{"product_id":"optolong-l-pro-nikon-z-full-frame-clip-in-filter","title":"Optolong L-Pro Nikon Z Full Frame ILDC Clip-in Filter","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Optolong L-Pro Nikon Z Full Frame ILDC Clip-in Filter is a broadband multi-bandpass light pollution filter from Optolong Optics that installs directly in the throat of full-frame Nikon Z-series mirrorless bodies. It suppresses the main artificial-light emission lines — mercury vapour and high\/low-pressure sodium street lighting — along with natural skyglow from neutral oxygen, while keeping the transmission windows over the key nebula lines open: OIII (496\/500nm), H-beta (486nm), H-alpha (656nm), NII (654\/658nm) and SII (672nm). Peak transmission is greater than 90% across a 380–750nm working range, with light-pollution line blocking above 90%. The design goal is low colour cast, so star colour and broadband target colour stay close to natural.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis is a good match if you shoot a full-frame Nikon Z camera from suburban or moderately light-polluted skies and want cleaner contrast without the heavy colour shift of older UHC\/CLS filters. It works whether you are capturing wide Milky Way scenes, broadband deep-sky targets such as galaxies and star clusters, or simply want a general-purpose light-pollution filter that still records natural colour. If your targets are emission nebulae under heavy light pollution, the narrowband L-eXtreme is the better tool.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-bandpass broadband design:\u003c\/strong\u003e keeps the OIII, H-beta, H-alpha, NII and SII windows open for natural star colour and low cast on galaxies and reflection nebulae.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-frame clip-in fit:\u003c\/strong\u003e seats in the Nikon Z throat ahead of the sensor, so it works behind any compatible lens with no filter threads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad light-pollution suppression:\u003c\/strong\u003e attenuates mercury and sodium street-lighting lines and atmospheric skyglow, with line blocking greater than 90%.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging-grade optical tolerances:\u003c\/strong\u003e λ\/4 transmitted wavefront, 60\/40 surface quality (MIL-O-13830) and 30-arcsec parallelism keep stars tight into the corners.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable multi-layer coatings:\u003c\/strong\u003e ion-assisted deposition on a non-cementing substrate resists scratching and holds the central wavelength stable across temperature swings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eOptical Design \u0026amp; Coatings\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe L-Pro is an interference filter: its passbands are formed by stacked thin-film dielectric layers rather than absorption glass, which is why coating quality and layer count drive its performance. Optolong applies these coatings by ion-assisted deposition on a non-cementing substrate, producing hard, stable layers whose transmission peaks do not drift significantly with temperature or age. Because transmission in any interference filter is angle-dependent, the filter is specified for use at roughly 50mm focal length and longer; below that, the steeper light cone from wide lenses can shift the passband at the frame edges and create an interference edge that is easily cropped. The transmission curve below plots the multi-band passband (red) against artificial pollution lines (orange) and natural constellation emission lines (green).\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/optolong-l-pro-nikon-z-transmission-chart.jpg?v=1783183694\" alt=\"Optolong L-Pro Nikon Z clip-in filter transmission spectrum chart showing multi-bandpass light pollution suppression across 380 to 750nm\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eRecommended Uses\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWide-field Milky Way and nightscape imaging from suburban skies\u003c\/li\u003e\n\u003cli\u003eBroadband deep-sky imaging of galaxies, reflection nebulae and globular clusters\u003c\/li\u003e\n\u003cli\u003eGeneral light-pollution reduction for one-shot-colour astrophotography\u003c\/li\u003e\n\u003cli\u003eContrast enhancement where a broadband filter is preferred over narrowband\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCompatibility and Accessory Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera bodies:\u003c\/strong\u003e Nikon Z5, Z6, Z6II, Z7, Z7II, Z8, Z9 and ZF (full-frame Z mount).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLenses:\u003c\/strong\u003e all Z-series lenses; all F-series main and auxiliary lenses via the appropriate mount adapter\/connector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal length:\u003c\/strong\u003e intended for use at 50mm and above; wider lenses may show an interference edge that can be cropped out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocus and compose:\u003c\/strong\u003e the clip sits in front of the sensor, so use Live View.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eImportant Limitations\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNot a solar filter — never use it to view or image the Sun.\u003c\/li\u003e\n\u003cli\u003eFull-frame Z mount only; not for APS-C\/DX or other mounts.\u003c\/li\u003e\n\u003cli\u003eA light-pollution filter raises contrast; it does not make the target brighter or remove light pollution entirely.\u003c\/li\u003e\n\u003cli\u003eBelow ~50mm the interference edge may need cropping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this good for beginners?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. It installs without tools and works behind any compatible lens, so it is one of the simplest ways to lift contrast from a light-polluted backyard.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it for visual observing or astrophotography?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePrimarily astrophotography. As a broadband filter it also improves visual contrast, but its main role is imaging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich cameras does it fit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFull-frame Nikon Z bodies: Z5, Z6, Z6II, Z7, Z7II, Z8, Z9 and ZF.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it cause a colour cast?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFar less than traditional UHC\/CLS filters; the multi-bandpass design is tuned for low cast and natural star colour.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is it different from the L-eXtreme?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe L-Pro is broadband for general deep-sky, galaxies and Milky Way work with natural colour. The L-eXtreme is dual-narrowband (Ha\/OIII) for emission nebulae in heavy light pollution.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eBottom Line\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIn short: a low-colour-cast broadband clip-in filter for full-frame Nikon Z cameras that cuts sodium and mercury light pollution plus skyglow for Milky Way and broadband deep-sky imaging. Use it at 50mm and up, compose in Live View, and step up to the L-eXtreme when your targets are emission nebulae.\u003c\/p\u003e","brand":"Optolong","offers":[{"title":"Default Title","offer_id":53546020143215,"sku":"OPT-LPRO-NKZ-FF","price":313.6,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/3bc5b5663ee879da7a48733408704256.jpg?v=1783176103","url":"https:\/\/ontariotelescope.com\/products\/optolong-l-pro-nikon-z-full-frame-clip-in-filter","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}