{ "name": "TelescopeCompareHQ Optics Spec Price Index", "title": "Optics Spec Price Index", "url": "https://telescopecomparehq.com/datasets/optics-spec-price-index/", "csv": "https://telescopecomparehq.com/datasets/optics-spec-price-index.csv", "markdown": "https://telescopecomparehq.com/datasets/optics-spec-price-index/index.md", "computed_at": "2026-10-19", "license": "https://telescopecomparehq.com/terms", "headline": "The Optics Spec Price Index carries 5 published figures read from 3 sources' own pages, from 699 to 1,999 USD, read 12 October 2026.", "quotes": [ "The Optics Spec Price Index carries 5 published figures read from 3 sources' own pages, from 699 to 1,999 USD, read 12 October 2026.", "3 of the 24 named sources read in full publish a figure; 21 publish none, read 12 October 2026.", "Optics Spec Price Index, model ZWO Seestar S30 Pro: median 699 USD across 1 source, read 12 October 2026.", "Optics Spec Price Index, model ZWO Seestar S30 Pro Total Solar Eclipse Edition: median 799 USD across 1 source, read 12 October 2026.", "Optics Spec Price Index, model ZWO Seestar S50 Pro: median 899 USD across 1 source, read 12 October 2026.", "Optics Spec Price Index, model Swarovski EL 8.5x42: median 1,999 USD across 1 source, read 12 October 2026.", "Optics Spec Price Index, model Swarovski EL 10x42: median 1,999 USD across 1 source, read 12 October 2026." ], "citation": "\"TelescopeCompareHQ Optics Spec Price Index\", updated 2026-10-19, https://telescopecomparehq.com/datasets/optics-spec-price-index/.", "changed_since": null, "national": { "unit": "USD", "n": 5, "median": 899, "min": 699, "max": 1999, "p25": 749, "p75": 1999, "mean": 1279, "units": { "USD": 5 }, "published_sources": 3, "named_sources": 25, "read_sources": 24, "not_published": 21, "published_share": 0.125 }, "by_axis": { "model": { "ZWO Seestar S30 Pro": { "USD": { "n": 1, "median": 699, "min": 699, "max": 699, "p25": 699, "p75": 699, "mean": 699 } }, "ZWO Seestar S30 Pro Total Solar Eclipse Edition": { "USD": { "n": 1, "median": 799, "min": 799, "max": 799, "p25": 799, "p75": 799, "mean": 799 } }, "ZWO Seestar S50 Pro": { "USD": { "n": 1, "median": 899, "min": 899, "max": 899, "p25": 899, "p75": 899, "mean": 899 } }, "Swarovski EL 8.5x42": { "USD": { "n": 1, "median": 1999, "min": 1999, "max": 1999, "p25": 1999, "p75": 1999, "mean": 1999 } }, "Swarovski EL 10x42": { "USD": { "n": 1, "median": 1999, "min": 1999, "max": 1999, "p25": 1999, "p75": 1999, "mean": 1999 } } } }, "rows": [ { "source": "ZWO Seestar S50", "url": "https://www.zwoastro.com/product/seestar-s50/", "figure": "$699.00 ", "value": 699, "unit": "USD", "vat": null, "axis": { "model": "ZWO Seestar S30 Pro" }, "retrieved_at": "2026-10-12", "quote": "Price range: $699.00 through $888.00", "source_class": "primary-provider-own-site", "text_sha256": "ee1be643c2bf3fd4efeb5f583bf5963cbac0020cc90e3cc62ed1678ed8215a6d" }, { "source": "ZWO Seestar S50", "url": "https://www.zwoastro.com/product/seestar-s50/", "figure": "$799.00 ", "value": 799, "unit": "USD", "vat": null, "axis": { "model": "ZWO Seestar S30 Pro Total Solar Eclipse Edition" }, "retrieved_at": "2026-10-12", "quote": "Price range: $799.00 through $988.00", "source_class": "primary-provider-own-site", "text_sha256": "ee1be643c2bf3fd4efeb5f583bf5963cbac0020cc90e3cc62ed1678ed8215a6d" }, { "source": "ZWO Seestar S30", "url": "https://www.zwoastro.com/product/seestar-s30-smart-telescope/", "figure": "$899.00 ", "value": 899, "unit": "USD", "vat": null, "axis": { "model": "ZWO Seestar S50 Pro" }, "retrieved_at": "2026-10-12", "quote": "Price range: $899.00 through $998.00", "source_class": "primary-provider-own-site", "text_sha256": "5e9c0c4a9fd0499ed11fef89f958230abc8caa304ac6ebf567611ca4b0acfc99" }, { "source": "Swarovski EL 10x42", "url": "https://www.swarovskioptik.com/us/en/hunting/products/binoculars/el/el-42/el-10x42", "figure": "$1,999", "value": 1999, "unit": "USD", "vat": null, "axis": { "model": "Swarovski EL 8.5x42" }, "retrieved_at": "2026-10-12", "quote": "Price from $1,999", "source_class": "primary-provider-own-site", "text_sha256": "f302275c84b9ad34bbda5c1d517d5c6e78aec22de29e0a7469b0014a83528a2b" }, { "source": "Swarovski EL 10x42", "url": "https://www.swarovskioptik.com/us/en/hunting/products/binoculars/el/el-42/el-10x42", "figure": "$1,999 ", "value": 1999, "unit": "USD", "vat": null, "axis": { "model": "Swarovski EL 10x42" }, "retrieved_at": "2026-10-12", "quote": "Price from $1,999 EL 10x42", "source_class": "primary-provider-own-site", "text_sha256": "f302275c84b9ad34bbda5c1d517d5c6e78aec22de29e0a7469b0014a83528a2b" } ], "not_published": [ { "source": "Celestron NexStar 8SE", "url": "https://www.celestron.com/products/nexstar-8se-computerized-telescope", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Celestron Advanced VX 8 SCT", "url": "https://www.celestron.com/products/advanced-vx-8-schmidt-cassegrain-telescope", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Celestron Origin intelligent home observatory", "url": "https://www.celestron.com/products/celestron-origin-intelligent-home-observatory", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Celestron Nature DX 10x42", "url": "https://www.celestron.com/products/nature-dx-10x42mm-roof-binoculars", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Celestron Ultima 10x42 porro", "url": "https://www.celestron.com/products/ultima-10x42mm-porro-binocular", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Celestron X-Cel LX 3x Barlow", "url": "https://www.celestron.com/products/x-cel-lx-3x-barlow-lens-125in", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Celestron Luminos 31mm eyepiece", "url": "https://www.celestron.com/products/luminos-31mm-eyepiece-2in", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Sky-Watcher Flextube 250P collapsible Dobsonian", "url": "https://www.skywatcherusa.com/products/sky-watcher-flextube-250p", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Sky-Watcher Classic 250P Dobsonian", "url": "https://www.skywatcherusa.com/products/sky-watcher-classic-250p", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Explore Scientific 10-inch Dobsonian", "url": "https://explorescientific.com/products/10-inch-dobsonian-reflector-telescope", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Bresser Dobsonian telescopes", "url": "https://www.bresser.com/astronomy/telescopes/dobsonian-telescopes/", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Bresser Corvette 8x42 binoculars", "url": "https://www.bresser.com/p/bresser-corvette-8x42-binoculars-nitrogen-purged-1440843", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "DWARFLAB DWARF 3", "url": "https://www.dwarflab.com/us/products/dwarf-3-smart-telescope", "retrieved_at": "2026-10-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Vaonis Vespera Pro", "url": "https://vaonis.com/vespera-pro", "retrieved_at": "2026-10-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Unistellar official store", "url": "https://shop.unistellar.com/", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Vortex Diamondback HD 10x42", "url": "https://vortexoptics.com/vortex-diamondback-hd-10x42-binocular.html", "retrieved_at": "2026-10-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Steiner Predator 10x42", "url": "https://www.steiner-optics.com/products/predator-10x42", "retrieved_at": "2026-10-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Tele Vue eyepieces", "url": "https://www.televue.com/engine/TV3b_page.asp?id=50", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Tele Vue telescopes", "url": "https://www.televue.com/engine/TV3b_page.asp?id=1", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "William Optics telescopes", "url": "https://williamoptics.com/collections/telescopes", "retrieved_at": "2026-09-12", "reason": "every candidate on the page was refused" }, { "source": "Baader filters", "url": "https://www.baader-planetarium.com/en/filters/", "retrieved_at": "2026-10-12", "reason": "read in full and no accepted figure on the page" } ], "sources": [ { "url": "https://www.celestron.com/products/nexstar-8se-computerized-telescope", "label": "Celestron NexStar 8SE", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.celestron.com/products/advanced-vx-8-schmidt-cassegrain-telescope", "label": "Celestron Advanced VX 8 SCT", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.celestron.com/products/celestron-origin-intelligent-home-observatory", "label": "Celestron Origin intelligent home observatory", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.celestron.com/products/nature-dx-10x42mm-roof-binoculars", "label": "Celestron Nature DX 10x42", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.celestron.com/products/ultima-10x42mm-porro-binocular", "label": "Celestron Ultima 10x42 porro", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.celestron.com/products/x-cel-lx-3x-barlow-lens-125in", "label": "Celestron X-Cel LX 3x Barlow", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.celestron.com/products/luminos-31mm-eyepiece-2in", "label": "Celestron Luminos 31mm eyepiece", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.skywatcherusa.com/products/sky-watcher-flextube-250p", "label": "Sky-Watcher Flextube 250P collapsible Dobsonian", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.skywatcherusa.com/products/sky-watcher-classic-250p", "label": "Sky-Watcher Classic 250P Dobsonian", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://explorescientific.com/products/10-inch-dobsonian-reflector-telescope", "label": "Explore Scientific 10-inch Dobsonian", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.bresser.com/astronomy/telescopes/dobsonian-telescopes/", "label": "Bresser Dobsonian telescopes", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.bresser.com/p/bresser-corvette-8x42-binoculars-nitrogen-purged-1440843", "label": "Bresser Corvette 8x42 binoculars", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.zwoastro.com/product/seestar-s50/", "label": "ZWO Seestar S50", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.zwoastro.com/product/seestar-s30-smart-telescope/", "label": "ZWO Seestar S30", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.dwarflab.com/us/products/dwarf-3-smart-telescope", "label": "DWARFLAB DWARF 3", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://vaonis.com/vespera-pro", "label": "Vaonis Vespera Pro", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://shop.unistellar.com/", "label": "Unistellar official store", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://vortexoptics.com/vortex-diamondback-hd-10x42-binocular.html", "label": "Vortex Diamondback HD 10x42", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.steiner-optics.com/products/predator-10x42", "label": "Steiner Predator 10x42", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.swarovskioptik.com/us/en/hunting/products/binoculars/el/el-42/el-10x42", "label": "Swarovski EL 10x42", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.televue.com/engine/TV3b_page.asp?id=50", "label": "Tele Vue eyepieces", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.televue.com/engine/TV3b_page.asp?id=1", "label": "Tele Vue telescopes", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://williamoptics.com/collections/telescopes", "label": "William Optics telescopes", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.baader-planetarium.com/en/filters/", "label": "Baader filters", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.celestron.com/collections/telescopes", "label": "celestron.com", "license": "the publisher's own terms; quoted for reporting and comment" } ], "methodology": "Every row is a verbatim sentence read from the named source's own page through our fetch service on the date shown, hash-pinned to the stored read (the sha of the page's visible text; the raw page is mirrored to R2). 3 of the 24 named sources that could be read published a usable figure; 21 published none and are recorded as not published, never filled in; 1 could not be read (blocked, dead or unreachable) and count nowhere. The headline figures (median, minimum, maximum, quartiles) are over ONE figure per source for each breakdown it prices, in USD (a source's median where its page yielded several accepted sentences for one breakdown), so a page that gives figures for several breakdowns gives one for each and N counts 5 figures, never sentences; 108 candidate sentence(s) were refused by a reviewer with the reason recorded. The fuller derivation this dataset is chartered to grow into (not yet what the figures above are; they are each source's own published figure as read): one row per model: aperture, focal length, focal ratio, mount type, weight, supplied eyepieces and the maker's own price - and over the rows the figures no maker publishes: cost per millimetre of aperture by optical design, the aperture-price frontier (the largest aperture available at each price point, by design and by brand), the magnification and true field of view for every telescope x eyepiece pair in the index, and the share of models whose maker publishes a price at all.", "embed": "

699 to 1,999 USD

5 published figures, Optics Spec Price Index, across 3 sources, read 12 October 2026

Source: TelescopeCompareHQ Optics Spec Price Index
" }