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This product is a new generation of independent design of quintuple air-spaced high quality refractor telescope which take the form of dual after triplet. One of the triplet lens is ultra-low dispersion ED glass, which fully optimizes the function of photography, the range of image can reach the 60mm influence circle of medium frame, and the image peripheral dimming control is excellent. For most amateur astronomer it will be the device of choice for astrophotography.
Considering the importance of photographic focal plane, this product leaves 145mm space for the connection of professional high performance imaging equipment and accessories.
The 4-inch large focuser is belong to domestic initiation, the abundant threaded interface makes it easy for various joints and accessories
This product is a beautiful, fashion style professional design and manufacturing to bring good product experience.
(taken by SHARPSTAR 121SDQ,each×8 5min,L2×2 5min)
(taken by SHARPSTAR 121SDQ,each×10 5min,L6×6 5min)

Spot diagram