FS Series Guide Scope / FS-200AC,AR/FS-250AC,AR Find Scope

1.1、FS-200AC,AR/FS-250AC,AR Find Scope General Characteristics

The optical lens of FS-200AC,AR/FS-250AC,AR find scope is designed with a two-piece double-glued achromatic structure, and the lens adopts a multi-layer coating process to further improve the transmittance of the lens. The focal length of FS-200 is 200mm, the diameter is 46mm, and the focal ratio is F4.5; the focal length of FS-250 is 250mm, the diameter is 46mm, and the focal ratio is F5.6.

The FS-200AC,AR/FS-250AC,AR find scope barrel is made of aluminum alloy and CNC machined to ensure both stability and aesthetics.

The FS-200AC,AR/FS-250AC,AR find scope focus seat currently has two models, FSB-125C(Crayford Focusers) and FSB-125R(Rack and Pinion Focusers), for users to choose from. Their parameters are shown in the table below. Among them, the FSB-125C adopts precision bearing guidance and gearless focusing, which can ensure the stability of the optical axis during the focusing process; the FSB-125R focus seat adopts gear rack and pinion focusing, which has higher focus accuracy. The inner diameter of the end of the focus seat is 1.25 inches, which is compatible with mainstream guide cameras; there is an M42x0.75 thread on the outside, which can be connected to the M42x0.75 interface cooling/planetary camera. The focus handwheel adopts chamfer knurling technology, which is both beautiful and practical. The laser marking process is used to calibrate the focusing stroke scale, which is convenient for users to find and record the focus position.

The FS-200AC,AR/FS-250AC,AR find scope rings and dovetail plate are also made of aluminum alloy and CNC machined. The find scope rings have M5 threaded holes on the top and side for easy installation of other astronomical equipment; the dovetail plate has multiple M6 threaded holes and a 3/8-16 British threaded hole at the bottom for connecting to tripods and other equipmeimg-boxnt.

The physical products of FS-200AC,AR/FS-250AC,AR find scopes are shown in Figure 1 and Figure 2

1.2 FS-200AC,AR/FS-250AC,AR Find Scope, Focus Seat Model

The current model parameters of FS-200AC,AR/FS-250AC,AR find scopes are shown in the table below. There are two find scopes with different focal lengths to choose from to meet user needs.

Currently, there are two models of focus seats, FSB-125C and FSB-125R, for users to choose from. Their parameters are shown in the following table. FSB-125C adopts gearless focus, while FSB-125R adopts gear focus.

1.3 FS-200AC,AR/FS-250AC,AR Find Scope Dimensions

The product dimensions of FS-200AC,AR/FS-250AC,AR series find scopes are shown in Figure 3 to Figure 6.The product dimensions of FS-200AC,AR/FS-250AC,AR find scope focus seats are shown in Figure 7 and Figure 8.