{"product_id":"svbony-sv260-5-bandpass-light-pollution-filter-2in","title":"SVBONY SV260 5-Bandpass Light Pollution Filter - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e5-Bandpass broadband light pollution filter\u003c\/li\u003e\n\u003cli\u003e2-inch size with M48x0.75 thread\u003c\/li\u003e\n\u003cli\u003eOver 90% peak transmittance for high signal\u003c\/li\u003e\n\u003cli\u003eOD4 blocking of key light pollution bands\u003c\/li\u003e\n\u003cli\u003e44mm clear aperture to minimize vignetting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSvbony SV260 5 Bandpass Light Pollution Filter - 2\"\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV260 5 Bandpass Filter uses a multi-broadband design to reclaim the deep sky from city lights, achieving over 90% peak transmittance to preserve natural color in galaxies and star clusters. Its optical design provides greater than OD4 blocking on critical light pollution sources while maintaining a wide 300-1000nm wavelength range. The 2-inch cell features a full 44mm clear aperture, ensuring unvignetted coverage for large-format CMOS and CCD sensors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOD4 Blocking: Isolating Specific Light Pollution Sources\u003c\/h3\u003e\n\u003cp\u003eThe SV260's primary function is to surgically remove the most common wavelengths of artificial skyglow. It achieves an Optical Density (OD) of 4 or greater in the 350-400nm and 720-1100nm ranges, effectively blocking over 99.99% of unwanted light from these sources. Specific high-pressure sodium (Na) and mercury (Hg) vapor streetlight emissions are heavily suppressed, darkening the image background and dramatically increasing contrast on your target.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e5-Bandpass Design: Capturing Full-Spectrum Color at 90% Transmittance\u003c\/h3\u003e\n\u003cp\u003eUnlike narrowband filters that isolate single emission lines, the SV260 passes light in five distinct bands across the spectrum. This approach allows the faint, continuous spectra of broadband targets—such as the dusty arms of a galaxy or the blue glow of a reflection nebula—to reach your sensor. With a peak transmittance of over 90%, the filter maximizes the signal you want to capture, resulting in shorter total integration times and images with more accurate, vibrant color balance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOptical Build: A 44mm Clear Aperture for Modern Sensors\u003c\/h3\u003e\n\u003cp\u003eEngineered for modern imaging systems, the SV260 is built into a standard 2-inch filter cell with M48x0.75 threads for universal compatibility with filter wheels and camera nosepieces. The filter features a generous 44mm clear aperture, which is critical for preventing vignetting on cameras with APS-C or larger sensors. The 2mm substrate thickness maintains optical precision, with a surface parallelism of 1\/2λ to avoid introducing distortions into the light path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSV260 vs. Narrowband Filters: Choosing Natural Color Over Maximum Contrast\u003c\/h3\u003e\n\u003cp\u003eAn imager's choice of filter depends entirely on the target. The SV260 excels where narrowband filters fall short.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroadband Targets:\u003c\/strong\u003e For galaxies like Andromeda (M31), reflection nebulae like the Pleiades (M45), and globular clusters like M13, the SV260 is the correct tool. It preserves the natural stellar colors and faint outer structures that narrowband imaging completely misses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Nebulae:\u003c\/strong\u003e For targets dominated by Hydrogen-alpha and Oxygen-III, such as the North American Nebula (NGC 7000), a dedicated narrowband or dual-band filter will provide higher contrast. The trade-off is the loss of natural star color and the need for complex color mapping in processing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SV260 is designed for one-shot-color cameras, delivering a more authentic representation of the night sky directly from your data, making it an essential tool for capturing the full diversity of deep-sky objects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of objects is the Svbony SV260 filter best for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Svbony SV260 is a broadband filter designed for deep-sky objects that emit light across a wide spectrum. It is ideal for imaging \u003cstrong\u003egalaxies, star clusters (both open and globular), and reflection nebulae\u003c\/strong\u003e, where preserving natural color and capturing faint starlight is the primary goal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the SV260 perform on the Andromeda Galaxy (M31) from a suburban backyard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV260 is an excellent choice for imaging M31 from light-polluted areas. It will significantly darken the sky background by blocking sodium and mercury vapor light, which increases the contrast of Andromeda's faint outer arms and dust lanes. Because it's a broadband filter, it will also preserve the true colors of the galaxy's core, star-forming regions, and surrounding starfield.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does OD4 blocking mean on the SV260 filter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eOD4\u003c\/strong\u003e stands for \u003cstrong\u003eOptical Density 4\u003c\/strong\u003e. This is a logarithmic scale that measures how much light is blocked. An OD4 rating means the filter transmits only 1\/10,000th (or 0.01%) of the light at that specific wavelength. The SV260's OD4 blocking on key light pollution bands ensures that unwanted artificial skyglow is almost entirely eliminated from your images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eShould I use the Svbony SV260 or a UHC filter for the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis depends on your goal. The Orion Nebula (M42) has both strong emission regions (H-alpha, O-III) and a significant reflection component (the surrounding blue dust). A UHC (Ultra High Contrast) filter will provide more aggressive contrast on the glowing gas but will suppress the reflection nebula and alter star colors. The \u003cstrong\u003eSvbony SV260 will produce a more natural-looking image\u003c\/strong\u003e, capturing both the pinkish emission gas and the blue reflection dust with better color fidelity, making it a great choice for a true-color rendition of the entire complex.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 2-inch SV260 filter work with my full-frame camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Svbony SV260 is well-suited for larger sensors. It features a \u003cstrong\u003e44mm clear aperture\u003c\/strong\u003e, which is larger than many standard 2-inch filters. This wide aperture helps prevent vignetting (darkening of the corners) on cameras with sensors up to and including full-frame format, provided the rest of your optical train is also properly illuminated.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Svbony SV260 replace the need for calibration frames?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it does not. While the SV260 controls light pollution and improves your raw data, you must still shoot calibration frames. \u003cstrong\u003eDarks, biases, and especially flats are still required\u003c\/strong\u003e to correct for sensor noise, dust motes, and any remaining gradients to achieve the best possible final image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eMulti-Broadband Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e2-inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003eM48x0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle Thread\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e44mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubstrate Thickness\u003c\/td\u003e\n\u003ctd\u003e2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Transmittance\u003c\/td\u003e\n\u003ctd\u003e90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength Range\u003c\/td\u003e\n\u003ctd\u003e300-1000nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlocking: UV\/IR\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;OD4 @ 350-400nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlocking: IR\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;OD4 @ 720-1100nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlocking: Mercury (Hg)\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;OD2 @ 435.8nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlocking: Mercury (Hg)\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;OD1 @ 546.1nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlocking: Mercury (Hg)\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;OD3 @ 577nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlocking: Mercury (Hg)\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;OD3 @ 578.1nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlocking: Sodium (Na)\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;OD2 @ 589.6nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlocking: Neutral (Hg\/Na)\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;OD2 @ 589nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface Quality\u003c\/td\u003e\n\u003ctd\u003e60\/40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface Parallelism\u003c\/td\u003e\n\u003ctd\u003e1\/2λ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e12.5g \/ 0.44oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"2\" Round Mounted","offer_id":52861267214621,"sku":"SV-W9194A","price":175.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV260-5-Bandpass-Filter-Light-Pollution-Deep-Sky-Photography-1_eb6d63fd-a1dd-48d9-8cf5-41f43ca5546f.jpg?v=1788883781","url":"https:\/\/davidastro.com\/products\/svbony-sv260-5-bandpass-light-pollution-filter-2in","provider":"David Astro","version":"1.0","type":"link"}