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Alstar 1.25" 7.5mm 58-Degree Planetary Eyepiece for Telescope
Alstar 1.25" 7.5mm 58-Degree Planetary Eyepiece for Telescope
Primarily made for planetary observation, these 1.25" fully multicoated eyepieces give maximum detail and definition across the entire 58 degree field of view. Alstar Optics Planetary eyepieces are probably amongs the most versatile eyepieces available today. Despite its many possible applications no compromises have been made in the performance. The eyepieces are perfectly suited for observing planets, the moon, deep sky objects as well as for projection photography with DSLR or compact digital cameras. A great value, these eyepieces are exceptional at nearly eliminating lateral color aberration and light scatter often associated with more expensive eyepieces that are better suited for deep space objects. Each eyepiece has 5 lens elements in 3 groups - with the exception of the 20mm eyepiece which has 4 groups.Experienced observers will truly appreciate such generous eye relief at significant magnifications. Read more Features of the Planetary Alstar Optics Eyepieces Lens Layout Each eyepiece has 5 lens elements in 3 groups. Experienced observers will truly appreciate such generous eye relief at significant magnifications. Exceptional at nearly eliminating lateral color aberration and light scatter while retaining excellent sharpness, contrast and definition. Observing the Moon and the Planets Designed primarily for planetary observation (Moon, Jupiter, Mars and Saturn and more) but great for deep sky objects too. Comfortable eye relief averaging 16mm across the series. Threaded for standard 1.25- inch astronomy filters. Perfect Viewing Comfort 1.25" fully multicoated eyepieces give maximum detail and definition across the entire 58 degree field of view. High transmittance and contrast ratio with least lateral chromatic aberration and scattering phenomenon. Eye Relief and Barrel Size Alstar Optics Planetary eyepieces have a long eye relief of 16mm. The eyeguard is adjustable freely for optimum viewing comfort. Wide 58- degree Field of View (FOV) in 2.5mm to 25mm focal lengths. Equipped with an eyepiece barrel which could be rotated for adjustment and a convertible rubber ring for eyes. Read more Image Quality Many tests have demonstrated that the Alstar Optics Planetary eyepieces have an excellent optical performance. Compared with similar eyepieces the Alstar Optics eyepieces are on the same high level of quality. The eyepieces are sourced directly from the factory as A-grade products. The Alstar Optics eyepieces are the latest evolutionary step of this eyepiece design. Some other eyepieces may look similar, but they do not necessarily reach the same high performance. Alstar Optics Planetary eyepiece has an excellent imaging quality well beyond common PL eyepieces. Every surface of lens is coated repeatedly to ensure high contrast ratio. Read more NEVER EVER MISS IT! You can get the same level quality products in our store at half the p rice of the market now.
- Wide 58- degree Field of View (FOV) in 2.5mm to 25mm focal lengths. Equipped with an eyepiece barrel which could be rotated for adjustment and a convertible rubber ring for eyes.
- Designed primarily for planetary observation (Moon, Jupiter, Mars and Saturn and more) but great for deep sky objects too. Comfortable eye relief averaging 16mm across the series. Threaded for standard 1.25- inch astronomy filters.
- 1.25" fully multicoated eyepieces give maximum detail and definition across the entire 58 degree field of view. High transmittance and contrast ratio with least lateral chromatic aberration and scattering phenomenon.
- Each eyepiece has 5 lens elements in 3 groups. Experienced observers will truly appreciate such generous eye relief at significant magnifications. Exceptional at nearly eliminating lateral color aberration and light scatter while retaining excellent sharpness, contrast and definition.
- Obtain higher magnification with short focal length. It could bring you a better observation experience in a comfortable situation with high-contrast imaging. A cost-effective eyepiece, you will obtain more details that you have never seen before.
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