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Received the third BRAND NEW Canon 70-300mm f/4-5.6 IS. II USM
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Jan 1, 2021 19:17:06   #
picturemom
 
I sent the other 2 lenses back because of dust in both lens. This lens has I believe dust on the outside of the lens. I used the pen like cleaner per directions in a circular motion withe soft tip. I am not sure if it is inside the lens. I did a sensor cleaner put my 24-70 lens on and did not see any dust.
Put on the new 70-300 and I see dust. Is there anything safe to use on the front side and back side
of the lens for cleaning them. I have alcohol wipes, but I do not want an issue if I return it AGAIN if indeed it is on the inside?
Reason I ask is because I really want to make sure it is on inside and not outside.
It takes a good picture, but for $549, I do not want dust inside. Any suggestions would be helpful before I return? Anybody have to send a lens back three times? Did you give up and forget about buying the lens?

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Jan 1, 2021 19:41:27   #
martinfisherphoto Loc: Lake Placid Florida
 
..

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Jan 1, 2021 20:13:18   #
imagemeister Loc: mid east Florida
 
picturemom wrote:
I sent the other 2 lenses back because of dust in both lens. This lens has I believe dust on the outside of the lens. I used the pen like cleaner per directions in a circular motion withe soft tip. I am not sure if it is inside the lens. I did a sensor cleaner put my 24-70 lens on and did not see any dust.
Put on the new 70-300 and I see dust. Is there anything safe to use on the front side and back side
of the lens for cleaning them. I have alcohol wipes, but I do not want an issue if I return it AGAIN if indeed it is on the inside?
Reason I ask is because I really want to make sure it is on inside and not outside.
It takes a good picture, but for $549, I do not want dust inside. Any suggestions would be helpful before I return? Anybody have to send a lens back three times? Did you give up and forget about buying the lens?
I sent the other 2 lenses back because of dust in ... (show quote)


I really have no idea what you are talking about I hope others do - - but I have an idea you are worrying about things that are irrelevant for serious concern .....I have this lens - it is a GREAT lens !
.

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Jan 1, 2021 21:00:58   #
Longshadow Loc: Audubon, PA, United States
 
picturemom wrote:
...
...
Anybody have to send a lens back three times? ...

I didn't even look inside my Sigma zoom or Canon 50mm when I received them.
I just used them. They work great.

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Jan 1, 2021 21:56:31   #
Drbobcameraguy Loc: Eaton Ohio
 
picturemom wrote:
I sent the other 2 lenses back because of dust in both lens. This lens has I believe dust on the outside of the lens. I used the pen like cleaner per directions in a circular motion withe soft tip. I am not sure if it is inside the lens. I did a sensor cleaner put my 24-70 lens on and did not see any dust.
Put on the new 70-300 and I see dust. Is there anything safe to use on the front side and back side
of the lens for cleaning them. I have alcohol wipes, but I do not want an issue if I return it AGAIN if indeed it is on the inside?
Reason I ask is because I really want to make sure it is on inside and not outside.
It takes a good picture, but for $549, I do not want dust inside. Any suggestions would be helpful before I return? Anybody have to send a lens back three times? Did you give up and forget about buying the lens?
I sent the other 2 lenses back because of dust in ... (show quote)


There is a certain amount of dust in every lens I own. Even my 9 month old 105mm micro vr from Nikon bought new. You have to search for it but its there. All my lenses take great pgotos with the dust and I'm a pizel peeping numbskull. Best of luck.

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Jan 1, 2021 21:58:17   #
picturemom
 
I am speaking about receiving a 3rd brand new lens with dust in it. When you look through the lens to take a picture you see dust one the first lens received and the lint on the 2nd new lens replacing the first and now a third replacement and there is dust and spots when you look through this lens also. My question was is there anyway of cleaning the new lens front glass and rear glass besides a brush
And air. Canyou use a liquid cleaner on the glasswith no problems, if I havde to send it back.
Did I explain it better?
Thank you

Reply
Jan 1, 2021 22:05:35   #
Drbobcameraguy Loc: Eaton Ohio
 
picturemom wrote:
I am speaking about receiving a 3rd brand new lens with dust in it. When you look through the lens to take a picture you see dust one the first lens received and the lint on the 2nd new lens replacing the first and now a third replacement and there is dust and spots when you look through this lens also. My question was is there anyway of cleaning the new lens front glass and rear glass besides a brush
And air. Canyou use a liquid cleaner on the glasswith no problems, if I havde to send it back.
Did I explain it better?
Thank you
I am speaking about receiving a 3rd brand new lens... (show quote)


I use Nikon and Zeiss lens wipes. Both are fine for all optics. I use them on the front and back of all my lenses. Also my eyeglasses. Have never had an issue.

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Jan 1, 2021 22:08:01   #
Drbobcameraguy Loc: Eaton Ohio
 
picturemom wrote:
I am speaking about receiving a 3rd brand new lens with dust in it. When you look through the lens to take a picture you see dust one the first lens received and the lint on the 2nd new lens replacing the first and now a third replacement and there is dust and spots when you look through this lens also. My question was is there anyway of cleaning the new lens front glass and rear glass besides a brush
And air. Canyou use a liquid cleaner on the glasswith no problems, if I havde to send it back.
Did I explain it better?
Thank you
I am speaking about receiving a 3rd brand new lens... (show quote)



Reply
Jan 1, 2021 22:09:14   #
Drbobcameraguy Loc: Eaton Ohio
 
picturemom wrote:
I am speaking about receiving a 3rd brand new lens with dust in it. When you look through the lens to take a picture you see dust one the first lens received and the lint on the 2nd new lens replacing the first and now a third replacement and there is dust and spots when you look through this lens also. My question was is there anyway of cleaning the new lens front glass and rear glass besides a brush
And air. Canyou use a liquid cleaner on the glasswith no problems, if I havde to send it back.
Did I explain it better?
Thank you
I am speaking about receiving a 3rd brand new lens... (show quote)



Reply
Jan 1, 2021 22:09:28   #
Bill_de Loc: US
 
Drbobcameraguy wrote:
I use Nikon and Zeiss lens wipes. Both are fine for all optics. I use them on the front and back of all my lenses. Also my eyeglasses. Have never had an issue.




---

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Jan 1, 2021 22:21:39   #
Longshadow Loc: Audubon, PA, United States
 
I use Zeiss lens wipes also.

Reply
 
 
Jan 2, 2021 07:52:52   #
DebAnn Loc: Toronto
 
picturemom wrote:
I sent the other 2 lenses back because of dust in both lens. This lens has I believe dust on the outside of the lens. I used the pen like cleaner per directions in a circular motion withe soft tip. I am not sure if it is inside the lens. I did a sensor cleaner put my 24-70 lens on and did not see any dust.
Put on the new 70-300 and I see dust. Is there anything safe to use on the front side and back side
of the lens for cleaning them. I have alcohol wipes, but I do not want an issue if I return it AGAIN if indeed it is on the inside?
Reason I ask is because I really want to make sure it is on inside and not outside.
It takes a good picture, but for $549, I do not want dust inside. Any suggestions would be helpful before I return? Anybody have to send a lens back three times? Did you give up and forget about buying the lens?
I sent the other 2 lenses back because of dust in ... (show quote)


Dear Picturemom,
When you sent the first 2 lenses back to Canon, did you receive any feedback from them regarding the dust - any explanation? It would seem to me that dust inside several versions of the same lens would be a manufacturing problem. Clearly from the responses to your post, other photographers have not experienced such an issue. If you have carefully cleaned both ends of the outside of your lens and then shot several images, what is the result? Do you see dust spots on those images? If the images look good, I would think you do not have a problem.

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Jan 2, 2021 07:56:08   #
connievloutely Loc: Quaker State (PA)
 
Maybe your mirror is dusty. This would be why you do not see dust in the photo but in the view finder.

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Jan 2, 2021 08:29:53   #
agillot
 
try using your home vacuum cleaner with hose .i cant believe send 2 lenses back for outside dust .when lenses have finger print like spots , old fashion windex , moist towel with it , not spray on .

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Jan 2, 2021 09:25:16   #
leftj Loc: Texas
 
picturemom wrote:
I am speaking about receiving a 3rd brand new lens with dust in it. When you look through the lens to take a picture you see dust one the first lens received and the lint on the 2nd new lens replacing the first and now a third replacement and there is dust and spots when you look through this lens also. My question was is there anyway of cleaning the new lens front glass and rear glass besides a brush
And air. Canyou use a liquid cleaner on the glasswith no problems, if I havde to send it back.
Did I explain it better?
Thank you
I am speaking about receiving a 3rd brand new lens... (show quote)


Sounds more like a dirty sensor.

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