Starting your astronomy journey with the ETX 90 is an excellent choice. This will allow you to center and focus using an eyepiece in the top port (which is much easier than focusing in the camera viewfinder) and then just flip the mirror down to take a perfectly focused image. Arkansas Sky Observatory Likely, the very package that YOUR telescope came in - the catalog that advertised it.....the instruction manual that came with it....are ALL laden with glorious full-color photographs of celestial splendors. I soon discovered there was not a lot of ETX information available online at that time, so I put up a web page with some personal comments and photos. Guiding is NOT necessary through the telescope. 2) A piggyback camera MOUNT; although Meade does not make a piggyback mount for either the ETX 125 or the ETX 90, the brackets are available. In such photography, you may chose to "not guide" (for regular or relatively short-focus lenses up to 135mm and for shorter exposures - say less than 8 minutes) or "guide" (for telephoto lenses and any shot that you may take that exceeds 10 minutes, regardless of the lens used). 4) METEOR SHOWERS - You really do not even need a piggyback arrangement for this, but only a standard camera lens and exposures of from 10 to 20 minutes with NO tracking. 2) BRIGHT COMETS - For really long comets, your standard 50mm lens will work with exposures of only 5 to 10 minutes; the comet will move slightly different than the stars so for any longer exposures, it will be necessary to TRACK ON THE COMET through your telescope! The newer computer controlled ETX 90 models already have the necessary controls. Deluxe Astrophotography Kits (1.25") for Canon, Deluxe Astrophotography Kits (1.25") for Nikon, Digi-Kits for Nikon (Point & Shoot Cameras), Deluxe Astrophotography Kits (1.25") for Sony, Astrophotography Kits (1.25") for Olympus, Deluxe Astrophotography Kits (1.25") for Olympus, Deluxe Astrophotography Kits (1.25") for Pentax, Deluxe Astrophotography Kits (1.25") for Fuji, Canon EOS / Rebel Basic Astrophotography Kit (1.25"), Visual Back for ETX 90/105/125 & C90 Telescope Models, T-Rings for Mirrorless Interchangeable Lens (MIL), T-Minus Short Format for Mirrorless Interchangeable Lens (MIL), © 2020 - Copyrights CNC Supply Inc. All rights reservered. That time frame was before the computerized ETX … The Visual Back has a standard 1.25" eyepiece port on the back end. In late 1998 I attached a Pentax Spotmatic 35mm SLR with a 230mm telephoto to the ETX using the JMI Piggy-back Camera Mount and used this setup for some long duration (several minutes) astrophotography of deep sky objects. Is Meade ETX 90 suitable for astrophotography? Astrophotography with the Meade ETX-90. The ETX was guided using the Blessing Microstar Dual Axis Drive Corrector and monitored with the Celestron Guide Eyepiece. It has the 497 controller, a meade tripod,a meade 26 mm eyepiece, and looks almost new. Image the "western movies" you have seen with the wagon-drawn old traveling photographer who sets up his box camera, exploding flash and hood - he always has one hand over his head, and the other holding his "cabel release!" View Setup Diagram (Note: Diagram shows all 3 ETX kit versions) The included parts will allow you to couple your SLR or DSLR camera to the ETX rear photo port (or the top eyepiece port) for "prime focus" or "eyepiece projection" astrophotography or nature shots. ETX Astrophotography Kit for Meade ETX 90/105/125 & Canon EOS SLR/DSLR, The minimum purchase order quantity for the product is 1, (Note: Diagram shows all 3 ETX kit versions). The parfocalizing ring lets you make an eyepiece in your top port "Parfocal" with your camera. 1) A motor-driven TELESCOPE operated in very dark sky conditions; for this, the portable ETX and similar scopes are ideal with their internal (and auxiliary DC) power source. ETX Astrophotography Kit for Meade ETX 90/105/125 & Canon EOS SLR/DSLR. The telescope as a whole works well, and the planetary images would mesmerize most beginners. Therefore, use your standard 50mm lens or no more than say a 135mm lens and an exposure time of about five (5) minutes MAXIMUM. October 4, 2009. by Trevor Freeman. The short, stubby tube on its sturdy (yes, I said "sturdy" for all you anti-plastic protestors out there.....all things considered and all clamps securely locked, the ETX is one of the most steadfast telescopes on the market today!) In prime focus photography, the telescope (say an f/15 ETX) becomes the CAMERA LENS; with the standard camera lens removed with the ETX 125 for example, and the camera attached at the rear of the telescope you have essentially a 1,900mm telephoto lens! We have a lot of inquiries concerning the suitability of the ETX telescope for deep sky photography; the many published and beautiful photographs of the moon, sun and planets taken through ETX and other compact telescopes eludes to the fact that these telescopes CAN "do" astrophotography. All major modern cameras accept these, and some have to be special ordered; nonetheless, you cannot do photography without one. But - in the harsh, hard reality of the proverbial "nutshell" - these telescopes ARE not suited for long-exposure PRIME FOCUS astrophotography. The fainter and smaller a comet, the longer both the focal length of your lens and the time of your exposure; the photograph of Halley's Comet - even with a huge 6" f/2.8 aerial lens required a very long time to capture the full extent of the comet's tail (Figure 6). By "fast" I mean a high ASA rating, at least 400 ASA but higher if possible; all the Kodak films provide good celestial images and true colors with rich reds and blues, ideal for deep sky subjects; however, ASA 400 Kodacolor is about as "fast" as you can go with them. In September 1996, I purchased a Meade ETX Astro Telescope. The sky is your limit regarding piggyback photography, with everything from comets and meteors to the Orion Nebula and Andromeda Galaxy (Figure ). I was browsing through a local Sam's store a few years ago when I saw the ETX90-M below on sale for $250. Fuji makes much faster films, but these tend to have a bit of a "greenish" cast to the them and are not as well balanced for celestial objects. 1 Comment. 3) CONSTELLATIONS - Always use either a WIDE ANGLE (28-35mm) or your normal 50mm lens to photograph constellations; since most were originally outlined with the naked eye, most key stars are bright and thus require only about five (5) minutes of exposure to capture the outline.

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