{"product_id":"shelyak-se0129","title":"Shelyak C-mount adapter for the Alpy 600","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects C-mount cameras to the Shelyak Alpy 600\u003c\/li\u003e\n\u003cli\u003eProvides an adjustable backfocus range from 9.5mm to 20mm\u003c\/li\u003e\n\u003cli\u003eReplaces the standard T-mount thread on the spectroscope\u003c\/li\u003e\n\u003cli\u003eEnables use of common scientific and guiding cameras\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\u003eC-mount adapter for the Alpy 600\u003c\/h2\u003e\n\u003cp\u003eThis C-mount adapter for the Alpy 600 spectroscope allows you to set a precise camera backfocus between 9.5mm and 20mm. It replaces the native T-mount, opening up compatibility for C-mount cameras commonly used in spectroscopy that require a backfocus within this 9.5mm to 20mm range.\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\u003eC-Mount Compatibility and a 9.5mm to 20mm Backfocus Range\u003c\/h3\u003e\n\u003cp\u003eThe Shelyak Alpy 600 spectroscope is supplied with a standard T-mount for attaching a science camera. This adapter allows you to convert that interface to the C-mount standard, which is widely used by many compact, high-speed CMOS cameras ideal for spectroscopy.\u003c\/p\u003e\n\u003cp\u003eThe key feature is the adjustable backfocus, which can be set anywhere between 9.5mm and 20mm. This range gives you the flexibility to achieve a sharp focus with various camera models that have different sensor flange depths.\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\"\u003eWhy do I need this C-mount adapter for my Alpy 600?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Alpy 600 ships with a T-mount. This adapter is necessary if your science or guiding camera uses the C-mount standard, which is common for many high-frame-rate CMOS cameras. It physically converts the mount to ensure a secure, threaded connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the 9.5mm to 20mm backfocus range on the Alpy 600 C-mount adapter mean?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is the range of distances you can set between the adapter's mounting flange and your camera's sensor to achieve a sharp focus on the spectroscope's slit. You will need to adjust within this range to match your specific camera's flange focal distance to get a sharp spectrum.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a guide camera with a 12.5mm backfocus. Can I use it with the Alpy 600 and this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Since that camera's 12.5mm backfocus falls comfortably within the adapter's \u003cstrong\u003e9.5mm to 20mm adjustment range\u003c\/strong\u003e, you will be able to achieve proper focus. This makes it compatible with many popular C-mount cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work for attaching my DSLR to the Alpy 600?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. DSLR cameras typically use T-mounts (via a T-ring) and have a much longer backfocus requirement (around 55mm), which is far outside this adapter's 9.5mm to 20mm range. The Alpy 600's standard T-mount is the correct interface for a DSLR.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs a C-mount connection as secure as a T-mount for the Alpy 600?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, for the cameras it's designed for. C-mount cameras are typically small and lightweight. The threaded C-mount connection provides a secure, non-flexing attachment essential for stable and repeatable spectroscopic work.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I set the correct backfocus with this Alpy 600 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will typically start by referencing your camera's documentation for its flange-to-sensor distance. Set the adapter within its 9.5mm to 20mm range to match that distance, then perform fine focusing adjustments on the telescope to get a sharp spectrum.\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\u003eCamera Mount\u003c\/td\u003e\n\u003ctd\u003eC-mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpectroscope Interface\u003c\/td\u003e\n\u003ctd\u003eReplaces Alpy 600 T-mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackfocus Range\u003c\/td\u003e\n\u003ctd\u003e9.5mm - 20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Spectroscope\u003c\/td\u003e\n\u003ctd\u003eShelyak Alpy 600\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\"\u003eC-mount adapter for the Alpy 600\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\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Shelyak_Alpy_600_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eShelyak Alpy 600 Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/shelyak-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eShelyak 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shelyak","offers":[{"title":"Default Title","offer_id":52943047590173,"sku":"SHK-SE0129","price":77.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Shelyak-C-mount-adapter-for-the-Alpy-600-1_615451ca-76cd-4092-970c-608bf37473a2.jpg?v=1789616326","url":"https:\/\/davidastro.com\/en-us\/products\/shelyak-se0129","provider":"David Astro","version":"1.0","type":"link"}