SV48P 102mm Achromatic Refractor 2.5" RAP Dual-Speed Focusing Telescope Set for Visual Observation
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102mm Large Aperture
The SV48P refractor telescopes for astronomy are equipped with a 102mm large aperture. When watchers observe the planet or galaxy, it is helpful to enhance the brightness of observation and increase the observation efficiency. Also, large objective lens refractor telescope is designed with high resolution; good light collecting ability; f/6.5 focal ratio; imaging brighter.
F/6.5 Short Focal Ratio
The focal ratio of the refractor telescope is f/6.5. Compared with the fast f/4 to f/5 ratio, and slow f/11 to f/15, middle f/6.5 can provide larger field of view, collect more light and brighter image. The observation target is clearer and easier to observe; very useful for taking wide-angle celestial photos and is more suitable for observing nebulae and galaxies.
Dual-speed Focusing
The fast focus allows you to quickly move the focus wheel to roughly focus on your target; while slow focus adjusts focus more finely for optimal image clarity. Just to experience the smooth operation and precise adjustability.
Use with SV231 Chromatic Aberration Correction Filter
Chromatic aberration control can ensure stunningly sharp and realistic images.
Visual Observing Combination
You can use the refractor telescope with diagonal, eyepiece and finderscope to observe the planet.
102mm Large Aperture
The SV48P refractor telescopes for astronomy are equipped with a 102mm large aperture. When watchers observe the planet or galaxy, it is helpful to enhance the brightness of observation and increase the observation efficiency. Also, large objective lens refractor telescope is designed with high resolution; good light collecting ability; f/6.5 focal ratio; imaging brighter.
F/6.5 Short Focal Ratio
The focal ratio of the refractor telescope is f/6.5. Compared with the fast f/4 to f/5 ratio, and slow f/11 to f/15, middle f/6.5 can provide larger field of view, collect more light and brighter image. The observation target is clearer and easier to observe; very useful for taking wide-angle celestial photos and is more suitable for observing nebulae and galaxies.
Dual-speed Focusing
The fast focus allows you to quickly move the focus wheel to roughly focus on your target; while slow focus adjusts focus more finely for optimal image clarity. Just to experience the smooth operation and precise adjustability.
Use with SV231 Chromatic Aberration Correction Filter
Chromatic aberration control can ensure stunningly sharp and realistic images.
Visual Observing Combination
You can use the refractor telescope with diagonal, eyepiece and finderscope to observe the planet.
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