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- Eyepieces
Product Description


FMC lens
FMC lens and internal matting threads reduce stray light and chromatic aberration. Make the field of vision sharper

M28.5X0.6 thread
The thread at the bottom of the eyepiece can be directly connected to the filter, which is very convenient in astrophotography
Long eye relief distance
Comfortable eye distance is friendly to eyeglass wearers, and the eyes are not prone to fatigue when viewing
40-57°Field of view
Wide viewing angle provides a clear and sharp view while providing magnification
40mm Eyepiece Feature
Type: | Plossl eyepiece |
Focal length: | 40mm |
Barrel size: | 1.25" /31.7mm |
Apparent field of view: | 40 degree |
Filter threads: | M28.5x0.6 for standard 1.25” |
filter Coatings: | fully multi coated |
Lens elements: | 4 |
Lens groups: | 2 |
Blackened lens edges: | yes |
Height: | 79mm/3.11in |
Rubber eye guard: | yes |
Net weight: | 82g/2.9oz |
SV135 Eyepiece Feature
Focal length: | 7-21mm |
Lens structure: | 6PCS / 4group |
Interpupillary Dist.: | 15mm |
Field of view: | 57~40° |
Rubber Eye Guard: | Yes |
Thread Size: | M28.5*0.6 |
Net Weight: | 133g / 4.67oz |
Meterial: | Metal |
Zoon Type: | Linear |
Eye Relief: | 18mm - 16.3mm |
Barrel Size: | 1.25" |
Coatings: | Fully Multi-Coated-Green |
Overall length: | 93mm |
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