{"product_id":"mamiya-sekor-c-180mm-f4-5","title":"Mamiya-Sekor C 180mm F4.5","description":"\u003ch3\u003e\u003cspan\u003eMamiya-Sekor C 180mm F4.5\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLens Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Medium Format Telephoto Lens\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFocal Length:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 180mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMaximum Aperture:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e F4.5\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMinimum Aperture:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e F45\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eLens Mount:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Mamiya RB67\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFormat Coverage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 6×7 Medium Format\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMinimum Focus Distance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approx. 0.85m\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eOptical Construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 5 elements in 3 groups\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFilter Size:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 77mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFocus Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Manual focus via camera bellows\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eShutter Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Seiko #1 Leaf Shutter\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eShutter Speed Range:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1 sec–1\/400 sec, T\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFlash Sync:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Synchronizes at all shutter speeds\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eWeight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approx. 875g\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAngle of View:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 28°\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Mamiya-Sekor C 180mm F4.5 is a medium-format telephoto lens designed for the Mamiya RB67 system. Its 180mm focal length provides a 28° angle of view on the 6×7 format, making it particularly well suited to portraits, compressed landscapes, and subjects requiring greater working distance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe lens features a five-element, three-group optical design and multi-coated optics. Its F4.5 maximum aperture provides a useful balance between telephoto reach and manageable size, while the long focal length offers natural subject isolation and compression characteristic of medium-format photography.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike conventional 35mm SLR lenses, focusing is performed through the RB67 camera's bellows system rather than a focusing helicoid built into the lens. The lens incorporates a Seiko #1 leaf shutter with speeds from 1 second to 1\/400 second, allowing flash synchronization across the full shutter-speed range.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSerial Number: \u003c\/strong\u003e43071\u003cbr\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e LH-96-3727\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e:\u003cbr\u003e- Lens is fully functional\u003cbr\u003e- Front lens cap, rear lens cap, and protective filter included\u003cbr\u003e- Lens glass has no fungus, thin haze, and minor dust\u003cbr\u003e- Lens body has minor scratches\u003cbr\u003e\u003cbr\u003e- เลนส์ ทำงานเต็มระบบ\u003cbr\u003e- เลนส์ ไม่มีรา มีฝ้าบางๆ มีฝุ่นเล็กน้อย\u003cbr\u003e- สภาพตัวเลนส์ มีรอยชีดข่วนเล็กน้อย\u003cbr\u003e- มีฝาปิดหน้า-ท้ายเลนส์ มีFilter\u003cbr\u003e\u003c\/p\u003e","brand":"CAMERA SHOP UNIT","offers":[{"title":"Default Title","offer_id":46308199268396,"sku":"LH-96-3727","price":5500.0,"currency_code":"THB","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0082\/0654\/9051\/files\/87491_0.jpg?v=1790685886","url":"https:\/\/unit-filmcamera.com\/products\/mamiya-sekor-c-180mm-f4-5","provider":"UNIT CAMERA SHOP | BKK","version":"1.0","type":"link"}