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Threads Tagged with hydrogen
  Thread / Thread Starter Last Post Replies Views Forum
A problem often seen in older lenses. Is it haze?
nonism127
03-07-2024 07:40 PM
by Wheatridger Go to last post
131,075 Pentax SLR Lens Discussion
Abstract M33 - The Triangulum
Colorado CJ
07-16-2021 09:56 AM
by 5ks Go to last post
8566 Post Your Photos!
Fungus? Worth fixing? (Multi-page thread, 3 pages total 1 2 3)
Cerebum
11-19-2020 06:51 AM
by ChristianRock Go to last post
422,639 Troubleshooting and Beginner Help
Nature First Image from My Observatory - The Rosette Nebula
Colorado CJ
01-12-2020 01:38 PM
by pbancr Go to last post
10664 Post Your Photos!
Nature The Melotte 15 Complex in Hydrogen-Alpha Light
Pete_XL
10-02-2019 11:49 AM
by Pete_XL Go to last post
4798 Post Your Photos!
North American and Pelican Nebula in Hydrogen-Alpha and RGB
fewayne
08-11-2019 07:00 AM
by tungal Go to last post
6559 Monthly Photo Contests
Night The Horsehead and the Flame - In Hydrogen Alpha
Colorado CJ
03-21-2019 06:13 AM
by eddie1960 Go to last post
141,038 Post Your Photos!
Help reversing thorium oxide on my lens. (Multi-page thread, 4 pages total 1 2 3 ... Last Page)
Prince Harbinger
07-12-2018 12:47 PM
by stevebrot Go to last post
497,536 Troubleshooting and Beginner Help
A Philosophic Question (Multi-page thread, 16 pages total 1 2 3 ... Last Page)
AggieDad
12-30-2016 07:02 AM
by pathdoc Go to last post
22711,886 General Photography
is it safe for lens? Hydrogen Peroxide and Household Ammonia (Multi-page thread, 2 pages total 1 2)
Chalupa
09-05-2012 07:10 AM
by Chalupa Go to last post
1933,929 Troubleshooting and Beginner Help
Misc VanDyke Blue printing process
LSPhotography
04-29-2010 10:41 PM
by LSPhotography Go to last post
13,685 Post Your Photos!

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