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Astrocrumb Filter Slide
[User Review]  | 09/27/03 | by Michael P. Deneen
With a slide, using a filter becomes second-nature, as effortless as focusing.. . .

Astronomik LRGB Type IIc Filters
[User Review]  | 12/11/09 | by David Snay
I have been using an Astronomik H-a filter for narrowband imaging in my Meade DSI-Pro cameras for over a year. I recently added . . .

Baader Fringe Killer Filter
[User Review]  | 01/09/04 | by Peter Franquet
Santa sent me a new skywatcher 80/400 achromat refractor and as I knew it before Christmas, I took informations about it, and about the fact that it suffer. . .

Baader Neodymium Moon and Skyglow Filter
[User Review]  | 12/17/09 | by Robert Piekiel
Like it’s name suggests, this filter also helps the view of deep-sky objects in moonlight, something that other filters. . .

Baader Planeterium Moon & Skyglow Filter
[User Review]  | 04/16/03 | by David A. Novoselsky
Markus just sent me a rather interesting item on the basis of, "test it, and if you like it, keep it and send me a check. If you don't like it, send it bac. . .

Baader Planeterium Moon & Skyglow Filter
[User Review]  | 04/16/03 | by David A. Novoselsky
Markus just sent me a rather interesting item on the basis of, "test it, and if you like it, keep it and send me a check. If you don't like it, send it bac. . .

Baader Planeterium Moon & Skyglow Filter
[User Review]  | 04/16/03 | by David A. Novoselsky
Markus just sent me a rather interesting item on the basis of, "test it, and if you like it, keep it and send me a check. If you don't like it, send it bac. . .

Binoscope Company Narrow and Broadband Nebula Filters
[User Review]  | 01/16/04 | by John Kagey
I have been wanting an 2” 03 filter for sometime now but have not been able to afford one. When Joe Castoro came out with a 2” . . .

Filter Performance Comparisons
[Article | 10/05/06 | by David Knisely
The following is a summary report of visual observations of emission nebulae comparing the performance of various filters intended for such objects.. . .

Lab Test and First Light Report of 2" Zhumell Filter Set
[User Review]  | 10/30/09 | by Shekar Govindaswamy
My interest in astronomy started when I was 15 and saw Haley¡¯s comet through a pair of Bushnell binos. I had always wanted to buy a telescope but growing . . .

Lumicon Multiple Filter Selector
[User Review]  | 04/16/03 | by David Knisely
For those of us who have more than one filter in our equipment arsenal, it is frequently a hastle (and even a hazard) to keep screwing, unscrewing, or even. . .

Mars Filter Comparison
[Article | 11/18/05 | by Tom Allyn
The following is taken from a post in the beginners forum based on an observing report on the morning of 09-08-05. . .

Miyauchi UHC Filter Review
[User Review]  | 01/15/00 | by Mike Barrs
I received the UHC nebula filters last week after a 6-month back-order wait from Anacortes, and I had a chance to test them last night under good observing. . .

Orion 1.25" Variable Polarizing Telescope Filter
[User Review]  | 12/29/09 | by Paul Griffin
The Orion Variable Polarizing Filter makes viewing the moon a more pleasurable experience. Unlike a neutral density filter that . . .

Orion V-Block Filter
[User Review]  | 08/19/03 | by Jay Moynihan
Two of my current scopes are achromats. I purchased a 1.25" version of the Orion V-Block filter to try on them. The filter is advertised as a way to cut do. . .

Orion's 2" OIII Filter
[User Review]  | 02/20/06 | by Terry Alford
LPR, or Light Pollution Reduction filters block the most common wavelengths of the light glow we often call “light pollution”. Most of this offendin. . .

Sirius Optics Minus Violet Filter
[User Review]  | 04/16/03 | by Curt Irwin
Over the past year there has been some serious debate within the achromatic refractor community as to how to deal with false color. One company has propose. . .

Sirius Optics MV-20 Chromatic Aberration Suppression Filter
[User Review]  | 04/16/03 | by Tony Cannata
The MV-20 is still relatively new, and many of the dealers may not yet have it on their websites, so you may have to call and ask. Just to get a few th. . .

Sirius Optics MV-20 Chromatic Aberration Suppression Filter
[User Review]  | 04/16/03 | by Tony Cannata
The MV-1 (minus-violet) eyepiece filter, developed by Al Misiuk of Sirius Optics, has been available for some time now and has gained significant popularit. . .

Sirius Optics NPC Neodymium Eyepiece Filter
[User Review]  | 06/20/03 | by David Knisely
Although color filters generally do have some limited applications for planetary viewing in bringing out certain detail, I have never a huge fan of them. I. . .

Sirius Optics Variable Filter System (VFS)
[User Review]  | 09/28/03 | by Sol Robbins
The Variable Filter System, or VFS, is a unique form of interference filter. The filter's glass has coatings deposited on one side of its surface and is un. . .

Sirius Optics Variable Filter System (VFS)
[User Review]  | 04/16/03 | by Sol Robbins
This is one nice little piece of equipment. It has a simple and elegant design. It is anodized aluminum with a flat black finish. This housing has 1.25" in. . .

Useful Filters for Viewing Deep-Sky Objects
[User Review]  | 04/16/03 | by David Knisely
The broad-band "Light-pollution Reduction (LPR) filters are designed to improve the visibility of a variety of Deep-Sky objects by blocking out the common . . .

Zeiss Filters
[User Review]  | 06/17/03 | by Gary Beal
I have been thinking for some time now to share my experiences with the selection of filters designed and manufactured by Zeiss. It has taken some years t. . .

Zhumell SEE IT ALL Telescope Filter Set
[User Review]  | 12/29/09 | by Michael Foegelle
The Zhumell SEE IT ALL Telescope Filter Set consists of four filters, a Sky-Glow filter, a UHC (Ultra High Contrast) filter, an O-III filter, and a. . .

Zhummel See It All Filter Set
[User Review]  | 12/11/09 | by Williard Champagne
The first thing I looked at was Jupiter with my 2" 30 mm eye piece which provides 50X power. . First I looked at it with. . .

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Tuesday, February 9, 2010

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