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SVBONY 1.25" 31.7mm 0.5X Focal Reducer for Telescope Eyepiece Astronomy
Reduction factor of about 0.5x effectively halves the focal length of a telescope; enabling lower magnification; wider field of view and shorter exposure times for astrophotography.
Fits All Standard 1.25" Scope Eyepieces
Package Includes:
1 X SVBONY 1.25" Telescope 0.5X Focal Reducer
0.5X Focal Reducer Features:
Reduction factor of about 0.5X
Expands the image field of your webcam;
More light intensity;
Can be used visually with eyepiece and filter;
Also optimal for video astronomy;
Take images of larger areas of the Moon's surface.
0.5X focal reducer: 28x0.6mm threads for eyepieces, camera adapters, diagonals, extender tubes and other accessories with standard 1.25" threads, increases the image field of your web cameras.
Pure optical glass lens
Pure optical glass lens and broadband coating optics increase light transmission and prisms are held in a black-anodized aluminum housing for better correction.
Solid Construction
The prisms are held in a sturdy and durable black-anodized aluminum housing for better correction. It is not recommended for very fast scopes or very wide angle eyepieces.
Customer
Reviewed in Mexico on July 22, 2024
Excelente producto, calidad superior, bonito diseño y color, llegó super rápido, gracias!!!!!
PGF
Reviewed in the United States on March 30, 2024
A powerful focal reducer in a small factor. I purchased it to help my guiding scope focus on large objects that took too much of my field of view and did not care about aberrations that might accompany this type of optics. Good value for the money.
joe
Reviewed in Canada on November 6, 2024
i wanted lower wider FOV but this unit is just junk i just missed the 30 days rerturn by 1 day, i should have returned as soon as i tested but i was busy and forgot anyway skip this item. even though it was just over 30 days svbony contacted me for a full refund. they stand behind their products which is great to know
Jeff
Reviewed in the United States on January 4, 2023
Yes, it reduces the focal length, but the optics are not good. Chromatic aberration & narrow field of view
Alsamman
Reviewed in the United States on June 8, 2022
Sharp in the center with presence of distortions in the sides. That was expected for this price.
SK
Reviewed in Canada on September 2, 2021
Metal construction , no plastic
Juan C.
Reviewed in Mexico on August 8, 2021
Buen precio, y la relación calidad precio esta bien funciona con mi cámara ocultar
juan alvarez
Reviewed in the United States on June 6, 2021
Funciona en telescopios de gran focal
Customer
Reviewed in the United States on May 30, 2021
Threads onto my SVBony camera great.
Martin Martinez Alvarado
Reviewed in Mexico on December 1, 2021
La calidad del producto es suficiente para observaciones rápidas. No funciona con ocultes de más de 25 mm, pues se forma una viñeta. Es útil para oculares medianos, quizás 20 mm o menos. La reducción es de 0.7 aprox no 0.5
Jake Cook
Reviewed in the United States on April 17, 2021
It threaded on fine but dont know how well it works because couldnt achieve focus with my newtonian
YB
Reviewed in the United States on April 13, 2021
The threading is horrible, the optics are even worse (it reduced the field of view of the sky as it should, but drastically reduced my eyepiece's FOV). It also doesn't thread on properly to the bottom of my 1.25 inch eyepieces, or my 1.25 inch diagonal mirror. The focul reducer lens nearly fell into the optical tube. Will be making a return right away. I've used other SVBONY products like their eyepieces and phone-telescope adapters; this is the first disappointing product that I've purchased from them.
kd8txw
Reviewed in the United States on August 13, 2020
I'm trying to find the focus point while using it with an Orion 60mm guidescope and a ZWO 120 camera & 1.25 adapter. I ordered an Orion 1.25" extension tube. Maybe that will help but I'm not sure. For $11 the lens looks OK to me. Hopefully I'll be able to use it. If not I will try it with my eye pieces.
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