Omni Telescope
Omni Telescope
which one is better?????????
A Celestron Omni XLT 127 SCT Telescope or a Bushnell Northstar 5" Maksutov Cassegrain GoTo Telescope.
the goto mount on the bushnell will help you find object once you get it properly aligned. But be warned, I have yet to hear anyone who is serious about astronomy say anything nice about bushnell's scopes, myself included. They are poorly constructed, have little to no instructions, and come with very shoddy finderscopes and eyepieces. I'd go with the celesteron if I were you.
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Celestron Omni 2X Barlow Lens List Price: $42.99 Sale Price: $33.89  |
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2/8/200615-19-32... |
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Celestron 93317 Omni Series 1.25" (6mm) Eyepiece List Price: $33.99 Sale Price: $19.99 |
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This Omni series 6mm 1.25" Plossl eyepiece includes blackened lens edges to minimize internal reflection and maximize contrast. Every air-to-glass optical surface has a multi-layer coating group for the highest possible light transmission. |
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Celestron Omni Series 1-1/4 4MM Eyepiece List Price: $33.99 Sale Price: $29.39 |
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If you are looking to move up to a higher quality eyepiece the Omni series provides more enhanced features in a wider selection of focal lengths. Celestron designed this series with the finer points in mind so you, the user, can benefitfrom the features that make this series unique. The Omni is a 4 -element premium symmetrical Plossl optical design. Features include blackened lens edges to minimize internal reflection and maximize contrast, multi-layer coating group oneach lens surface to maximize light transmission and contrast, and each Omni goes through a two-step anodizing process to prevent reflection from the top eyepiece barrel, unlike most other manufactures who use reflective surfaces. Threaded barrels accept 1-1/4" Celestron thread-in filters. |
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Celestron Omni XLT ® 150 - Celestron 31057 List Price: $797.95 Sale Price: $429.00 |
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Celestron Omni XLT ® 150 - Celestron 31057 |
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Omni Series Eyepiece 1 1/4" 40mm List Price: $79.95 Sale Price: $39.95 |
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If you are looking to move up to a higher quality eyepiece the Omni series provides more enhanced features in a wider selection of focal lengths. Celestron designed this series with the finer points in mind so you, the user, can benefitfrom the features that make this series unique. The Omni is a 4 -element premium symmetrical Plossl optical design. Features include blackened lens edges to minimize internal reflection and maximize contrast, multi-layer coating group oneach lens surface to maximize light transmission and contrast, and each Omni goes through a two-step anodizing process to prevent reflection from the top eyepiece barrel, unlike most other manufactures who use reflective surfaces. Threaded barrels accept 1-1/4" Celestron thread-in filters. |
Shaft Encoders: Industrial Equipment for Better Performance
Used in industrial controls, robotics, and other electro-mechanical devices, a rotary encoder or shaft encoders are responsible for converting the angle at which a shaft is positioned into digital code which computers understand. This makes industrial devices perform more precise operations. Examples of these industrial devices would be flood gates, telescopes, and many more.
There are two types of shaft encoders considered in industrial engineering: absolute and incremental. The difference between the two is that absolute encoders create a distinct digital code for one angular shaft of axle, whereas an incremental rotary encoder has two outputs that can be either mechanical or optical.
Some examples of mechanical or optical encoders include:
- Wireless industrial encoders which make use of a real time wireless interface and available versions include absolute and incremental encoders;
- Express encoders which are encoders which have six different styles;
- Omni encoders that has a resolution which can be programmed anywhere from 1 to 1,000 counts per turn;
- Linear transducers which are cables that provide linear position and speed information;
- Heavy duty encoders for harsh environmental situations, and
- Linear quadrature encoders for motion-control applications.
Before the digital encoders, there were rotational binary encoders that convert angular information into binary code output. Now, the use of digital rotary encoders in the industry is very valuable not only because they ensure the equipments operate with precision, but also because they provide security for industries in running their operations. Timing and the right positioning of axles can affect the way industrial equipments work. The correct timing and alignment of these shafts are a crucial basis for the operations to run smoothly and without any problems.
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