4 Inch 0.8x Corrector for APM 180mm f/7 Triplet APO
The corrector improves the focal ratio of the apo from f/7 to f/5.6, allowing objects to be exposed in just one night. The illumination and correction is designed for high-resolution full-frame sensors. The corrector is specially calculated for the APM 180mm f/7 APO.
Scope of Delivery:
- Corrector
- M48X0.75 Adapter
- M54X0.75 Adapter
- M68X1 Adapter
- Dust-Caps
Products specifications
Connection to camera
|
M48 x 0.75 Thread |
Recommended distance from focal plane to connecting thread
|
55 mm |
Coating
|
Multicoated |
Made for
|
APM 180mm f/7 APO |