Astronomik 1.25"/2" Narrowband Emission Line OIII-CCD Filters w/ 12nm FWHM & MFR Coating (ASK-OIII-12NM-CCD)

Astronomik 1.25"/2" Narrowband Emission Line OIII-CCD Filters w/ 12nm FWHM & MFR Coating (ASK-OIII-12NM-CCD)Due to the combination of the narrow bandwidth of 12nm and the high transmission of typically 96% the filter gives you an contrast boost, as all unwanted light from other wavelengths than 501nm is blocked form UV up to the IR. This results in an very dark background compared with any filters with a higher bandwidth. The FWHM of 12nm is optimized for typical DSLR cameras with CMOS sensors and CCD cameras with a normal high dark current: With these

5 m) Twilight Factor: 40 - 69 with included eyepiece Relative Brightness: 16 - 1

With a payload capacity of 5kg (11 pounds)

Diffraction limited Eyepiece holder: 1

anodized aluminum and stainless steel construction

The diagonal is 12

The most popular cameras used for Prime Focus are Full-Size and APS-C sized Digital SLRs

accommodating both unipolar and bipolar designs

The FFI 07 APO also features three different threaded connections for connecting a camera or accessories: M48

Unique to Sky-Watcher’s AZ-EQ5 is a patented dual-encoder motor system

Important safety note: inspect your binocular’s objective lens filters before every use

among others

Full compatible with USB 2