Knife-Edge Pickoff Mirrors are designed to selectively reflect an individual beam from a group of tightly spaced beams, while minimizing the overall footprint of the application. These mirrors feature a sharp 45° bevel with a reflective coating that extends to the beveled edge on a precision Fused Silica substrate with λ/10 flatness to the bevel. Knife-Edge Pickoff Mirrors are ideal for applications that incorporate dispersion prisms and diffraction gratings. These mirrors are available in three metallic coating options with performance from the visible spectrum into the far IR.

Knife MirrorFull Body

Honestly this light is amazing!!! I didn’t use the stand I actually bought a wall arm and attached the like to it and it’s so bright and gives even brightness which I need!!! I’ve gone through so many ring lights from Amazon to other brands and this is by far the best one I’ve bought so don’t think about getting it. Do it!

Vintageknife shaped mirror

I received my light yesterday and immediately set it up and started photographing items to add to my website. The light was great and gave me the proper lighting that I needed to showcase my items without any problems. I love the ability to adjust the lighting from warm to cool and not have shadows. I'm so happy I decided to up my game by purchasing this light.

Knife MirrorFull Body Amazon

The biggest differences between the two ring lights are the types of power sources and light output. The Cordless Ring Light Pro has a built-in lithium ion battery, whereas the 18" Ring Light is powered via AC and does not come with batteries. If you want to power the 18" Ring Light via a battery, you will need to purchase two external NP-750 batteries separately.

Yes, if you want to power the 18" Ring Light via a battery, you will need to purchase two external NP-750 batteries separately.

Knife shaped mirrordiy

Please select your shipping country to view the most accurate inventory information, and to determine the correct Edmund Optics sales office for your order.

Flattering light creates flawless content. With the Ring Light 18" you can customize height, angle, temperature, and brightness to illuminate and elevate your content. Collapse the cordless ring light and pack it into the carry case to easily create professional content anywhere, anytime. This ring light is compatible with Sony NP Batteries for a cordless option (*Batteries are not included)

Droughtknife mirror

Flattering light creates flawless content. With the Ring Light 18" you can customize height, angle, temperature, and brightness to illuminate and elevate your content. Collapse the cordless ring light and pack it into the carry case to easily create professional content anywhere, anytime. This ring light is compatible with Sony NP Batteries for a cordless option (*Batteries are not included)

From fast modifications to stock optics to custom designs, we can help you take your optical system from design to prototype to volume production. Contact us to get started today.

Also, the Cordless Ring Light Pro has an output of 1500 lumens, whereas the 18" Ring Light has an output of 528 lumens. While both are portable for on-the-go use, the Cordless Ring Light Pro is also substantially lighter than the 18" Ring Light.

Can't find what you need? From fast modifications to stock optics to custom designs, we can help you take your optical system from design to prototype to volume production. Contact us to get started today.