![[福利品] SWAN 33mm 2" 目鏡](http://tw.williamoptics.com/cdn/shop/files/SWAN33-1.jpg?v=1766562045&width=960)
![[福利品] SWAN 33mm 2" 目鏡](http://tw.williamoptics.com/cdn/shop/files/SWAN33-2.jpg?v=1766562045&width=960)
[福利品] SWAN 33mm 2" 目鏡
SWAN: a huge-lens rich-field eyepiece at a very reasonable price!
Fully multicoated advanced design for breathtaking and jaw-dropping 72 deg. F.O.V. views.
Try it out on the Milky Way!
A True Spacewalker!
• Marvelous super-wide field of view: 72 deg. F.O.V.
• Fully Multicoated lenses for excellent transmittance.
• Outstanding chromatic aberration correction.
• Sharp and well contrasted.
Great Contrast
• Internally fully blackened (lens edges and internal spacers).
• No flaring or ghosting on high-contrast objects.
• Parfocal.
Ease of Use
• Soft rubber eyecup.
• Extremely long eye-relief: 28 mm.
• No internal reflections.
Terrific Fit and Finish
• High-resistance anodized black barrel.
• Smooth design for no hook up in your focuser.
• Threaded for 2” filters.
- 焦距
- 33mm
- 筒徑
- 2" (50.8mm)
- 視野角
- 72°
- 出瞳距離
- 24mm
- 濾鏡螺紋
- 標準 2" 濾鏡螺紋(M48 x 0.75)
- 鍍膜
- 全表面多層鍍膜
- 鏡片結構
- 5 枚鏡片 / 3 組
- 總長度
- 117 mm
- 重量
- 474 g
選擇選項
SWAN: a huge-lens rich-field eyepiece at a very reasonable price!
Fully multicoated advanced design for breathtaking and jaw-dropping 72 deg. F.O.V. views.
Try it out on the Milky Way!
A True Spacewalker!
• Marvelous super-wide field of view: 72 deg. F.O.V.
• Fully Multicoated lenses for excellent transmittance.
• Outstanding chromatic aberration correction.
• Sharp and well contrasted.
Great Contrast
• Internally fully blackened (lens edges and internal spacers).
• No flaring or ghosting on high-contrast objects.
• Parfocal.
Ease of Use
• Soft rubber eyecup.
• Extremely long eye-relief: 28 mm.
• No internal reflections.
Terrific Fit and Finish
• High-resistance anodized black barrel.
• Smooth design for no hook up in your focuser.
• Threaded for 2” filters.