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[Official] OCN Camera Thread - Page 1723

post #17221 of 29551
It's sexytime with anything I can mount on it. No mirror flip + steady hand = shoot nifty at 1/5 all day.
post #17222 of 29551
Oh, also the Canon hand strap is super win on it. Thinking I will put it on my 50D too, the ETRSi will have to remain strapless for a bit because, well, the lugs are in weird spots with the speedgrip mounted.
post #17223 of 29551
Not a mark ii that I'm aware of.
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post #17224 of 29551
Well, I was able to partially disassemble the nikkor 75-300 I got. Since i did not have lens opener spanner wrench, I had to make do with what I could find in my toolbox at work... I was able to use the inside measure parts on the back of the caliper as a spanner and remove the front element group, I was also able to easily disassemble the rear lens mount and aperture control ring to get to the rear element group. Unfortunately a little bit of the fungus appears to be on the inside of the groups, which I was not able to get open with my makeshift spanner wrench, however I did get the majority of the fungus out of the way. I am also left with some haze that is in between the last elements that I was not able to remove either.

sorry for the cellphone pics, I just did not feel like having to bust out the DSLR and import photos etc etc.
the lens



in the lower left of the lens you can see the fungus still. That was inside the group, I could not get to it, but this is much better then how it looked before.


I took a few test shots with this lens after the cleaning, and as it stands now, the fungus that it has does not effect IQ in any way. I just want to do what I can to ensure that the fungus will not spread further.

I read that sitting it in sunlight for a day or two will kill the remaining fungus and prevent the spread. Is there any truth to this?

I can get access to a food dehydrator that would be large enough to fit this lens into. The dehydrator would be able to keep the lens at a constant temperature in a 100% moisture free environment, do you think it would be beneficial to subject this thing to 150*F of dehydrating overnight?

Also should I be worried about sticking this lens in a camera bag with my other lenses? I have read that fungus supposedly can spread. I have never had a lens infected with fungus before so I do not know whether there is any truth in any of this. I would rather be safe then sorry though.
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post #17225 of 29551
Quote:
Originally Posted by MistaBernie View Post
Not a mark ii that I'm aware of.
200 2.8 II? Yeah, it exists... It was just a cosmetic update though.
post #17226 of 29551
Quote:
Originally Posted by robchaos View Post
Well, I was able to partially disassemble the nikkor 75-300 I got. Since i did not have lens opener spanner wrench, I had to make do with what I could find in my toolbox at work... I was able to use the inside measure parts on the back of the caliper as a spanner and remove the front element group, I was also able to easily disassemble the rear lens mount and aperture control ring to get to the rear element group. Unfortunately a little bit of the fungus appears to be on the inside of the groups, which I was not able to get open with my makeshift spanner wrench, however I did get the majority of the fungus out of the way. I am also left with some haze that is in between the last elements that I was not able to remove either.

sorry for the cellphone pics, I just did not feel like having to bust out the DSLR and import photos etc etc.
the lens
[IMG]snip[/IMG]


in the lower left of the lens you can see the fungus still. That was inside the group, I could not get to it, but this is much better then how it looked before.

[IMG]snip[/IMG]
I took a few test shots with this lens after the cleaning, and as it stands now, the fungus that it has does not effect IQ in any way. I just want to do what I can to ensure that the fungus will not spread further.

I read that sitting it in sunlight for a day or two will kill the remaining fungus and prevent the spread. Is there any truth to this?

I can get access to a food dehydrator that would be large enough to fit this lens into. The dehydrator would be able to keep the lens at a constant temperature in a 100% moisture free environment, do you think it would be beneficial to subject this thing to 150*F of dehydrating overnight?

Also should I be worried about sticking this lens in a camera bag with my other lenses? I have read that fungus supposedly can spread. I have never had a lens infected with fungus before so I do not know whether there is any truth in any of this. I would rather be safe then sorry though.
I find white vinegar and a cotton bud are good at removing and killing fungus.
    
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post #17227 of 29551
post #17228 of 29551
Quote:
Originally Posted by dudemanppl View Post
200 2.8 II? Yeah, it exists... It was just a cosmetic update though.
I meant the one I could get was likely not a mark ii
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post #17229 of 29551
Quote:
Originally Posted by biatchi View Post
I find white vinegar and a cotton bud are good at removing and killing fungus.
That's what I used. White vinegar and those 1 time use lens wiping papers. Then I took a shop vac and sucked as much dust out of the body of the lens as I could before putting it back together. My problem is that I could not separate the element groups. Luckily most of the fungus did happen to be on the outer surfaces though. Honestly this lens was thrown in for free with some other stuff I bought, so I am not to concerned with it. It takes clear pictures and all I want to do at this point is make sure the fungus does not grow any further. My concern is whether or not it can spread to other lenses as I have read. To me that idea seems improbable to happen unless I stored all my lenses in a moist warm place constantly, but I don't want to risk it if there is a chance it could happen. Also does anyone have any input on whether sticking the lens in a temperature controllable dehydrator could do any good? Temp can go from 100* to over 300* in 10* increments.
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post #17230 of 29551
Wouldn't high temps affect adhesives used on the lens?
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