Optolong UV/IR-Cut Filter 2"

Optolong UV/IR-Cut Filter 2"

This filter is also part of the LRGB filter set as well as the LRGB-IR685 set, however here it is also available on its own.

UV/IR Cut Filter Introduction

Optolong UV/IR Cut filter is designed for ultraviolet and infrared wavelength blocking to improve sharpness of the image as most of the optics are designed for the visible spectrum, because it's very difficult to create a lens with the same focal point for the visible and IR spectrum. 

It is used with digital cameras and video recorders, which do not have an IR protection filter toward an image sensor or were remodeled. This is important because unfiltered CCD and CMOS sensors are extremely susceptible to UV and IR rays just outside the visible spectrum that can have a very negative impact on image quality. 

Suitable for color CMOS and CCD cameras and modified DSLRs;

Available to assist in focusing;

Act as an outstanding dust shield, which prevents the possibility of dust settling on the lens when long time exposure. 

UV/IR Cut, R, G, B Filters Spectrum for Reference

How to reach the chart?

The horizontal axis is the Wavelength in Nanometers(nm).

The vertical axis is Transmission in %.

The WHITE line shows the transmission of the UV/IR Cut filter. R filters line is shown in RED. G filter line is shown in GREEN. And the B filter line is shown in BLUE.

Packaging Style as a kit by using "Solar System Seal"

Outer Box: silver box

Plastic Box: PP material

Lining: imported high pressure white EVA material

Testimonials

Jupiter by Zhou Zhiwei (周志伟)

Imaging Telescopes Or Lenses: Celestron C11. Televue Powermate 2.5x

Mounts: NEQ6 Pro

Filter: Optolong UV/IR Cut 1.25"

Accessories: ZWO ADC. ZWO EFW 8 1.25" 

Software: ASICAP

Seeing: 3

Transparency: 7

Resolution: 1000x560

Location: Backyard, Zhuhai, Guangdong, China

Saturn by Zhou Zhiwei (周志伟)

Imaging Telescopes Or Lenses: Sky-Watcher DOB 16 GOTO . TELEVUE 3x Barlow

Imaging Cameras: ZWO ASI462MC

Filter: Optolong UV/IR Cut 1.25"

Accessories: ZWO EFW 1.25" 5 Position . ZWO ADC . ZWO EAF 

Frames: 15000

Focal length: 5400

Resolution: 1280x960

Location: Backyard, Zhuhai, Guangdong, China

Saturn in dawn by Zhou Zhiwei (周志伟)

Imaging Telescopes Or Lenses: Sky-Watcher DOB 16 GOTO . TELEVUE 3x Barlow

Imaging Cameras: ZWO ASI462MC

Filter: Optolong UV/IR Cut 1.25"

Accessories: ZWO EFW 1.25" 5 Position . ZWO ADC . ZWO EAF

Frames: 9000

Focal length: 5400

Resolution: 720x720

Location: Backyard, Zhuhai, Guangdong, China

WIth the sun rise, sky turn brighter quickly, Mr. Zhou took the second group of Saturn in the first rays of morning on a blue-sky background. 

You can see two moons in the east of this planet, which is a place of deep mystery and enchantment. 

Notes

●About color: due to the influence of ambient light, color difference of the display and flash photography, the color of the product may have some color difference. Detailed color is in accordance with the final product.

●About coating: the interference filter will show different colors under different light, which is a normal phenomenon. Please refer to the material specification.

●About the description: the series of this product have the same material, technology and design, different sizes only, please note.