Feature

●Flat Field Eyepiece;offer corrected field curvature;you will observe an image not just in the centre but right out to the outer edge
●Clear image;Fully multi-coated and blackened lens edges to reduce reflections; 8 lens 5 groups give you an image of high colour purity and excellent contrast
●Comfortable;65° wide field of view keeps stars planets and lunar details in focus across the field of view; 20mm eye-relief is ideal for long intensive observing sessions
●Eyecup;folded-up eyecup fit for glasses wearers or not;removing eyecup has a M42x0.75 thread for astrophotography
●18mm eyepiece;medium power eyepiece for a bright, low power view of the moon and most all deep-sky objects


Description

flat field eyepiece 18mm telescope eyepiece 1.25flat field eyepiece 18mm telescope eyepiece 1.25

SV190 18mm Ultra Flat Field Eyepiece--Observe the moon and deep sky

Main features:

1.offer corrected field curvature

2.Fully multi-coated and blackened lens edges

3.8 lens 5 groups optical lens

4.65° wide field of view

5.20mm eye-relief

6.folded-up eyecup

7.M42x0.75 thread for astrophotography

Package Includes:

1xSV190 1.25" UF18mm Eyepiece

2xLens Covers

1xLens Cleaning Cloth

flat field eyepiece 18mm telescope eyepiece 1.25flat field eyepiece 18mm telescope eyepiece 1.25

flat field eyepiece 18mm telescope eyepiece 1.25flat field eyepiece 18mm telescope eyepiece 1.25
65° field of view

Flat field eyepieces offer 20-30% larger fields of view than a standard eyepiece.It keeps stars planets and lunar details in focus across the field of view

Flat field eyepiece

Flat Field eyepieces offer corrected field curvature, normally one of the flaws in optical imaging. This correction provides excellent Optics from the center of the field, all the way to the edge,not just in the centre.These eyepieces let you observe objects just as they appear in reality

flat field eyepiece 18mm telescope eyepiece 1.25flat field eyepiece 18mm telescope eyepiece 1.25

Crystal-clear images

---FMC broadband film maximizes the light transmission and minimizes internal reflection.

---8 elements in 5 groups structure design maximizes contrast and delivers crisp sharp images.

--blackened lens edge to reduce scattering of stray light and maximize contrast.

flat field eyepiece 18mm telescope eyepiece 1.25flat field eyepiece 18mm telescope eyepiece 1.25

flat field eyepiece 18mm telescope eyepiece 1.25flat field eyepiece 18mm telescope eyepiece 1.25

flat field eyepiece 18mm telescope eyepiece 1.25flat field eyepiece 18mm telescope eyepiece 1.25

20mm eye-relief

Ideal for long intensive observing sessions

M42x0.75 thread

Removing eyecup has a M42x0.75 thread for astrophotography

Folded-up eyecup

Fit for glasses wearers or not

flat field eyepiece 18mm telescope eyepiece 1.25flat field eyepiece 18mm telescope eyepiece 1.25

specification

Size: 1.25"
Material: Metal
Focal Length: 18mm
Eye Relief: 20mm
Lens Structure: 8-Elements 5Groups
Field of View: 65 degrees
Coatings: Fully Multi-Coated
Filter Thread: M28.5x0.6
Eyecups Type: Rubber eyecups
Thread : M42x0.75(removing eyecup)
Net Weight: 207g/ 7.28oz