OWL Astronomy Products
Eyepieces, Telescopes, Binoculars, Microscopes
Specials at OWL Services Astronomy Site

| GREAT PRODUCT! | Fantastic Refractor Lens Assembly - 155 mm (6.1 inches) Diameter (5 Elements in 2 Assemblies) f/2.0 to f/3.25 Main Assembly contains an ED Lanthanum Element FULLY MULTI-COATED - Used but in excellent condition. Make a dream refractor - 300 to 500 focal length and 260 mm long. This came from a government camera lens costing thousands! Consider this a fairly easy telescope construction project. Refractor Lens has two assemblies. One is a 155 mm air-spaced triplet lens with an ED Lanthanum element. The second is a 85 mm corrector lens. All lenses fully multi-coated. The 155 mm assembly makes a 190 mm focal length (f/1.25) refractor by itself. This objective assembly has 3air-spaced elements including an ED element. The second assembly in this refractor optics gives a final system of 310 mm to 500 mm focal length (f/2 to f/3.25) Side view of refractor assemblies These lens assemblies came from a government camera that cost thousands to produce. This will make a dream, fast refractor at 6.1 inches (155 mm) and f/3.25 to f/2.0. All elements are fully multi-coated. One of the elements is an ED Lanthanum lens. There are only a VERY few of these available. As they say, when they are gone, they are gone. These elements are packed with care and sent to you with suggested spacing for several different focal ratios. The main  lens element itself will make a fantastic f/1.25  scope. Use that for a real fast CCD camera element. With the corrector, you get a high quality, and still a very fast, f/2.0 to f/3.25 refractor. These assemblies produce 300 to 500 mm focal length. Because of the corrector element, the total length of the refractor itself is only 250 mm long or a little longer. This is a fast lens system that will make a great deep-sky telescope and "rich field" scope. Would take fantastic deep-sky photos! To construct this telescope you need to provide a tube and supports for the two assemblies. You also will need to support these assemblies in such a way that they can be aligned the first time. You need a refractor focus mount. The resulting job is much easier than grinding a mirror, but not a trivial job. A 6 inch refractor is usually difficult to mount, but the short tube length makes this fairly easy. Contrast in very important to bring out faint deep-sky features and fine detail. This refractor has advanced multi-coated optics and the ED element in the triplet. Shipping by mail on this item within the US is $15.95. We do not plan to ship these outside the United States. Email us about to discuss this if you wish. 6 Inch Refractor Lens System Price Only: $269.95.

Great Sale on lAST Konus Evemt Binoculars  These binoculars are excellent, compact roof-prism binoculars for nature and sports use. Both the Event series and the Audax series are on sale. These sale prices are limited to those currently in stock ONLY!

SALE PRICE!! Giant Binoculars 20X80 - New Model. These are listed at a great price. It also is our policy to test and certify every pair of binoculars that leave our shop. These binoculars have BAK-7 prisms and good anti-reflection coatings. Such heavy and powerful binoculars should normally be used on a tripod. A sturdy binocular adapter is included with these binoculars. SALE PRICE: $69.95!! Although our cost on these has gone up 20%, we have kept the new price as low as possible - STILL LOW.

Sale Konus Refractor Telescopes  We have added a series of Konus refractor telescopes to our web site. These are excellent, especially at our sale price, and include RA motor drives to make them easy to use. Check out these sales NOW! These prices are only on the ones currently in stock.

SALE on Multiple Eyepiece Holder. We added a holder that holds three 1.25" (31.75 mm) eyepieces at one time, and it is on sale now! This makes it easy to switch between powers. That is especially nice when you have a DOB because you are not looking for an eyepiece while the object moves out.

GREAT SALE PRICE!! Giant Binoculars 20X60 - New Model. These are listed at a fantastic price. It also is our policy to test and certify every pair of binoculars that leave our shop. These binoculars have BAK-7 prisms and good anti-reflection coatings. Such heavy and powerful binoculars should normally be used on a tripod. A sturdy binocular adapter is included with these binoculars. SALE PRICE: $38.95!! Although our cost on these has gone up 20%, we have kept the new price as low as possible - STILL LOW.

Microscope Objective 100X Oil Immersion.  We have an great price on an excellent 100X oil immersion objective. This will give you up to 2000X using a 20X microscope eyepiece (1000X with a 10X eyepiece. You would be very pleased with the quality of these. At our prices these can be used for home schooling as well as college and high school laboratories. SALE PRICE: $36.95!!

Check out our great price on a VERY well equipped Konus reflector! We believe you will be very happy with these scopes! [CLICK HERE for great price]