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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Tutorial-Foolproof way to Clean Optics
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<blockquote data-quote="bruce_ventura" data-source="post: 924355" data-attributes="member: 34084"><p><span style="font-family: 'Calibri'"><span style="font-size: 12px">Losthwy, </span></span><span style="font-family: 'Calibri'"><span style="font-size: 12px">I use a similar method for cleaning my glasses. I'm open-minded, so I tried your method on an old bino that I give to friends when we go hiking. I got the lenses real dirty by 1) applying a greasy thumbprint, followed by sprinkling dusty soil from the backyard on the lens, following by fogging the lens using my breath. </span></span></p><p></p><p><span style="font-family: 'Calibri'"><span style="font-size: 12px">Step 1. Yes, the tap warm tap water seemed to remove most of the dust. I am concerned that some abrasive dust remains but is not visible because the lens is wet. If so, the next step would scratch the lens.</span></span></p><p></p><p><span style="font-family: 'Calibri'"><span style="font-size: 12px">Step 2. Yes, rubbing with a clean lens cloth saturated with 91% isopropyl alcohol (IPA) removed all of the grease. My fingers were clean (I had just washed them). The lens dried quickly and looked very clean. I was tempted to stop there, but kept going.</span></span></p><p></p><p><span style="font-family: 'Calibri'"><span style="font-size: 12px">Steps 3-5. Rinsing again with IPA, tap water and distilled water left the lens completely wet. From your description, I was expecting the lens to be dry. I then resorted to step 2 again to get the lens dry. I'm not sure what the value of Steps 3-5 is. Please clarify. What did I do wrong?</span></span></p><p></p><p><span style="font-family: 'Calibri'"><span style="font-size: 12px">I have several other comments. First, this method goes though lots of lens cloths. I used a brand new one. My experience is that they get dirty pretty fast. Once dirty, the leave a film whenever they are used to clean a lens. Second, I would need a clean lens cloth, and generous amounts of IPA, tap water and possibly distilled water to use this process. I'm not likely to have all of those items anywhere except at home. I need to clean lenses in the field more often than at home. Third, running water over the bino eyepiece left the inside of the eyecup wet, and this sliding part is impossible to dry quickly. Later a drop of water ran from the eyecup onto the lens. </span></span></p><p> </p><p><span style="font-family: 'Calibri'"><span style="font-size: 12px">Like a lot of folks, I've developed a method that I can use at home <u>and</u> in the field. My method produces a pristine, clean lens and does not use a lot of materials. Most importantly, it does not scratch the lens. Repeatedly rubbing a dusty lens with a lens cloth or Lens Pen eventually scratches and damages the anti-reflection coating. My method uses a lens brush, lens tissue, plastic tweezers and a fast drying lens cleaning fluid. I didn't learn anything from this trial to make me want to change methods.</span></span></p></blockquote><p></p>
[QUOTE="bruce_ventura, post: 924355, member: 34084"] [FONT=Calibri][SIZE=3]Losthwy, [/SIZE][/FONT][FONT=Calibri][SIZE=3]I use a similar method for cleaning my glasses. I’m open-minded, so I tried your method on an old bino that I give to friends when we go hiking. I got the lenses real dirty by 1) applying a greasy thumbprint, followed by sprinkling dusty soil from the backyard on the lens, following by fogging the lens using my breath. [/SIZE][/FONT] [FONT=Calibri][SIZE=3]Step 1. Yes, the tap warm tap water seemed to remove most of the dust. I am concerned that some abrasive dust remains but is not visible because the lens is wet. If so, the next step would scratch the lens.[/SIZE][/FONT] [FONT=Calibri][SIZE=3]Step 2. Yes, rubbing with a clean lens cloth saturated with 91% isopropyl alcohol (IPA) removed all of the grease. My fingers were clean (I had just washed them). The lens dried quickly and looked very clean. I was tempted to stop there, but kept going.[/SIZE][/FONT] [FONT=Calibri][SIZE=3]Steps 3-5. Rinsing again with IPA, tap water and distilled water left the lens completely wet. From your description, I was expecting the lens to be dry. I then resorted to step 2 again to get the lens dry. I’m not sure what the value of Steps 3-5 is. Please clarify. What did I do wrong?[/SIZE][/FONT] [FONT=Calibri][SIZE=3]I have several other comments. First, this method goes though lots of lens cloths. I used a brand new one. My experience is that they get dirty pretty fast. Once dirty, the leave a film whenever they are used to clean a lens. Second, I would need a clean lens cloth, and generous amounts of IPA, tap water and possibly distilled water to use this process. I’m not likely to have all of those items anywhere except at home. I need to clean lenses in the field more often than at home. Third, running water over the bino eyepiece left the inside of the eyecup wet, and this sliding part is impossible to dry quickly. Later a drop of water ran from the eyecup onto the lens. [/SIZE][/FONT] [FONT=Calibri][SIZE=3]Like a lot of folks, I’ve developed a method that I can use at home [U]and[/U] in the field. My method produces a pristine, clean lens and does not use a lot of materials. Most importantly, it does not scratch the lens. Repeatedly rubbing a dusty lens with a lens cloth or Lens Pen eventually scratches and damages the anti-reflection coating. My method uses a lens brush, lens tissue, plastic tweezers and a fast drying lens cleaning fluid. I didn’t learn anything from this trial to make me want to change methods.[/SIZE][/FONT] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Tutorial-Foolproof way to Clean Optics
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