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Lumicon Neutral Density #13 48mm Filter (Fits 2" Eyepieces)
Lumicon Neutral Density #13 48mm Filter (Fits 2" Eyepieces)
B&H # LUND132 MFR # LF2080
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- 1Description
The Lumicon 2" Neutral Density 13 (ND13) filter, transmits 13% of all incident light, while blocking 87%.
The 1.25" filters employ industry-standard 1.125" x 42 tpi threads (except for Questar/Brandon, which use a thread pattern unique to Questar). The 48 mm filters employ industry-standard 48 x 0.75 mm threading, which thread into 2" eyepieces. All larger filters use the given size with 0.75 mm pitch (e.g. a 72 mm Minus Violet filter has 72 x 0.75 mm threads).
Note: Recommended for lunar observing with 8" (200mm) and larger telescopes
- Lumicon Neutral Density Filters are made from renowned Schott and Hoya optical glass and allow for maximum contrast on viewing planetary and lunar detail
- Individually precision ground, highly polished with maximum light transmission coatings on both sides, these filters are 100% guaranteed for life
Neutral Density filters have four main uses
- To enable slow shutter speeds to be used, especially with high speed films, to record movement in subjects such as waterfalls, clouds, or cars
- To decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their background
- To decrease the effective ISO of high speed film (above ISO 400) and allow it to be used outdoors in bright situations
- To allow cine and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes which could cause overexposure
UPC: 791512974216
In the Box
Lumicon Neutral Density #13 48mm Filter (Fits 2" Eyepieces)
Table of Contents
- 1Description
| Packaging Info | |
|---|---|
| Package Weight | 0.05 lb |
| Box Dimensions (LxWxH) | 2.3 x 2.3 x 0.4" |
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