The Amici has got small prisms, so you'd have a smaller field of view, and - most of all - it is only designed for terrestrial observations at magnifications of no more than 80x, just like most spotting scopes
To make use of the quality of the Grossfeldbino, you should use a seperate glasspath corrector and either a T-2-prism (for the shortest possible connection) or an Amici which is designed for astronomical use like #2456130 (Baader T-2 / 90° Baader Roof-Prism).
Manufacturer Baader Planetarium SKU (#) 2956155 Weight (kg) 0.13 Optical Design Erecting Prism Inner Connection (lens sided) Thread, M28,5 Outer Connection (lens sided) Barrel, 1¼" Outer Connection (eyepiece/-camera-sided) Thread, T-2 (M42 x 0,75) Reflection surface Total reflection AR-Coating Multi-Coated (MC) Image Orientation Erect image, Non-reversed Optical length (mm) variabel Clamping System no clamp Deflection angle 45° Inner Diameter / Clear Aperture (mm) 25
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