UF 18mm Ultra Flat Field Eyepiece


SKU: 128888 Category: Tags: , ,
UF 18 mm

Ultra Flat Field 18mm eyepiece (hereinafter referred to as UF18 eyepiece) is a newly developed flat field eyepiece of SKY ROVER. It adopts compact mechanical design, provides high-quality optical imaging, can obviously improve the eyepiece field curvature, and control the edge distortion in an ideal range, and can obtain good imaging even on the main mirror with fast focal ratio. UF18 eyepiece has an exit pupil distance as long as 20mm, so even wearing glasses can also get comfortable observation experience. It is equipped with foldable eye cup, observing close to eyes rarely gets black. Remove the foldable eye mask, there is a M43X0.75 thread. If you need to take photos behind the eyepiece, you can also use this interface for projection photography. If the filter behind the eyepiece is needed, it can also be installed here, which will not affect the look and feel too much.


Magnification = objective lens focal length/eyepiece focal length.




Coating: Fully multi-coated (FMC)

Focal Length: 18mm

Eye Cup: Foldable

Eye Relief: 20mm

FOV: 65 Degrees

Field Stop: 27mm

Size of Interface: 1.25 Inches

Optical structure: 8 elements in 5 groups

Net Weight: 207g

Accessories: box, cleaning cloth


In order to improve the quality of products, the manufacturer reserves the right to make changes in design and equipment without notifying users.


Free shipping 

Shipment within 5-7 business days after payment day.






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