{"product_id":"sharpstar-3-quot-f4-8-full-frame-reducer-professional-astronomical-accessory-dedicated-for-140ph-telescope","title":"Sharpstar 3\u0026quot; F4.8 Full-frame Reducer Professional Astronomical Accessory Dedicated for 140PH Telescope","description":"\u003cp\u003e\u003cb\u003eSharpstar 3\" F4.8 Full-frame Reducer Professional Astronomical Accessory Dedicated for 140PH Telescope\u003cbr\u003e\u003cbr\u003eDescription:\u003c\/b\u003e\u003cbr\u003e- The newly designed large 3-inch full frame reducer for the 140PH APO features a high-quality metal body design, reducing the focal ratio from the original F6.5 to F4.8. It is aesthetically pleasing and can be used for high-quality astrophotography with the 140PH APO, making the images clearer and the surrounding star points more perfect. It is an essential accessory for astrophotography enthusiasts.\u003cbr\u003e\u003cbr\u003e- Adopting a triplet fully separated design, including a 360 degree rotator and M48 thread.\u003cbr\u003e\u003cbr\u003e- The standard rear intercept, including the rotator, is 55mm. Users can also unscrew the rotator to make the rear intercept 105mm, fully considering the needs of professional users.\u003cbr\u003e\u003cbr\u003e- The front thread is M88x1, directly connected to a 140PH 4-inch focusing adapter interface, making it a professional astrograph combination. Fully optimized design to meet your demanding requirements for image quality, it is an ideal shooting must-have product.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecification:\u003c\/b\u003e\u003cbr\u003e- Application: 140PH\u003cbr\u003e- Focal ratio: f\/4.8\u003cbr\u003e- Image circle: 44mm\u003cbr\u003e- Lens: triplet air-spaced structure\u003cbr\u003e- Outer diameter: 88mm\u003cbr\u003e- Back focus: 55mm\u003cbr\u003e- Total length: 106mm\u003cbr\u003e- Coating: full-surface multi-layer coating\u003cbr\u003e- Weight: 0.9kg\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Reducer\u003c\/p\u003e\u003cp\u003e\u003cimg style=\"width: 790px;\" src=\"https:\/\/www.comseek.com\/image\/catalog\/99071\/99071-01.jpg\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg style=\"width: 790px;\" src=\"https:\/\/www.comseek.com\/image\/catalog\/99071\/99071-02.jpg\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Thanksbuyer Online,SDR Radio, Testers and Measurement devices, Astronomy products, Audio Amplifer and Decoders","offers":[{"title":"Default Title","offer_id":41028713316401,"sku":"99071","price":439.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/1759799455-3.jpg?v=1780322197","url":"https:\/\/www.thanksbuyer.com\/ja\/products\/sharpstar-3-quot-f4-8-full-frame-reducer-professional-astronomical-accessory-dedicated-for-140ph-telescope","provider":"Thanksbuyer Online,SDR Radio, Testers and Measurement devices, Astronomy products,  Audio Amplifer and Decoders","version":"1.0","type":"link"}