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Subject: Emmission nebulae By: aurora Date: 12/04/2003 02:16:01 pm PST The Ultrablock filter surpasses my O-III for emmission nebulae such as the Great Orion Nebula, although it's performance on planetary nebulae is a little inferior to an O-III filter. This filter will work on more objects than your standard O-III. It is a great all-around filter at a reasonable price. Michael Subject: Re: vote by xxx.xxx.247.13 By: Anonymous (xxx.xxx.30.107) In Reply to: Anonymous (xxx.xxx.247.13) (Original Vote) Date: 12/31/2004 12:37:48 pm PST >After paying 100 dollars and trying it out I was severly dissapointed. It actually made nebulas and clusters look dimmer. Maybe it blocks out to much light. Could be. Since you haven't said how much aperture you have, it's impossible to say for sure. I've also found that with my Orion Skyglow the surrounding light becomes much more intrusive, so I drape a towel over my head while viewing. I own both the Skyglow and the Ultrablock, and without these filters deep-sky observing would be impossible for me. Page 1 of 1 | ||||||||
