Top Selling Skymaster Binoculars
- Learn how to create impressive reports for school or business, share ideas and projects with classmates and colleagues
- Create budgets and track expenses, organize and manage class work
- Create professional-quality presentations, organize projects in notebooks
- Manage sales and invoicing for your small business create stunning e-mails using Outlook?s graphics library
Black Polymer Solar Filter For Telescope, Fits Etx90, C-90, Questar 3.5, Wm. Optics Zs80Ii Ed, Orion Obs. 70 & Astroview 90, Orion Explorer 90
- 108mm\4.25" Black Polymer Solar Filter for 90mm\3.50" Telescopes. This filter should fit the following telescope models: C-90, ETX 90, Questar 3.5, Wm. Optics ZS80 II ED or telescopes of similar tube diameter. Part #B4250.
- Please read carefully: 108mm\4.25" is the diameter of the filter. The filter fits like a cap by friction. To be absolutely sure that the filter will fit, please measure the outer diameter of your instrument and make sure that it is not larger.
- Black polymer is the most common filtering material for observing sunspots and granulation, through telescopes and binoculars. The sun will appear in a natural orange color when viewed through your telescope using this filter.
- This is a high quality product of Thousand Oaks Optical, Arizona. A manufacturer of safe solar filters for over 30 years. Words of the producer: "Stronger than Mylar with the filtering properties protected within the substrate. Guaranteed five years."
- WARNING: ALWAYS MAKE SURE THE FILTER IS WELL ATTACHED TO THE TELESCOPE/BINOCULARS/CAMERA. IN CASE NECESSARY, USE STICKY TAPE TO SECURE IT. NEVER OBSERVE SUN WITHOUT A PROPERLY ATTACHED FILTER!
- Water-resistant with progressive design
- Features center focus, BAK-4 prisms, green-coated lenses and retained lens caps
- 7x50 power
- 6.6 degree field view range
- 116m field of view at 1000m
- Connect your peripheral devices like mice, keyboards and more to your portable electronics such as cell phones, eReaders, tablets, and laptops with this micro USB OTG (on-the-go) to USB 2.0 adapter.
- Functions depended on the device's operating system and applications.
- Operate small USB peripherals by plugging in the adapter cable which transforms your mobile or portable device into a USB capable unit.
- Adapter allows you to use standard USB devices with micro 5-pin oriented electronics.Connectors: Standard USB 2.0 port; Right angle micro USB OTG connector.
- Color: Black. Length: 4.5-inches.
Solid Brass With Leather Spyglass 6" - Brass Spyglass - Small Hand Held Telescope - Nautical Theme Gift
- Overall dimensions: 6" L x 1.5" W x 1.5" H
- Pictures does not do this item justice - Looks much better in person
- Fast FREE shipping to the lower 48 US States for orders over $39
- All items made by us - No middleman - 100% Satisfaction Guarantee
- Shop our amazon store --- Over 1000 different nautical items available
Amscope B340-Dk-Led Siedentopf Binocular Compound Microscope, 40X-1000X Magnification, Darkfield, Led Illumination, Abbe Condenser, Double-Layer Mechanical Stage
- Compound microscope provides high magnification for biological use and educational applications
- Siedentopf binocular head with pair of 10x widefield eyepieces with 48 to 75mm inter-pupillary adjustment, fixed 30-degree vertical inclination to reduce eye and neck strain, and 360-degree rotation capability to provide a more comprehensive view and enable sharing
- Reverse-mounted nosepiece with 4x, 10x, 40xS (spring), and 100xS (spring, oil) DIN achromatic objectives that provide color correction of magnified images
- Brightfield and dry darkfield, LED illumination, 1.25 NA Abbe condenser with iris diaphragm for clear examination and light control, and dry darkfield condenser with 0.7 to 0.8 NA
- Double-layer mechanical stage, with 1.0mm stage divisions, locks slide into place and provides precise slide manipulation along the X- and Y-axis to allow coordinates to be recorded, enabling the viewer to return to a specific location on the slide
- Machine wash and dry
- Please see measurement chart.
- Regular, standard fitting women's tee.
- Snap Shot Adapter
- Field Bag
- Eyepiece Cover
- Objecive Lens Cover
- Lift Carrying Strap
- Built in angled rotating eyepiece allows for many different viewing positions ( rotates left to right)
- Variable zoom power from 15-45x for different spotting magnifications with long eye relief and foldable eyecups
- Fully coated optics for clear and crisp images
- Protected in rubber armor that absorbs shock, and a sunshade with attached lens cover
- Include extendable panhead tripod and soft carrying case
- 20X-40X Magnification Power Pocket Zoom Microscope Optics Lens With LED Light
- New item with high quality
Fosmon Dura-Fro Ultra Slim Fit Case Protective Shell Back Cover For Samsung Galaxy Notepro 12.2 / Tabpro 12.2 Inch Tablet - Retail Packaging (Clear)
- Compatibility: Samsung Galaxy NotePRO 12.2" / TabPRO 12.2"
- Protective back cover keeps your tablet safe from scratches
- Made with very durable and flexible Thermoplastic Urethane plastic
- Has quick access to all of the Galaxy NotePRO ports, slots and features
- Slim fitting design protects your NotePRO while adding minimal bulk
- A portion of proceeds supports breast cancer research.
- 50-sheet capacity.
A Treatise On Diseases Of The Eye; For The Use Of General Practitioners. To Which Is Added, A Series Of Test Types For Determining The Exact State Of Vision. By Henry C. Angell, M.D.: Vol. 1
- Title - Colliding Galaxies Captured by Hubble Telescope
- Description Source - NASA
- Year - 11/04/1999
- SKU - NAS-0164
- Description - The larger and more massive galaxy is cataloged as NGC 2207 (on the left in the Hubble Heritage image), and the smaller one on the right is IC 2163. Strong tidal forces from NGC 2207 have distorted the shape of IC 2163, flinging out stars and gas into long streamers stretching out a hundred thousand light-years toward the right-hand edge of the image. Computer simulations, carried out by a team led by Bruce and Debra Elmegreen, demonstrate the leisurely timescale over which galactic collisions occur. In addition to the Hubble images, measurements made with the National Science Foundation's Very Large Array Radio Telescope in New Mexico reveal the motions of the galaxies and aid the reconstruction of the collision. The calculations indicate that IC 2163 is swinging past NGC 2207 in a counterclockwise direction, having made its closest approach 40 million years ago. However, IC 2163 does not have sufficient energy to escape from the gravitational pull of NGC 2207, and is destined to be pulled back and swing past the larger galaxy again in the future. The high resolution of the Hubble telescope image reveals dust lanes in the spiral arms of NGC 2207, clearly silhouetted against IC 2163, which is in the background. Hubble also reveals a series of parallel dust filaments extending like fine brush strokes along the tidally stretched material on the right-hand side. The large concentrations of gas and dust in both galaxies may well erupt into regions of active star formation in the near future. Trapped in their mutual orbit around each other, these two galaxies will continue to distort and disrupt each other. Eventually, billions of years from now, they will merge into a single, more massive galaxy. It is believed that many present-day galaxies, including the Milky Way, were assembled from a similar process of coalescence of smaller galaxies occurring over billions of years. This image was created from 3 separate pointings of Hubble.
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- Side parallax riflescope specifically engineered for .223 caliber rifles
- Multigrain BDC chart with 50 grain, 55 grain, and 62 grain options
- Precision 3G glass-etched reticle; fully coated optics
- Side parallax adjustment; target-style windage and elevation adjustments
- Waterproof, fogproof, and shockproof construction; limited lifetime warranty
- The DG II extension tubes have no optics. They are mounted in between the camera body and lens to create more distance between the lens and film plane. By moving the lens father away from the film or CCD sensor in the camera, the lens is forced to focus much closer than normal. The greater the length of the extension tube, the closer the lens can focus.
- It is with electronic contacts,which make it support automatic focusing,automatic exposure,etc. This tube is with 1/4" tripod mounts. 2 caps (front and rear caps) included to protect the mounts.
- Specification: Diameter of the tubes: Approx. 62mm Tube length: 25mm Material: Metal Suitable for: All EOS EF / EFS lens and camera with EF/EF-S mount
- Package including: Fotga metal automatic macro extension tube 25mm DG II X 1 cap x 2 (in origial package)
Skymaster Binoculars Description
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