ED objective lens; the high-quality 2-Element objective provides sharp and high-contrast images for travel and mobile use.
1:10 micro-reduction; the 1:10 micro-reduction is ideal for astrophotography and allows precise focusing
Fully metal construction; anodizing aluminum process; durable for long time use
T2 thread; T2 interior thread and T2 exterior thread for solving spacing problems in astrophotography and eliminates a range of focusing problems
Astronomical T2 thread extension tube; male thread; M42x0.75mm; female thread; M42x0.75mm Link or extend tube length of the M42*0.75 products; Male thread; M42*0.75mm