1,25" planetfiltresett

Optolong Planetary Seasons filtersæt inklusive UV/IR Cut, R, G, B og IR685, 5 stk filtre i alt. Disse fem filtre er afgrænset af "Solar System Seal".

Hvilke filtre bruges til planetfotografering?
Fotografering af planeter og deepsky imaging, begge er fine at bruge kombinationen af ​​monocrom kamera og filtre. Men lidt anderledes, planeter fotografering vil ikke bruge hvad deepsky billede bruger som Ha, Sii, Oiii filter. Planetfotografering ved hjælp af filtre er ofte IR, UV-filtre osv.
Hovedformålet er at fange det specifikke spektrum, såsom rig kuldioxid. Et af de mest almindelige filtre, vi bruger, er IR-filter-infrarøde filter. I naturen, jo længere lysets bølgelængde er, jo mindre påvirkes af atmosfærisk syn. Relativt set er modtagelsen af ​​indflydelsen af ​​rødt lys eller infrarødt lys langt mindre end de andre bånd.
Når vi tager billeder af planeten, bruger vi normalt et IR-filter, som kun transmitterer infrarødt eller nær-infrarødt lys, for at reducere den negative påvirkning af at se. I synligt lys bruger astrofotografer de klassiske RGB-filtre.
For Uranus og Neptun kommer IR685 først, og for Saturn er Jupiter UV/IR Cut, R, G, B gode. Dog er IRRGB-porteføljen populær.

IR685 fordel

Optolong IR Pass 685nm-filter er designet til at blokere de fleste synlige lys og kan bruges i IR-LRGB-billeddannelse for at producere et skarpere luminansbillede for den bedste planetariske kontrast, da atmosfærisk syn og forvrængning er meget reduceret ved længere IR-bølgelængder. Fordelen ved IR685 filter er at reducere virkningerne af atmosfærisk jitter.

Sensoren på CCD- eller CMOS-kameraer er i stand til at detektere lys i området 350-1100nm inklusive infrarøde bølgelængder. Optolong IR685 afskærer den synlige del af spektret og tillader nær infrarødt lys at passere, så årsagen, der er mest følsom over for dårligt syn, afvises. Det vil i høj grad forbedre billeder af synlighed, kontraster og detaljer om planeter og månen. Desuden bruges IR 685 normalt som en nøglefaktor for portefølje IRRGB.

Imaging Target:
IR 685 er til billeddannelse af lyse planeter, stjerner og kometer, såsom Uranus, Neptun, Jupiter, Saturn, Mars, Månen osv.

UV/IR Cut, R, G,B Introduktion

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 on a digital camera and the video, 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.

Optolong LRGB filter set is designed for maximum contrast and with extremely high gradients for clear differentiation of colors. The LRGB filter set divides the spectrum into its components red, green, blue and luminance.

OIII emission overlaps on blue and green filters with maximum transmission to allow high efficiency and natural color imaging. Gap between green and red filters serves to block out the primary Sodium light pollution line at 589nm and improves color balance and separation.

 RGB, parfocal:1:1:1

Creat images in their true original colors showing a wealth of natural detail;

Steep bandpass filters to eliminate UV and IR interference;

Include Luminance (UV/IR Cut), Red, Green, and Blue filters to reproduce the star's color;

Main Use and Performance

In vIsible light, astrophotographers are absolutly using the classical RGB filters. If you have Optolong LRGB filters, just try R filter for moon photography, which will be a good promotion. If you want more clear details of the Moon, then consider Optolong IR685 filter seriously.

•Suitable for color CMOS and CCD cameras.

•Use with monochrome camera for astrophotography.

•Available to assist in focusing.

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

Jupiter - June 16, 2020 by 周志伟
Imaging Telescopes Or Lenses: Celestron C11 · Televue Powermate 2.5x
Mounts:NEQ6 Pro
Filters: Optolong UV/IR Cut - 1.25"
Accessories: ZWO ADC · ZWO EFW 8 1.25"
Software:ASICAP
Date: June 16, 2020 ;Time: 17:19 ;Frames: 12000; FPS: 30; Focal length: 7000; CMI: 233.00; CMII: 76.30; CMIII: 145.60
Seeing: 3; Transparency: 7; Resolution: 1000x560
Locations: Home, Zhuhai, Guangdong, China; Data source: Backyard

Jupiter @ Optolong RGB filters © 大麦芽
Equipment: DOB10, TV5xBarlow lens
QHY5L-Ⅱ-M
Optolong RGB filters
Location: Tongzhou, Beijing
By 大麦芽

Saturn - April 22, 2021 by 周志伟
Imaging Telescopes Or Lenses:Sky-Watchter DOB 16 GOTO · TELEVUE 3X BARLOW
Imaging Cameras:ZWO ASI462MC
Filters:Optolong UV/IR Cut - 1.25"
Accessories:ZWO EFW 1.25 5 Position · ZWO ADC · ZWO EAF
Software:ZWO ASIStudio
Date: April 22, 2021; Time: 21:34; Frames: 15000; FPS: 66; Focal length: 5400; Resolution: 1280x960
Locations: Home, Zhuhai, Guangdong, China;Data source: Backyard