Sharpstar Z4 F/5.5 Fully Air-Spaced Sextuplet

Product Details

• Description
• Specifications
• Included Items
• Recommended Products
• Reviews

• 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.

  
  

  

  
  

  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.

  
  

  

  
  

  Tapered Adapter:

  • M86x1-M68x1
  • M68x1-M54x0.75
  • M54x0.75-M54x0.75
  • M54x0.75-M48x0.75（with M48x0.75 filter thread)

  

• specifications

  Aperture	100mm (4")
  Back Focus	55 mm
  Camera/Eyepiece Connection	Male M48x0.75
  Corrected Image Circle	36 mm
  Focal Ratio	f/5.5
  Glass Type	ED
  Optical Design	Sextuplet
  Total Weight	12.3 lbs
  Tube Length	482mm
  Tube Weight	9.5 lb

• included items

  • Sharpstar Z4 F/5.5 Fully Air-Spaced Sextuplet
  • Tube ring
  • Dovetail plate
  • Handle
  • 4-piece photographical adapter
  • Warranty
  • Manual