£379.00
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Pentax SMC XW-Revival Eyepieces
Pentax re-launched two popular eyepiece models: XW-30 and XW-40.
The high-performance XW-series optics incorporates high-refraction, extra-low-dispersion glass elements to produce a well-balanced image with minimal aberrations. It is particularly designed to reduce the disturbing blackout effect by effectively compensating the spherical aberration of the pupil.
Main Features:
Capacity |
|
Focal length (mm) | 30 |
Apparent field of view (°) | 70 |
Eye relief (mm) | 20 |
Number of lenses | 7 |
Number of groups | 6 |
Connection (to the telescope) | 2" |
Connector (at camera end) | M48 |
Coating of optical system | FMC |
Transmission | 96 (550nm) |
Special features |
|
Adjustable eyepiece cup | yes (rotatable) |
Optional camera adaptor | yes |
Filter thread | yes |
inert gas charge | no |
General |
|
Type | Eyepiece |
Type of build | SWA |
Series | XW |
Weight (g) | 740 |
Length (mm) | 123 |
Diameter (mm) | 76 |