farpointastro.com的 10 大竞争对手

agenaastro.com

get the best telescope and astrophotography gear with north america's highest-rated telescope store. free us shipping on orders over $25!

highpointscientific.com

high point scientific is a leading retailer of quality telescopes and accessories for beginner, intermediate, and advanced astronomers alike. celestron, meade, and tele vue are a few of the industry leading brands high point carries.

admaccessories.com

The Telescope Accessories Product Archive for ADM Accessories - Including: Dovetail Bars, Camera Mounts, Counterweights, Rings, Saddles, Side-by-Sides...

cassinitelescopes.com

cassini miami, florida sells k-9 laser binoculars, telescopes, reflectors, refractors, dobsonians, brass, accessories, eyepieces, spotting scopes, binoculars, binocular cameras, golf scopes, gps devices, microscopes, and optical gifts.

davidastro.com

Discover our telescopes, cameras, and accessories. Providing expert advice and exceptional customer service to help you explore the wonders of the night sky.

takahashiamerica.com

The TOA series is a member of Takahashi’s line of triplet refractors.  In the TOA design, three lens elements are used, with the front and rear constructed from ED glass.  The resulting system achieves a high level of apochromatic performance for both visual observation and imaging.  Takahashi engineers have a undertaken a complete redesign of the triplet system, completely eliminating spherical aberration while minimizing axial chromatic aberration in the visible light spectrum.   In typical apochromatic designs, the elimination of chromatic aberration is usually at the expense of increasing spherical aberration at various wavelengths.  However, with the TOA series, the focal shift across the entire visible spectrum from 436 nm up to 656 nm is less than +/- 0.01 mm.  This is less than 1/100 the aberration of a typical apochromatic design.   TOA-130NS   The TOA-130NS is a 130 mm apochromatic f/7.7 refractor with a focal length of 1000 mm.  It features a retractable lens hood and 2.7 inch rack and pinion focuser.  A complete line of flatteners, reducers and extenders are available, including the 67-series flattener, which provides a 90 mm imaging circle.   TOA-130NFB   The TOA-130NFB is a 130 mm apochromatic f/7.7 refractor with a focal length of 1000 mm.  It features a retractable lens hood, a 4 inch rack and pinion focuser with a 7:1 fine focuser, and a 360-degree camera angle adjuster.  A complete line of flatteners, reducers and extenders are available, including the 67-series flattener, which provides a 90 mm imaging circle.    Please note: mount, tripod, tube holder and finder sold separately.   Included in the box: Optical Tube Assembly Extension tube (F) TKP31005 50.8 Sleeve TKP00113 Coupling (S) TKP00103 Ocular adapter (31.7mm) TKP00101 Ocular adapter (50.8) TKP27110 Extension tube (L) TKP31112   TOA-130NS System Chart TOA-130NS Reducer System Chart TOA-130NS 35 Flattener System Chart TOA-130NS Extender TOA System Chart TOA-130NS R

primalucelab.us

Shop powered by PrestaShop

mightexsystems.com

Multiple LED sources can be efficiently combined into a single output beam, and offer major advantages such as long life-time, easily tunable spectrum, high power stability, and ultra-fast switching (on the microseconds level) without using moving mechanical components. Multi-Wavelength Collimated LED Sources find many applications in microscopy, spectroscopy, chemistry, and other physical science application, where light in different wavelengths can be combined into a single collimated output beam that is often further coupled into an optical systems. The highly collimated multi-wavelength output beam is suitable for working with lenses, filters, dichroic, mirrors, and many other optical components, while simultaneously allowing the user to tailor the spectrum to best suit the specific application requirements. A Multi-Wavelength Collimated LED Source can be constructed by combining the following components (see Assembly Guide for more details): Mightex collimated LED sources, and; Mightex multi-wavelength beam combiners Key Features: Custom reconfigurable wavelengths and geometry 2 to 8 (or more) LED emitters, UV/VIS/NIR No moving parts Collimated beam, with optional lightguide adapter Optional microscope adapters

astrogarten.shop

Astrogarten Shop - Nils Kloth