographs. Starry Night AstroPhoto Suite will help you every step of the way, from identifying objects to controlling your computerized telescope and imaging equipment to capturing and processing images. The AstroPhoto Suite combines essential features of Starry Night Pro astronomy software with MaxIm DL Lite digital imaging software in one comprehensive, easy-to-use package. Your astrophotos will reveal the colors of faint objects your eye cannot detect and details that elude even the best-trained eye in real-time viewing with a telescope. Capture images of celestial objects that rival those from professional observatories. Easily import pictures captured and processed with MaxIm DL Lite back into Starry Night Receive automatic updates of new discoveries and orbital data of satellites, comets and asteroids Features in MaxIm DL Lite - Includes the basic tools you need to produce stunning astronomical images Smooth and sharpen images by filtering out hot spots or dead pixels Calibrate images for crisp shots of the same image Combine up to 4 monochrome images into a single full-color image Supports webcams and DSLRS, including Canon EOS Digital line (1D, 1Ds, 1Dmkll, 1Dsmkll, 10D, 20D, 20Da, 300D/Rebel/KISS, 350D/Rebel XT, D30 and D60); Lumenera; Meade DSI and LPI; Nikon D70; Olympus E1, E-300, E-500; Orion StarShoot Deep-Space Set exposure sequences and durations with auto-save to capture images automatically Starry Night AstroPhoto Suite upgrade includes - DVD-ROM for Windows XP containing Starry Night AstroPhoto, astronomy software plus plug-in for MaxIm DL Lite CD-ROM for Windows 98/ME/2000/XP containing MaxIm DL Lite imaging software Exclusive SkyTheater DVD with over an hour or original movies about space Starry Night Companion, a 192-page illustrated astronomy book New, comprehensive 210-page U Features
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Celestron 52250 80mm Ultima Zoom Spotting Scope
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DescriptionSO)CELESTRON ULTIMA 80 45 DEGREE Celestron’s popular Ultima 80mm Zoom Spotting Scope offers images that are noticeably brighter and sharper than entry level 60mm spotters. The Ultima 80 is a refractor style spotting scope with an Achromatic objective lens. Excellent light transmission is assured by multi-layer anti-reflection coatings on the objective lens as well as on the zoom eyepiece and the BAK-4 prisms. The multi-coated 80mm objective lens delivers 77% brighter views than a 60mm scope, and the built in zoom lens produces sharp images from 20X all the way up to 60X magnification. The Ultima 80 features a sleek, waterproof design and includes a padded soft case with zippers on both ends so the scope can be protected even while mounted on a tripod. Including the eyepiece the Ultima 80 measures just over 18 inches long and weighs about 3.6 pounds. The rubber eyecup can be removed to expose a standard “T-thread” for attaching a camera. I like the 45* angled eyepiece because I can use a shorter tripod to support the spotting scope while viewing or while taking pictures with a small camera attached to the eyepiece. The focus ranges from 27 feet to the horizon with just a few turns of the focus knob. When I fold down the rubber eye cup I can keep my glasses on and see the whole 2 degree field of view at 20X magnification. With my glasses on I need very little focus adjustment while I crank the zoom eyepiece from 20X up to 60X. Sometimes though I like to take my glasses off while observing because the view seems to have just a little more contrast and sharpness. I like the fact that the Ultima 80 gives me a sharp image either way. The drawback of the tradition crown and flint achromatic lens used in the Ultima 80 Zoom Spotting Scope is a bit of false color, also known as blue fringing or chromatic aberration. Blue fringing seems well controlled at 20X magnification, but it becomes increasingly noticeable as I zoom up to 60X. Celestron also offers the Ultima 80ED and the Regal 80 F-ED spotting scopes which use exotic ED glass lenses to virtually eliminate blue fringing and produce the sharpest possible high power views. Shot at 20X zoom at about 20 yards, cropped 50% (Click here to see uncropped) Shot at 20X zoom at about 50 yards, cropped 30% Shot at 20X zoom, uncropped but reduced in size (Click here to see at 60X zoom) Shot at 20X zoom at about 50 yards, cropped 30% Features
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Celestron 93635-A T-Adapter for NexStar 4GT
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DescriptionA T-Adapter allows you to attach your 35mm SLR camera to the prime focus of your telescope or spotting scope. This arrangement is used for terrestrial photography and short exposure lunar and planetary photography. It can also be used for long exposure deep-sky photography when using a separate guidescope.Both a T-Adapter and T-Ring are required to mount a camera to your instrument. Features
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Celestron 52238 C70 Mini Mak Spotting Scope
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DescriptionCelestron C70 Mini Mak 25-75x Zoom Angled Spotting Scope, Black w/ Table Tripod 52238 Features
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