Lacerta Premium Flatfield 60-65° eyepieces

Large, well corrected field of view, good transparency and contrast, large eye relief. Very good price/performance ratio

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More about the product

The Lacerta Premium Flat Field eyepieces offer a wide field of view and a well-corrected image at an affordable price. The members of the series are available in focal lengths of 25 mm, 19 mm, 15.5 mm, 10.5 mm and 5.5 mm.

The field of view is 65 degrees for the longer focal lengths, and 60 degrees for the shorter ones. The wide field of view is well corrected even in faster telescopes like F/5-F/6. However minimal edge distortion is noticeable at the very edge of the field of view in faster telescopes and in the case of longer focuses, but it is not strong. Edge correction definitely represents an outstanding level in terms of price.

 The eyepieces consist of 4, 5 or 6 lens elements, which are arranged in 3 or 4 groups. All optical surfaces have a high-quality FMC anti-reflection layer, so light transmission, image sharpness and contrast are at a very high level. It is well suitable not only for deep sky observation, but also for observing planets, Moon and double stars.

The perception experience is also greatly influenced by comfort. These eyepieces offer outstanding performance in this area as well. The eye relief is between 23-16 mm, which allows for very comfortable observation. The flexible, soft rubber eyecups can be folded up and down greatly enhance the feeling of comfort.

Compared to similar priced eyepieces, the image quality (sharpness, contrast), edge correction, and observing comfort are also higher. So these Lacerta Premium Flatfield eyepieces are a truly excellent, new generation eyepieces with an extremely favorable price/value ratio.

Product code LAPF055 LAPF105 LAPF155 LAPF190 LAPF250
fókusz 5,5 mm 10,5 mm 15,5 mm 19 mm 25 mm
névleges látómező 60 fok 60 fok 65 fok 65 fok 65 fok
pupillatávolság 16 mm 16 mm 16 mm 20 mm 23 mm
szemlencse átmérő 18 mm 18 mm 25 mm 25 mm 28 mm
méret 68 mm 58 mm 61 mm 68 mm 75 mm
kihuzat 31,7 mm 31,7 mm 31,7 mm 31,7 mm 31,7 mm
tömeg 91 g 84 g 82 g 92 g 80 g

Armand's opinion

Results of the first test

Optical quality

Mechanical quality

Price/Value ratio

25mm Lacerta Premium Flat Field eyepiece FV=65 deg
25mm Lacerta Premium Flat Field eyepiece FV=65 deg
Summary

Kipróbáltam a LPFF 25mm okulárt, 3 külömböző gyors távcőben. Egy 102/500 refraktorban, 305/1500 és egy 203/1000 tükrösben (mind F/4.9) Széltorzítás van, de nem annyira vészes. A kép nagyon jó, kifejezetten jól sikerült okulárok. Nem bírtam nyugton üllni, így, összehasonlítottam az okulárt egy Q70 32mm 70 fokos látómező, 25 és 32mm plössl, meg egy Baader hyperion zoommal 24mm-en. A LPFF magasan jól teljesített, és teljesen más képe van mint a fent említetekben (a latómezőt , illetve a széltorzítást itt hanyagolnám) A csavar, csak most jött. Összehasonlítottam mindhárom tavcsőben egy Celestron X-Cel Lx 25mm 60 fokos oksival (ami 2,5x drágább és elég elismert állítólag) . Na itt meglepődtem rendesen, mert naggyából semmi külömbséget nem érzékeltem. A fényáteresztés, a kontraszt, a színek, minden tökéletesen ugyanazz. Ahol lebukott, az a látómező ami ha az X-cel-ben 60 fok, akkor az a LPFF-ben maximum 62, és az a +2fok már elég rossz. Amúgy a LPFF és az X-cel is ugyanonnan kezd és ugyanúgy torzítani. Egyeduli külömbség talán a torzított csillagok formája ami eggyikben sem jo . Egy + jel az Xcel-be verszusz egy T betű a LPFF esetében…. Ha nem latszana, hogy homlok egyenest más okulárok más optikai felepítéssel, azt mondanám egymás klónjai. Nem tudom milyen optikai elrendezés lehet a LPFF, 4 lencsetag 3 csoportban…. Egyszóval azt a pénzt amibe kerül mindenképpen megéri, de fényerős tavcsőben azert ne varjunk olyan csodát mint pld a Lacerta UWAN 7mm hoz

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Astronomical telescopes up to 100 Euros
Astronomical telescopes between 100 and 200 Euros
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