Sirui 100mm t/1.8 1.33x Lens Specifications

bythom-sirui-100-t18

An anamorphic telephoto lens.

  • Coverage: full frame (FX)
  • Field of view: 32.3° diagonal, 1.33x anamorphic creates 2.4:1 aspect ratio
  • Optic design:
    • 18 elements in 13 groups
    • 5 cylindrical elements
  • Aperture:
    • t/1.8 to t/22, de-clickable aperture ring
    • 13-blade diaphragm
  • Filter/Accessories:
    • 67mm filter ring 
  • Focus:
    • autofocus
    • stepping motor
    • internal focus
    • 28” (0.7m) minimum focus
    • 1:10 maximum magnification ratio (horizontal)
    • No DOF markings
  • Size and weight:
    • 5.4” (137.5mm) long
    • 3.2” (80mm) diameter
    • 25.3 ounces (716g) weight
  • Other: 
    • USB-C port for firmware updates
    • AF/MF switch
    • Fn button
    • available with blue or neutral flare
    • rustproof, dire-resistant, rain-resistant build
    • standard gearing ring for focus and aperture
  • Price: US$849
  • Announced: January 2026


Looking for other photographic information? Check out our other Web sites:
photography: bythom.com | Nikon DSLRs: dslrbodies.com | Nikon film SLRs: filmbodies.com
Mission statement | Code of Ethics | Privacy Info | Sitemap

text and images © 2026 Thom Hogan — All Rights Reserved