SVBONY SV131 32 mm 1.25″ eyepiece review

Plössl eyepieces are one of the most popular eyepieces among astronomy enthusiasts. They are inexpensive and have a relatively wide field of view (about 50 degrees). I received a Svbony SV131 eyepiece with a focal length of 32 mm and a mounting diameter of 1.25 inches for review. This is a four-lens eyepiece made according to the Plössl design.

Model Svbony SV131
Eyepiece Type Plossl Eyepiece
Focal length 32mm
Field of View 48 Degree
Exit Pupil 23mm
Eye Relief 19mm
Field Stop Diameter 25mm
Lens group 2 Group / 4PCS
Lens coating FMC
Side of the lenscoate Matt Blackened
Meterial Metal & Optic Glass
Thread size M28.5*0.6 for 1.25 inch filters
Eyecup type Rubber
Non-slip Cover Yes
Net Weight 116.5 g/4.11oz
Dimension Ø61X104mm

The eyepiece is supplied in a small package. The set includes an eyepiece and two protective covers. There is no damage or defects. The eyecup is rubber, folding, 2 positions, removable. The height of the unfolded eyecup is 12.4 mm.

Package
Package
Eyepiece box
Eyepiece box
Box Contents
Box Contents
Eyepiece with covers
Eyepiece with covers
Eyepiece with covers
Eyepiece with covers

The weight of the eyepiece in the box with lids is 148.8 grams.
Weight without lids – 108 grams.
Weight without lids – 105 grams.
The length of the eyepiece with covers and a folded eyecup (or without covers and with an unfolded eyecup) is 80 mm.
Case diameter – 40 mm.
The diameter of the skirt is 31.6 mm, there is a groove to protect it from accidental falling out of the focuser.
Skirt length – 21.7 mm.
Inside the skirt there is a thread with a diameter of 27.9 mm for a light filter.

The diameter of the eye lens is 24.8 mm, it is recessed by 7.4 mm relative to the folded eyecup and 6 mm relative to the removed eyecup. The coating is green, all surfaces bordering the air are coated. There are dull, colorless highlights from glued lenses. The measured field of view is larger than stated – approximately 51 degrees.

Eye lens
Eye lens
Skirt with thread
Skirt with thread
View from the skirt
View from the skirt
Lens glare
Lens glare
Lens glare
Lens glare

The measured eye relief is approximately 23.6 mm.
The skirt can be unscrewed – the field diaphragm size is 27.5 mm.

The transmission test showed that there was no color distortion.

Color rendering test
Color rendering test

A test with a 76mm f9.2 reflex telescope showed that the eyepiece had noticeable pincushion distortion. The contrast is high. Sharpness across the entire field is good. With faster telescopes (f5), field sharpness may be worse. The eye relief is sufficient for observation with glasses, even with the eyecup unfolded.

Summary
Well made Plössl eyepiece with full coating. Recommend!
You can buy the eyepiece in the official Svbony store.
Реклама: ООО “АЛИБАБА.КOМ (РУ)” ИНН 7703380158

2 thoughts on “SVBONY SV131 32 mm 1.25″ eyepiece review”

  1. Выглядит, как родной брат Celestron. По качеству, видимо, тоже. Так что рекомендую!

  2. Костик

    Отличный окуляр, сам таким пользуюсь! Использую его как поисковый!
    Спасибо Вам, за то, что делаете!

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