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Old 12-17-2012, 01:40 AM #17
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Default Re: Hercules lens scratched? Please help me !!

Hi RA_ Pierce!
What You mean with "90% alcohol"?
Do You mean that I must mix 90% of isoprophilic alcohol and 10% of distilled water?
I always used pure isoprophilic alcohol, but I have tried also Canon professional lens cleaner solution (that is more or less the same thing).
I have done Your suggested procedure many many times, with the only difference that I used the cotton with much much liquid inside, but I have removed it with the other side of the q-tip very quickly! I have never touched the cotton with the hands, and I have changed the q-tip for every cleaning!


Richard.


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Old 12-17-2012, 02:00 AM #18
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Default Re: Hercules lens scratched? Please help me !!

Quote:
Originally Posted by Minamoto Kobayashi View Post
Hi RA_ Pierce!
What You mean with "90% alcohol"?
Do You mean that I must mix 90% of isoprophilic alcohol and 10% of distilled water?
I always used pure isoprophilic alcohol, but I have tried also Canon professional lens cleaner solution (that is more or less the same thing).
I have done Your suggested procedure many many times, with the only difference that I used the cotton with much much liquid inside, but I have removed it with the other side of the q-tip very quickly! I have never touched the cotton with the hands, and I have changed the q-tip for every cleaning!


Richard.
If you have the pure stuff then that is ok. The highest percentage I can find locally is 91% so that is why I recommend it.
I don't use any solutions except alcohol for my lenses because in the past I have gotten poor results from commercial lens cleaners.

Try using less liquid. Sometimes if I get the lens too wet it does not clean well even if I dry it quickly. When I do it, I use a small amount so the alcohol evaporates from the lens within a second or two.
From the pictures you showed us, the lens still looks like it has some residue on it (I can tell by the streaks and irregularity of the surface reflections).

What I mean by using the q-tip only one time is that as soon as the cotton comes into contact with the lens, it is contaminated. Applying the same swab to the lens again will only spread some of the junk around.
The way I do it is: dip, swipe, throw away, check beam. dip, swipe, throw away, check again... In a repetitive motion. It also helps to swipe in only one direction on the lens.

For very dirty optics I am usually not afraid to apply light pressure to rub off anything sticky but afterwards I always use the procedure above.

I hope this helps!
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Old 12-17-2012, 03:50 AM #19
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Default Re: Hercules lens scratched? Please help me !!

here is an unconventional way I clean lenses ( this only works for residue )
Take a peace of scotch tape and place it one the lens and gently rub it down wait 5 seconds and peal it off.
People say this is a bad idea but i have never had a problem doing this.
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Old 12-17-2012, 04:44 AM #20
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Default Re: Hercules lens scratched? Please help me !!

Mmm ... I have tried everything mentioned above, but nothing works.
I have wasted 100+ q-tips and a couple of isoprophilic alcohol, but the things goes worst everytime that I try to do anything on the lens.
In my modest opinion, the AR coating is damaged and time after time is leaving the glass surface.
I have also tried a similar technique that You have just suggested me with teflon tape, but nothing happened. As last chance I will try Your suggested method!

Thank to everyone.

Richard.
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- Jayrob Aurora Stainless Steel 18650 445nm 891 mW Average 950 mW Peak
- Jayrob Frankenstein 445nm 2875 mW Average 3108 mW Peak With Modified Recoated Laserglow 10x Beam Expander
- Jetlaser PL-E Pro Focusable 445 nm 4000 mW Peak 3500 mW Average With Jetlaser 10x Beam Expander
- Mrcrouse Zaser Black Anodized Custom Head/Pill 445 nm 4970 mW Peak 4670 mW Average With Laserglow Modified Recoated 10x Beam Expander
- Sinner Cypreus IIIb 450nm 4757mW With Three Elements Glass Lenses And Adapted Linos 10x Beam Expander
- Sinner Cypreus II XL Gold Plated 24k 465nm 4200 mW Peak With Three Elements Glass Lenses
- CDBEAM Blue Balista 467nm 5088mW Optical Corrected 8 Lenses System
- CDBEAM Verde Volcano 520nm 2600 mW Dual Diode Build With PBS, Corrective Optics, Variable Output Power And 10x Variable Magnification Linos Beam Expander
- Laserglow Hercules 600 532nm 650 mW With Adapted 8x Linos beam expander
- Jayrob Aurora Stainless Steel 18650 532nm 195mW Peak 181 mW Average
- Jayrob Aurora Stainless Steel 18650 635nm 284 mW Peak 271 mW Average
- Sci-Fi Lasers Arcane II 635nm Light Gray Metallic Powder Coated 675 mW Peak 645 mW Average With Three Elements Glass Lenses
- Jayzereer C-Mount Red Mag Build 650nm 1600 mW

- Aurora SH-032 Stainless Steel 160 Lumens
- Nitecore TN36UTvn Modded Ultra-Directive 1 MLux !!
- Fenix TK75vnQ Modded Ultra Flood & Throw 14.000 Lumens
- Fire-Foxes FF4 6000 Lumens

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