Product Overview
Used Sharpstar Z4 telescope. There is a tiny tiny spec of dust between the lens.
According to the users’ and market demands, Sharpstar has newly launched an integrated astrograph—Z4. It has an aperture of 100mm and the focal ratio is f/5.5. Z4 is a sextuplet astrograph with three pieces of lens at the front and three pieces at the back, and two of them are ED glasses. Just like other series of Sharpstar astrographs, Z4 is designed as self-flattened so there is no need to calculate the back focus. You can just make the target stay at the focus, and the optical system is perfect for imaging.
Sold as a final sale. Please refer to our used policy. https://ontariotelescope.com/return-policy/
Specifications
Focal ratio:F/5.5
Objective lens:sextuplet fully air-spaced APO (including two ED glasses)
Image circle:36mm
Back focus:55mm(from the M48 thread)
Total length:482mm
Net weight:4.3kg
Gross weight:5.6kg(without the aluminum box)
Rear-end thread :M48×0.75 male thread
Tapered adapter:M86×1-M68×1
M68×1-M54×0.75
M54×0.75-M54×0.75
M54×0.75-M48×0.75(with M48×0.75 filter thread)
Standard package items:a tube ring, a dovetail plate, a handle, a 4-piece photographical adapter, a warranty,a manual
Objective lens:sextuplet fully air-spaced APO (including two ED glasses)
Image circle:36mm
Back focus:55mm(from the M48 thread)
Total length:482mm
Net weight:4.3kg
Gross weight:5.6kg(without the aluminum box)
Rear-end thread :M48×0.75 male thread
Tapered adapter:M86×1-M68×1
M68×1-M54×0.75
M54×0.75-M54×0.75
M54×0.75-M48×0.75(with M48×0.75 filter thread)
Standard package items:a tube ring, a dovetail plate, a handle, a 4-piece photographical adapter, a warranty,a manual
