Baader Neodymium with package

Baader IR-Cut Moon & Skyglow Neodymium

Formats

1.25″ Mounted
2″ Mounted (48mm thread)

Spectral Transmission

Spectral Transmission Chart — Yellow line is published transmission. Color fill is my independent verification with the filter I tested. Note: I used a Quartz Tungsten-Halogen bulb which is broad spectrum, but does not have good throughput in the blues hence I only vouch for the accuracy of my independent verification from 500-900nm.

Physical Characteristics of 2″ filter

Filter mount thickness: above threads: 5.91mm; including threads: 7.87mm
48mm threads
Good knurling on top and sides
Neodymium / IR-cut filter

Real world tests

Bortle 4, Canon 5D mk iii (stock), AT60ED at f/6, ISO1600, 15 min integration (6*150s)
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Bortle 4, QHY168C, Cooled to -10C, AT60ED at f/6, Unity gain, 16 min integration (8*120s)
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Bortle 9, Canon 5D mk iii (stock), AT60ED at f/6, ISO1600, 10 min integration (20*30s)
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Bortle 9, QHY168C, Cooled to -10C, AT60ED at f/6, Unity gain, 15 min integration (10*90s)
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Reader Rating82 Votes

48

Pros

Great star color

Fair price

Cons

No clip-in options

92

Purchase from:

High Point Scientific