{"product_id":"wanderer-astro-nd-filter-for-wanderercover-v4-ec-and-v4-ec-ir","title":"Wanderer Astro ND Filter for WandererCover","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAvailable in 7 sizes from 80mm to 240mm\u003c\/li\u003e\n\u003cli\u003eDesigned for WandererCover V4-EC and V4-EC IR\u003c\/li\u003e\n\u003cli\u003eEnables Calibrated Flat Frames with Sensitive Cameras\u003c\/li\u003e\n\u003cli\u003eReduces Panel Brightness Without Affecting Color Balance\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\u003eDownloads\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\u003eWanderer Astro ND Filter for WandererCover\u003c\/h2\u003e\n\u003cp\u003eThe Wanderer Astro ND Filter, available in 7 sizes from 80mm to 240mm, is the essential accessory for your WandererCover. It is specifically designed to reduce the brightness of the flat panel, allowing you to capture perfectly exposed, non-saturated flat frames with today's highly sensitive CMOS and CCD astronomy cameras.\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\u003eCalibrated Flat Frames for Sensitive Cameras\u003c\/h3\u003e\n\u003cp\u003eModern astronomy cameras often have such high quantum efficiency that even at the lowest brightness setting, a flat panel like the WandererCover can cause saturated pixels, especially when using broadband LRGB filters. This saturation renders flat frames unusable and prevents proper image calibration.\u003c\/p\u003e\n\u003cp\u003eThis Neutral Density (ND) filter solves the problem by reducing the light intensity evenly across the entire visual spectrum. By installing the filter, you can use longer, multi-second exposures for your flats, improving their signal-to-noise ratio and ensuring a perfect calibration without clipping any data.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevent Saturation:\u003c\/strong\u003e Allows you to gather flats with high-QE monochrome or one-shot color cameras without overexposing, even through high-transmission luminance filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImprove Flat Field Quality:\u003c\/strong\u003e Use longer exposures to average out any scintillation or minor fluctuations in the light source, resulting in a smoother master flat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintain Color Neutrality:\u003c\/strong\u003e As a true neutral density filter, it reduces brightness without introducing any color cast, ensuring your flats accurately reflect the response of your optical system.\u003c\/li\u003e\n\u003c\/ul\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\"\u003eWhich size Wanderer Astro ND Filter do I need?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou should select the Wanderer Astro ND Filter size that matches the size of your WandererCover. For example, if you own the 125mm WandererCover, you need the 125mm ND Filter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen is the Wanderer Astro ND Filter necessary for taking flats?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis filter is necessary when your camera's pixels saturate even at the WandererCover's lowest brightness setting. This is a common issue with \u003cstrong\u003ehighly sensitive CMOS cameras\u003c\/strong\u003e, especially when shooting through high-transmission filters like Luminance (L), Red (R), Green (G), or Blue (B).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this ND filter affect the color of my flat frames?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The Wanderer Astro ND Filter is a neutral density filter, meaning it is designed to decrease the intensity of all wavelengths of light equally. It will not introduce a color cast to your images, ensuring the color balance of your flat frames remains accurate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the ND Filter into my WandererCover?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe filter is designed to integrate directly with the corresponding WandererCover V4-EC or V4-EC IR model. Please refer to your WandererCover manual for specific installation instructions and diagrams.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy ASI2600MM camera saturates luminance flats with my 125mm WandererCover. Will this filter solve it?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is precisely the scenario the Wanderer Astro ND Filter is designed for. The filter will reduce the panel's brightness significantly, allowing you to increase your flat frame exposure time to several seconds. This achieves a strong signal and high ADU without clipping the highlights, leading to perfect calibration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm using a fast f\/4 refractor and a 100mm WandererCover. Do I need the ND filter for narrowband flats?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eLikely not for narrowband, but almost certainly for broadband. Narrowband filters (like Ha, OIII, SII) block a vast amount of light, so saturation is rarely an issue. However, with an f\/4 system, your Luminance filter flats will almost certainly saturate. The ND filter is essential for capturing your LRGB flats correctly in such a fast optical system.\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\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eWandererCover V4-EC, WandererCover V4-EC IR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Sizes\u003c\/td\u003e\n\u003ctd\u003e80mm, 100mm, 125mm, 150mm, 190mm, 225mm, 240mm\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\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWanderer Astro ND Filter (Selected Size)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThis accessory does not require its own software or manual. Please refer to the manual for your WandererCover for installation and usage instructions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/wanderer-astro-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWanderer Astro 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Wanderer Astro","offers":[{"title":"80mm","offer_id":52940503548189,"sku":"WA-WC4ND-80","price":5.0,"currency_code":"USD","in_stock":true},{"title":"100mm","offer_id":52940503580957,"sku":"WA-WC4ND-100","price":5.0,"currency_code":"USD","in_stock":true},{"title":"125mm","offer_id":52940503613725,"sku":"WA-WC4ND-125","price":5.0,"currency_code":"USD","in_stock":true},{"title":"150mm","offer_id":52940503646493,"sku":"WA-WC4ND-150","price":6.0,"currency_code":"USD","in_stock":true},{"title":"190mm","offer_id":52940503679261,"sku":"WA-WC4ND-190","price":8.0,"currency_code":"USD","in_stock":true},{"title":"225mm","offer_id":52940503712029,"sku":"WA-WC4ND-225","price":9.0,"currency_code":"USD","in_stock":true},{"title":"240mm","offer_id":52940503744797,"sku":"WA-WC4ND-240","price":9.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/WandererAstro-ND-Filter-for-WandererCover-1_051d2038-7d04-47d4-9d0c-33d71b007f4c.jpg?v=1789571381","url":"https:\/\/davidastro.com\/fr-us\/products\/wanderer-astro-nd-filter-for-wanderercover-v4-ec-and-v4-ec-ir","provider":"David Astro","version":"1.0","type":"link"}