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The theoretic value of the focal length calculation serves to find the best suitable optics. Typical increments of focal lengths for C-mount lenses are e.g. ( ...

TECNO DISTRIBUZIONE srl è nata nel 2001. La mission dell?azienda è quella di diventare punto sicuro nella distribuzione di prodotti tecnologici legati al ...

When you choose your right optical lenses, you need to know your exact requirement on transmission rate and reflection rate. And what will effect them? It needs to be traced back to the raw material - optical glass. It is just the values of “VD” and “ND”. They play a key role.

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VD stands for "Abbe number" . It is one material’s dispersion measurement. In other words, how much the refractive index of the material varies with wavelength. And use Abbe number to show different refractive index. With higher Abbe number, this material has larger dispersion. That is to say, such a material separates different colors of light more strongly. On the contrary, With lower Abbe number, this material has smaller dispersion. That is to say, such a material separates different colors of light less strongly.

UNDERSTANDING CAMERA LENSES · LENS ELEMENTS & IMAGE QUALITY · INFLUENCE OF LENS FOCAL LENGTH · FOCAL LENGTH & HANDHELD PHOTOS · ZOOM LENSES vs. PRIME LENSES.

Our small workshop located in Italy produces a few pieces at a time, rigorously created by hand piece by piece. All our leather camera strap is made in Italy.

This camera prioritizes clarity and brilliance, featuring a built-in flash to brighten up your shots, and red-eye reduction to ensure every portrait is ...

ES is a member of the HC Group of Companies that is centred on delivering turnkey solutions to clients in the HVACR environment.

Very good strap, size as advertised. Shipping took some time, but not the fault of the seller. Good communication, would buy again if new strap is needed :)

We accept return for all the order (exclude the personalized order). You can return the product before 7 days the delivery. The shipping cost is not refundable.

A leather camera strap for photographers made by photographers. We are the first users of our camera straps, we are passionate and lovers of photography from every point of view. Hence the need to create a unique camera strap on the market! What a combination of style, practicality and comfort!

All our shipping have a traking number for check the status of the shipping, and generally will be delivery in 7-15 business day. We ship worldwide for free. If you want you can buy the upgrade of shipping for a fast delivery

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We made personalized order. Please contact us for any questions. We can, also, made all size you want. Just write us in the note at checkout your prefer size in CM or inch.

Pünktlich abgeschickt, aber die Post hatte wohl Schwierigkeiten, hat ewig im Nirvana gehangen. Jetzt endlich angekommen und gute Qualitätä! Mirko vom Shop wollte schon nach Reklamation der langen Lieferzeit einfach nochmal versenden! Sehr kundenorientiert!!!

Meet the security and safety needs of unique sites and applications with specially designed Avigilon cameras and sensors.

Such two values are important, optical glass is often characterized by them. since they affect the optical glass’s behaviour in one optical system, for further, you can read more... https://www.toperoptics.com/what-does-the-values-of-nd-and-vd-mean-in-optical-glass-filed/

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We accept all payments method. You can use a safe and tryst credit card payments, or PayPal, Apple Pay, Google Pay, Klarna ecc.

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20211021 — Regarding light, wavelength does not affect speed since the speed of light=c=2.998*108. With De Broglie's Wavelength, since velocity is in ...

Backlighting for membrane and touch switches works in a similar way as backlighting used in other devices, including liquid-crystal displays (LCDs).

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ND stands for " Refractive number" . It is a measure of how much light is bent when it passes through one kind of material. With higher Refractive index, this material bends light more strongly. On the contrary, With lower Refractive index, this material bends light less strongly.

Lovely product. Great quality and very fast shipping with UPS! Can highly recommend, my favorite camera straps from Europe!

Really nice strap. Pretty much exactly what I was looking for, though I wish there was a thinner option that was adjustable. Only issue was the shipping to the US took much longer than anticipated (purchased on January 24th, delivered February 20th). But if you don't need it in a hurry, it's a great strap.

All of our leather camera straps are created with premium quality leather. We only use real vegetable tanned leather from our trusted tannery "La perla azzurra" in Tuscany (Italy).

Rigid Industries is a leader in LED lights and light bars, including fog lights. We also have mounting for a variety of trucks and other off-road vehicles.

EM Boehmler · 1996 — The predominant channel bed materials are gravel and cobble (D50 is 94.8 mm or 0.311 ft). ... inches diameter) on the upstream and downstream right roadway ...