GSO 8x50mm Right Angle Correct-Image Finder with Bracket & Base

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- Right-angle 8x50 finder makes it easier to hunt faint objects without back and neck strain
- Large 50 mm aperture lets you star hop using fainter stars and see many deep-sky objects directly
- Correct-image orientation shows a view of the sky that matches most star charts
- Generous 5.4 degree field of view makes it easy to pick out fainter guidepost stars
- Includes bracket and Synta-style dovetail base
- Available in white, black, or silver-grey
Most telescopes come with a small, straight-through finder telescope. But many astronomers prefer the use of larger, right-angle finders that offer many more advantages. With a 50mm finder, you can hunt down fainter objects that you would not see in smaller 24mm or 30mm stock finders. "Correct Image" finders present a view that matches the orientation of the sky or the orientation of the stars in star charts. And, perhaps most importantly, your back and neck will thank you for using a "Right-Angle" finder and no longer subjecting them to various contortions at the telescope.
So if you are looking to upgrade your stock finder, GSO's high quality 8x50 right angle finder may be just what you need. It features a multi-coated 50mm achromatic objective, an Amici prism that provides a non-inverted, non-reversed correct-image, and single eyepiece cross-hairs that allow for precise centering of faint objects. The field of view is a generous 5.4 degrees.
The finder comes with a bracket and a Synta/Vixen style finder dovetail base. The bracket has 2 thumbscrews (may be metal or plastic - GSO keeps changing these) and one spring-loaded screw for quick and easy alignment of the finder with your telescope. The diagonal and eyepiece are not removable, changeable or rotatable. The finder comes with two protective end caps for the objective and the eyepiece.
This GSO finder telescope is available in a choice of white, black or silver/gray tube. The dewshield, diagonal and eyepiece are black in all three models. The finder is easily focusable from the objective end by turning the objective assembly and locking focus using the focus lock ring just behind the dewshield. You may recognize these as the same finders sold by some other big name companies for a lot more.
Specifications
Total Finder Weight = 18.4 oz (OTA = 11.5 oz, Bracket = 5.5 oz, Dovetail Base = 1.4 oz)
Tube Diameter = 53mm (2.09")
Dewshield Diameter = 58mm (2.28")
Tube Length (White/Black/Silver Section) = 86mm (3.39")
Total Finder Length = 205mm (8.07")
Finder Base Details
The included finder base can accommodate screws up to 5mm in diameter (mounting screws not included). Center-to-center screw hole spacing on your telescope must be between 20mm (0.79") minimum and 37mm (1.46") maximum in order for this dovetail base to be compatible. Fits tubes 5" and larger in tube diameter (not telescope aperture), as well as flat surfaces.
We cannot comment on compatibility of the included finder bracket base with your specific telescope. Please use the dimensions provided above or in the last product photo above to make this determination yourself. We sell a wide variety of other Synta-style finder bases that will also work with this finder's bracket.
If you intend to use the included finder bracket with your own dovetail base/shoe or with one already molded into your focuser housing, here are the "foot" dimensions of the bracket so that you can check compatibility with your "shoe."
Maximum width at bottom: 30.7mm
Maximum width at top: 23mm
Height: 9.9mm
Other Information
- Country of Manufacture: Taiwan
Most telescopes come with a small, straight-through finder telescope. But many astronomers prefer the use of larger, right-angle finders that offer many more advantages. With a 50mm finder, you can hunt down fainter objects that you would not see in smaller 24mm or 30mm stock finders. "Correct Image" finders present a view that matches the orientation of the sky or the orientation of the stars in star charts. And, perhaps most importantly, your back and neck will thank you for using a "Right-Angle" finder and no longer subjecting them to various contortions at the telescope.
So if you are looking to upgrade your stock finder, GSO's high quality 8x50 right angle finder may be just what you need. It features a multi-coated 50mm achromatic objective, an Amici prism that provides a non-inverted, non-reversed correct-image, and single eyepiece cross-hairs that allow for precise centering of faint objects. The field of view is a generous 5.4 degrees.
The finder comes with a bracket and a Synta/Vixen style finder dovetail base. The bracket has 2 thumbscrews (may be metal or plastic - GSO keeps changing these) and one spring-loaded screw for quick and easy alignment of the finder with your telescope. The diagonal and eyepiece are not removable, changeable or rotatable. The finder comes with two protective end caps for the objective and the eyepiece.
This GSO finder telescope is available in a choice of white, black or silver/gray tube. The dewshield, diagonal and eyepiece are black in all three models. The finder is easily focusable from the objective end by turning the objective assembly and locking focus using the focus lock ring just behind the dewshield. You may recognize these as the same finders sold by some other big name companies for a lot more.
Specifications
Total Finder Weight = 18.4 oz (OTA = 11.5 oz, Bracket = 5.5 oz, Dovetail Base = 1.4 oz)
Tube Diameter = 53mm (2.09")
Dewshield Diameter = 58mm (2.28")
Tube Length (White/Black/Silver Section) = 86mm (3.39")
Total Finder Length = 205mm (8.07")
Finder Base Details
The included finder base can accommodate screws up to 5mm in diameter (mounting screws not included). Center-to-center screw hole spacing on your telescope must be between 20mm (0.79") minimum and 37mm (1.46") maximum in order for this dovetail base to be compatible. Fits tubes 5" and larger in tube diameter (not telescope aperture), as well as flat surfaces.
We cannot comment on compatibility of the included finder bracket base with your specific telescope. Please use the dimensions provided above or in the last product photo above to make this determination yourself. We sell a wide variety of other Synta-style finder bases that will also work with this finder's bracket.
If you intend to use the included finder bracket with your own dovetail base/shoe or with one already molded into your focuser housing, here are the "foot" dimensions of the bracket so that you can check compatibility with your "shoe."
Maximum width at bottom: 30.7mm
Maximum width at top: 23mm
Height: 9.9mm
- Right-angle 8x50 finder makes it easier to hunt faint objects without back and neck strain
- Large 50 mm aperture lets you star hop using fainter stars and see many deep-sky objects directly
- Correct-image orientation shows a view of the sky that matches most star charts
- Generous 5.4 degree field of view makes it easy to pick out fainter guidepost stars
- Includes bracket and Synta-style dovetail base
- Available in white, black, or silver-grey
Most telescopes come with a small, straight-through finder telescope. But many astronomers prefer the use of larger, right-angle finders that offer many more advantages. With a 50mm finder, you can hunt down fainter objects that you would not see in smaller 24mm or 30mm stock finders. "Correct Image" finders present a view that matches the orientation of the sky or the orientation of the stars in star charts. And, perhaps most importantly, your back and neck will thank you for using a "Right-Angle" finder and no longer subjecting them to various contortions at the telescope.
So if you are looking to upgrade your stock finder, GSO's high quality 8x50 right angle finder may be just what you need. It features a multi-coated 50mm achromatic objective, an Amici prism that provides a non-inverted, non-reversed correct-image, and single eyepiece cross-hairs that allow for precise centering of faint objects. The field of view is a generous 5.4 degrees.
The finder comes with a bracket and a Synta/Vixen style finder dovetail base. The bracket has 2 thumbscrews (may be metal or plastic - GSO keeps changing these) and one spring-loaded screw for quick and easy alignment of the finder with your telescope. The diagonal and eyepiece are not removable, changeable or rotatable. The finder comes with two protective end caps for the objective and the eyepiece.
This GSO finder telescope is available in a choice of white, black or silver/gray tube. The dewshield, diagonal and eyepiece are black in all three models. The finder is easily focusable from the objective end by turning the objective assembly and locking focus using the focus lock ring just behind the dewshield. You may recognize these as the same finders sold by some other big name companies for a lot more.
Specifications
Total Finder Weight = 18.4 oz (OTA = 11.5 oz, Bracket = 5.5 oz, Dovetail Base = 1.4 oz)
Tube Diameter = 53mm (2.09")
Dewshield Diameter = 58mm (2.28")
Tube Length (White/Black/Silver Section) = 86mm (3.39")
Total Finder Length = 205mm (8.07")
Finder Base Details
The included finder base can accommodate screws up to 5mm in diameter (mounting screws not included). Center-to-center screw hole spacing on your telescope must be between 20mm (0.79") minimum and 37mm (1.46") maximum in order for this dovetail base to be compatible. Fits tubes 5" and larger in tube diameter (not telescope aperture), as well as flat surfaces.
We cannot comment on compatibility of the included finder bracket base with your specific telescope. Please use the dimensions provided above or in the last product photo above to make this determination yourself. We sell a wide variety of other Synta-style finder bases that will also work with this finder's bracket.
If you intend to use the included finder bracket with your own dovetail base/shoe or with one already molded into your focuser housing, here are the "foot" dimensions of the bracket so that you can check compatibility with your "shoe."
Maximum width at bottom: 30.7mm
Maximum width at top: 23mm
Height: 9.9mm
Other Information
- Country of Manufacture: Taiwan

GSO 8x50mm Right Angle Correct-Image Finder with Bracket & Base
