Description A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of any eyepiece with the same barrel size that you already own. In other words, 3 eyepieces offer 6 magnification choices with the addition of a focal extender. Secondly, most of […]

Description A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of any eyepiece with the same barrel size that you already own. In other words, 3 eyepieces offer 6 magnification choices with the addition of a focal extender. Secondly, most of […]

Description A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of any eyepiece with the same barrel size that you already own. In other words, 3 eyepieces offer 6 magnification choices with the addition of a focal extender. Secondly, most of […]

Description The Explore Scientific 2X Focal Extender (2.0-inch O.D.), accepts both 1.25-inch O.D. and 2.0-inch O.D. format eyepieces and camera adapters. Fully EMD-Coated on all air-to-air lens surfaces, with all lens elements edge-blackened to produce superior contrast, this focal extender adds some real versatility to your telescope accessory line-up. First of all, it allows you […]

Description This adapter allows you to attach the 3-inch 0.7X Field Flattener Focal Reducer (FFFR507X-00) on optical tubes with a 2-inch focuser. This adapter also allows you to adapt the 3-inch Diagonal to a 2-inch focuser draw tube. The adapter is threaded to accept 2-inch filters. Specs Item Number 510364 Weight .15lb/.08kg Diameter 76mm Height […]

Description Explore Scientific Adapter to allow the use of the FFFR507X-00 3″ 0.7x Corrector on the 2.5″ Hex focuser Specs Item Number 510366 Warranty Limited Warranty is one year, which converts to the Explore STAR Transferable Extended Life of the Product Warranty when product is registered within 60 days of purchase. Click Here to register. […]

Description The Explore Scientific 3X Focal Extender (2.0-inch O.D.), accepts both 1.25-inch O.D. and 2.0-inch O.D. format eyepieces and camera adapters. Fully EMD-Coated on all air-to-air lens surfaces, with all lens elements edge-blackened to produce superior contrast, this focal extender adds some real versatility to your telescope accessory line-up. First of all, it allows you […]

Description This adapter replaces the M42x0.75 Adapter for CCD Camera that comes standard with the Explore Scientific 3-inch Field Flattener/0.7x Focal Reducer. Must be purchased separately from the FFFR. Specs Item Number M48-0750.7x Weight .15lb/.08kg Warranty Limited USA One Year Warranty when product is registered within 60 days of purchase. Click Here to register. CA […]

Features Increases the focal length by a factor of 1.4 The focal length of the R200SS is increased to 1120 mm (F5.6) Interior matte surface prevents reflections Special anti-reflective AS coating 99.9% light transmission per lens surface Construction: 4 elements in 3 groups Weight: 245 g Description The best focal extender designed for Newtonian telescopes […]