WLLIAM OPTICS SWAN 15mm 1.25目鏡(SWAN 15mm 1.25)
WLLIAM OPTICS SWAN 15mm 1.25目鏡

 

 

SWAN: how many comparable EPs at this price?

The Swan eyepieces are super wide angle designs with 72° apparent field of view. They use simple but sophisticated five-lens optical systems for generally higher contrast than the more complicated optical designs used in some other super wide angle eyepieces that use up to eight lenses. All lenses are fully multicoated for high light transmission. Lens edges and internal field stops are blackened to reduce internal reflections and improve contrast. The eyepiecerubber grip ring is useful for safer handling of the heavier 2” eyepieces in cold weather when wearing gloves. The eyepieces have soft roll down rubber eyecups for eyeglass use. They can be used for all types of observing, with all telescope types, but they are recommended for use with focal ratios up to f/6 and above. Dust caps are provided for both ends of each eyepiece. A soft protective drawstring-equipped velvet storage bag is standard equipment with each.

This 5-element super-wide angle 15mm SWAN EP’s panoramic views at 72 deg. F.O.V. will leave you speechless!
For day and night! A very useful focal length which every user should have.

Your Window on the Sky!
• Outstanding super-wide field of view: 72° F.O.V.
• Fully Multicoated lenses for excellent transmittance.
• Reduced chromatic aberration.
• Improved sharpness and contrast throughout the field.

Impressive Performances
• Internally fully blackened (lens edges and internal spacers).
• No flaring or ghosting on high-contrast objects.
• Parfocal.

Comfortable
• Soft rubber eyecup.
• Long eye-relief: 14mm.
• No internal reflections, kidney beaning, pin-cushion or other distortions.

Terrific Fit and Finish
• High-resistance anodized black barrel.
• Smooth design for no hook up in your focuser.
• Threaded for filters’ usage.

 

Internally baffled, All lenses' edges and internal spacers blackened, Fully multicoated
Model SWAN 15
Focal Length 15mm
Lens Structure (#Elements/#Groups) 5/4
Field of View 72
Eye Relief 14mm
Barrel 1.25"
Coating FMC
Parfocal Yes
Weight 90g
 

 

 


本產品已暫停 / 停止銷售(生產)

產品資訊 品牌: William-Optics           型號:SWAN 15mm 1.25
訂購編號:#A9168     條碼/廠家型號 :F #SWAN 15mm 1.25
銷售情形 產品已暫停銷售/停止銷售/停產
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超商貨到取貨付款 更新時間:2011/5/16 下午 05:14:00

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