Special barrel length telescope
The C47280 is similar to the 2062, and is excellent for establishing and/or holding optical reference lines. The barrel length, magnification, and field of view of this instrument are different than other instruments in our family of alignment telescopes. The barrel length of the C47280 is specifically designed as 10" long. The instrument has no built-in micrometers. It does have a built-in autoreflection target and comes with an autocollimation illumination unit (our 509). The C47280 is classified as National Stock Number NSN 6650-00-424-7237.
Additional general information about our alignment telescopes is available here.
May Be Used With
AlignCam®
187-S Coincidence Striding Level
2230 Right Angle Eyepiece (discontinued)
2240 Combination Auto-Collimation, Projection, Right Angle eyepiece
2302 Angle reading attachment
2410 Optical Square (discontinued)
2412 Double Optical Square (discontinued)
3205 Cross Level
3220 Coincidence Striding Level (discontinued)
508 Light Source (discontinued)
| Barrel Length | 10" (254 mm) |
|---|---|
| Effective aperture | 42 mm |
| Field of View | 41 minutes, ±10% |
| Focusing Range | Zero to infinity |
| Magnification | 30x at infinity, ±10% |
| Optics | Fully coated |
| Reticle | All-purpose, double glass, dustproof; cross-pattern with single lines top and right, paired lines bottom and left |
| Straightness of Line of Sight | ±0.002" (0 to 50 ft.); ±0.004" (50 to 100 ft.); 0.5 arcseconds beyond 100 ft. |
| Telescope Barrel | Through-hardened stabilized Stainless Steel |
