- Joined
- Nov 19, 2010
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- San Jose, CA
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I have a spare D90 laying around and I'm considering having it converted to IR or H-Alpha. IR has its obvious purpose but I'm unclear on the benefit of an H-Alpha conversion? I understand it is beneficial to astrophotography and I am planning on purchasing a telescope and/or tracker for an astro rig, but is the filter really necessary? Also, any information I should know about the IR camera would be appreciated.