• Sharpstar Z4 100mm f/5.5 Sextuplet APO Astrograph OTA
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Sharpstar

Sharpstar Z4 100mm f/5.5 Sextuplet APO Astrograph OTA

Sharpstar Z4 100mm f/5.5 Sextuplet APO Astrograph OTA

Sharpstar-Z4

$2,921.00
$2,921.00
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The appearance of Z4 breaks through the previous style of Sharpstar with its matte gray coating. Light gray lens tube plus dark gray focuser and tube ring, make the astrograph looks calm but vibrant. The tube ring has a handle on the top which is easy to carry and assemble. The handle is designed as a slot on which you can mount a finder base, etc. 

Z4 uses a large 3.4” focuser with a 1:10 fine adjustment knob and a 360° rotator for easy focusing and angle adjustment. It has M86, M68, M54, M48 adapters, and the M48 one has an internal thread that can fit 2” filters. And a 300mm Vixen-style dovetail plate, makes it easier to balance on the equatorial mount.

Parameters：
Focal ratioF/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 aluminium 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

Sharpstar Z4 100mm f5.5 Astrograph  and  Askar Colour Magic 3nm Duo Narrow Band Filter
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