Feature
●Wide field of view - between 58° and 65°: What does an extended astronomical object look like through the eyepiece, as compared to a standard Kellner or Ploessl? Imagine you are observing the Lagoon Nebula with an 8" f5 Newtonian telescope: While in the standard eyepieces the object extends well beyond the field of view, any of these wide angle eyepieces (around 19mm) will show you the entire object. This is because these eyepieces offer 20-30% larger fields of view than a standard eyepiece.
●Twist-up eyecups: The eyepieces have solid and infinitely adjustable eyecups, making it easy for you to choose your most comfortable viewing distance - ideal for long intensive observing sessions. The various models have focal lengths of 16mm, 19mm and 27mm and are also ideal for spectacle wearers.
●Corrected field curvature for the best observing: Premium flat field eyepieces offer corrected field curvature, normally one of the flaws in optical imaging. This correction lets you use the entire field of view. You will observe an image with superior sharpness - not just in the centre, but right out to the outer edge. These eyepieces let you observe natural objects just as they appear in reality.
●Look great and last a lifetime with their anodized housings: These premium flat field eyepieces also look classy - the entire housing is anodized aluminium. This makes the material particularly resistant and durable. A rubber coating also provides you with a handy grip.
●Multi-coating and crystal-clear images: The large eye lenses will impress you at your very first glance at these eyepieces. The crystal-clear images you then see when looking through the eyepiece will then impress you even more. The high quality of the 5-6 lens elements and the high light transmission give you an image of high colour purity and excellent contrast.
Description
Alstar premium flat field eyepieces are sharp across the entire image and have a flat field of view right out to the edge. A combination of excellent optics and premium coatings make these eyepieces a real hot tip.
Twist-up Eyecups
The eyepieces have solid and infinitely adjustable eyecups, you can choose the most comfortable viewing distance - ideal for long observing sessions.
High Quality Anodized Aluminum
These eyepieces also look classy - the entire housing is anodized aluminium. This makes the material particularly resistant and durable.
Multiple Magnifications
The premium flat field eyepieces are available in various focal lengths -27mm, 19mm, 16mm, and 8mm. So they cover a wide range of magnifications.
Non-slip Rubber Ring
The product is designed with a ring of non-slip rubber coating, and provides you with a handy grip.
Multi-coating and Crystal-clear Images
The high quality of the 5-6 lens elements and the high light transmission give you an image of excellent contrast. When you observe the planet Jupiter the image is not just good, but shows an incredible wealth of detail. You will see significant differences in the structures of the various bands.
Wide Field of View - Between 58° and 65°
Imagine you are observing the Lagoon Nebula with an 8" f5 Newtonian telescope: While in the standard eyepieces the object extends well beyond the field of view, any wide angle eyepieces will show you the entire object. This is because these eyepieces offer 20-30% larger fov than a standard eyepiece.
