Learn about USB 3.0, the most used data transfer standard for computer peripherals. Explore USB 3.0 history /generations, connector types and protocols.

Our knowledge is only surpassed by our passion for this wonderful hobby we all love so much. We truly believe our team is a cut above the rest and we look forward working with you!

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PrismMirror

Our team of product advisors know what it’s like to buy astronomy equipment for the first time. There are so many types of telescopes and accessories that the process can be overwhelming enough without having to worry about pushy salespeople trying to make a big commission.

MSE Supplies offers a wide range of high-quality Laboratory Spectrometers and Spectrophotometers, including UV/VIS, NIR and Fluorescence Spectrometers at ...

It can be difficult to choose the right level of magnification. We recommend you to consult your eye care professional or a product specialist to properly fit your needs before purchasing an optical magnifier. Or, email us at info@optelec.com and we will provide you with more information and/or put you in contact with an eye care professional in your area.

USB Camera is a cutting-edge mobile app that allows you to connect your Android device to a USB WebCam or video capture card via USB-OTG.

45degree mirror

Jul 11, 2021 — If white light passes a glass prism it gets refracted twice, first when the light strikes the prism the light ray gets deviated from the air to ...

TrueMirror

A circular Mitutoyo optical flat with one surface accurately polished for inspecting the flatness of gauge block or platen reference surfaces, ...

That’s why our unbiased, non-commissioned product advisors’ only incentive is to recommend a product that they truly believe is the right choice to help you meet your goals, and at a price point that also meets your budget. There’s never any pressure to buy, and you can rest assured that your recommendation is personalized for you rather than motivated by financial gain. We look forward to helping you start your astronomy journey!

The diagonal body is machined from a solid block of aluminum. In this way you can be sure of getting permanent alignment. The one piece body construction also assures heavy accessories can't force the diagonal body to "unscrew" from the barrel as with other brands. Features brass compression clamp, anti-reflection threads, and 1.25" filter threads.

Flatmirror

Optical magnifiers are available with different levels of magnification. The right choice depends on the text size and/or the object you want to view, and your remaining vision.

Whiter and brighter images. Simply put, that is the benefit of the Tele Vue Everbrite mirror coating. This exotic, dielectric, nonmetallic coating is 99% reflective across the full visual spectrum, resulting in the "whitest," and most natural image available. The coating is painstakingly applied to Pyrex, with a surface accuracy of 1/10 wave flatness. A superior flat mirror is what you want when you need to obtain the best optical image performance from your telescope system!

Jan 23, 2022 — What is color temperature • Green is green. Once you set your white balance, any light source that is higher in Kelvins will appear cooler. Any ...

We know how to narrow down the products that best fit YOUR needs, rather than push something simply because it’s easy. Once we’ve done that, we ensure you understand WHY we’re recommending the product by teaching you the concepts behind the product and in the process, we demystify all the terminology. Leaving you with confidence knowing you are making the right decision and one that is perfect for you and your goals of viewing the night sky!

Look, we get it. Stating that we’re the “best” can seem a bit like a catch. However, with a combined astronomy experience of over 115 years (117 to be exact), our team of telescope and astrophotography experts, a.k.a. "Gear Experts", knows astronomy and how to service our customers.

Jun 26, 2017 — USAF PT Test Calculator allows users to quickly calculate the results of United States Air Force Physical Training tests. With the use of ...

Mirrors Optics

A hand-held magnifier is ideal to use at home or on the go. Grab the handle and move it over the text or object to view it in magnification. The Optelec PowerSlider handheld magnifier is small and light enough to be carried around and to be used both indoors and outside the home. You can use a handheld magnifier to quickly view objects in close proximity.

An optical magnifier is a reading aid for people with a visual impairment. With an optical magnifier, you can read text and view photos with magnification. This helps you to read more easily. Optelec offers a range of optical magnifiers that make reading easier, at home, in the office and on the go.

Jul 29, 2024 — Calculate the angle of view for each side of the sensor sᵢ with the formula: aovᵢ = 2 × arctan(sᵢ/(2 × f)) · Input each result in the camera ...

Optelec refers requests for the Optelec PowerMag+ line of optical magnifiers and prescriptive optical solutions with magnification over 3x (+8.0 Diopter) to our Professional Member Network. These Professional Optical Products are not sold directly without a prescription. Consult your eye care professional, or email us at info@optelec.com and we will provide you with more information and/or put you in contact with an eye care professional in your area.

Dielectricmirror

The Tele Vue 1.25" 90° Everbrite Mirror Star Diagonal is one of the best additions to your telescope equipment you will make! This Star Diagonal will fit into any standard 1.25" eyepiece barrel. It will allow you to view through your scope at a comfortable 90° angle to the pointing axis, a very important feature when you are looking at objects close to the Zenith. Save neck and back strain.

Beam Divergence Calculator. To check the Beam Divergence for any lens in milirads, Input Data into the Wavelength andClear Aperture boxes provided below.

Mar 23, 2021 — Once you've shot an image for each aperture from the starting aperture to the smallest aperture available on your lens, you'll then need to ...

The PowerMag+ optical magnifiers are recommended for spot or short-term reading for people who need limited magnification and/or contrast. These optical magnifiers are offered in fixed powers and available in both a hand-held or stand design. To ensure you receive the correct magnification and style of magnifier, we recommend you consult your eye care professional or a product specialist to properly fit your needs before purchasing an optical magnifier. Or, email us at info@optelec.com and we will provide you with more information and/or put you in contact with an eye care professional in your area.