[Mamiya C] Mamiya Sekor 55mm f4.5
鏡頭資料》(右圖與資料來源:medfmt.8k.com)
光圈:f4.5 – f22
口徑:46mm
快門:Seiko 快門,B、1-1/500 秒
鏡片結構:九片七群
視角:約 70 度
Mamiya C 系列 TLR,可以支援換鏡的機身型號有:
- Mamiyaflex C Professional (1956) — 120 film, knob winder, manual shutter cocking
- Mamiya PF (1957) — police model
- Mamiyaflex C2 Professional (1958) — 120 film, knob winder, manual shutter cocking
- Mamiya C3 Professional (1962) — 120 film, crank winder, manual shutter cocking
- Mamiya C33 Professional (1965) — 120 film, crank winder, automatic shutter cocking
- Mamiya C22 Professional (1966) — 120 film, knob winder, manual shutter cocking
- Mamiya C220 Professional (1968) — 120/220 film, knob winder, manual shutter cocking
- Mamiya C330 Professional (1969) — 120/220 film, crank winder, automatic shutter cocking
- Mamiya C330f Professional (1975) — 120/220 film, crank winder, automatic shutter cocking
- Mamiya C220f Professional (1982) — 120/220 film, knob winder, manual shutter cocking
- Mamiya C330s Professional (1983) — 120/220 film, crank winder, automatic shutter cocking
這些機身,擁有七個焦段的鏡頭群,涵蓋了廣角、標準、望遠,焦段計有:
- 廣角:55mm、66mm
- 標準:80mm、105mm
- 望遠:135mm、180mm、250mm
除了 80mm 鏡頭有不同光圈的版本外,其餘的焦段的不同版本通常差異是鏡頭所使用的快門,若以鏡身顏色大致上可以整理出所使用的快門:
- 第一代銀色鏡使用的是 Seikosha-MX 快門,最速快門為 1/400 秒;
- 第二代銀色鏡使用 Seikosha-S 快門,最速快門提升到 1/500 秒,並且有 B 快門;少部份銀色鏡使用 Seikosha-SLV 快門;
- 黑色鏡除了 80mm 的黑色鏡使用 Copal 快門外,主要使用的是 Seiko 快門。
Wiki 列出了完整的鏡頭表,可以參考:
- Mamiya-Sekor 55mm f4.5 (black, Seiko)
- Mamiya-Sekor 65mm f3.5 (chrome, Seikosha-MX
- Mamiya-Sekor 65mm f3.5 (chrome, Seikosha-S)
- Mamiya-Sekor 65mm f3.5 (black, Seiko)
- Mamiya-Sekor 80mm f2.8 (chrome, Seikosha-MX)
- Mamiya-Sekor 80mm f2.8 (chrome, Seikosha-S)
- Mamiya-Sekor 80mm f2.8 (black, Copal)
- Mamiya-Sekor 80mm f2.8 S (black, Copal)
- Mamiya-Sekor 80mm f3.7 (chrome, Seikosha-SLV) - rare
- Mamiya-Sekor 80mm f3.7 (black, Copal) - rare
- Mamiya-Sekor 105mm f3.5 (chrome, Seikosha-MX)
- Mamiya-Sekor 105mm f3.5 (chrome, Seikosha-S)
- Mamiya-Sekor 105mm f3.5 (black, Seiko)
- Mamiya-Sekor 105mm f3.5 D (black, Seiko)
- Mamiya-Sekor 105mm f3.5 DS (black, Seiko)
- Mamiya-Sekor 135mm f4.5 (chrome, Seikosha-MX)
- Mamiya-Sekor 135mm f4.5 (chrome, Seikosha-S)
- Mamiya-Sekor 135mm f4.5 (black, Seiko)
- Mamiya-Sekor 180mm f4.5 (chrome, Seikosha-MX)
- Mamiya-Sekor 180mm f4.5 (chrome, Seikosha-S)
- Mamiya-Sekor 180mm f4.5 (black, Seiko)
- Mamiya-Sekor 180mm f4.5 Super (black, Seiko)
- Mamiya-Sekor 180mm f4.5 Super (black, Seiko-SLV)
- Mamiya-Sekor 250mm f6.3 (black, Seiko) - manual cocking on all bodies
這顆 55mm f4.5 鏡頭標回來時,快門是壞的,送修回來試拍了兩卷,很喜歡這顆鏡頭的表現。查了一些資料,和別的焦段不同,這顆只有黑色的版本,同時也是所有 C 系列鏡頭最廣的一顆,焦段換算為 135 約等於是 30mm 焦長的廣角鏡。(From: 焦点距離等計算器)
實拍照》
Mamiya C3 + Mamiya Sekor 55mm f4.5 + Kodak Ektacolor PRO 160
本鏡實拍相片集:Mamiya-sekor 55mm f4.5
鏡身照》
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