Nikon FEP-50W Eyepiece for EDG Fieldscope
Original price was: ฿21,900.00.฿21,800.00Current price is: ฿21,800.00.
- Seven kinds of eyepieces for optimum optical performance
- Bayonet mount with lock for easy attachment and release
- Fully multilayer-coated
- Waterproof up to 2m for 10 min., and fog-free — thanks to O-rings and nitrogen gas (body-and-eyepiece joint is water-resistant)
- Turn-and-slide eyecup with three click stops: one for observing with the naked eye, one for observing with eyeglasses, and the other for digiscoping (except FEP-30W, FEP-25 LER and FEP-20-60)
- FEP-30W offers a choice of eyecup: soft rubber eyecup for observation and digiscoping eyecup for connection with Digital Camera Bracket FSB series
- FEP-25 LER has ultra-long 32.3mm eye relief
- FEP-20-60 featuring long eye relief of 18.4-16.5mm employs an aspherical lens to minimise image distortion
- Compact digital camera COOLPIX series can be attached to eyepiece of FEP series (except FEP-20-60) with Digital Camera Bracket FSB series
คำอธิบาย
|
|
FEP-50W |
|
Magnification (x)*1 |
50 |
|
40 |
|
|
Real field of view*1 (degree) |
1.4 |
|
1.8 |
|
|
Apparent field of view*2 (degree) |
64.3 |
|
Field of view at 1,000m*1 (m) |
24 |
|
31 |
|
|
Exit pupil*1 (mm) |
1.7 |
|
1.6 |
|
|
Relative brightness*1 |
2.9 |
|
2.6 |
|
|
Eye relief (mm) |
17.8 |
|
Outer diameter x length (mm) |
63×71 |
|
Weight (g) |
230 |
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