Canon G10 lens scratches caused by automatic lens cover?

Started Dec 23, 2008 | Discussions
axelerator
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Canon G10 lens scratches caused by automatic lens cover?
Dec 23, 2008

Warning to all Canon G10 owners:

Recently I have discovered two small but distinct sets of parallel scratches on my new G10 outer lens surface just off center (above and below the horizontal center). This is a puzzle since I have not been in dusty environments and I always clean my lens with an air blower or soft cloth in circular motion.

With a little liquid paste thinly distributed over the lens I have now discovered that the automatic lens covers ALWAYS makes contact with the lens just off center and then rest on the lens covering about 30-40%. In my mind this qualifies as a faulty design.

Since I am now in warranty dispute with our local distributor (Canon South Africa) on having the entire lens replaced I wonder if anybody else has come across this problem already?

I don't remember this problem with my previous G9 & G7 where the lens cover was at a distinct distance above the outer lens surface.
Axel

AdamT
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Send it in - thats not normal
In reply to axelerator, Dec 23, 2008

I've thrashed mine since getting it a couple of months ago and there are no such marks, looks like a faulty lens shutter on yours, i'd send it in for repair and a new lens unit !
the cap on mine looks the same as the A650IS (G9) which is also very close

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axelerator
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Re: Send it in - thats not normal
In reply to AdamT, Dec 23, 2008

Adam-T wrote:

I've thrashed mine since getting it a couple of months ago and there
are no such marks, looks like a faulty lens shutter on yours, i'd
send it in for repair and a new lens unit !
the cap on mine looks the same as the A650IS (G9) which is also very
close

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That's fortunate. Are you sure your lens shutters on the G10 do not actually make contact with the lens?. A little lens cleaning fluid on the lens center and a shutdown shows this immediately in my case.

PS: I have already sent the camera to our suppliers (Canon SA) who have returned it with a comment that the cost of the lens is to my account.

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AdamT
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Re: Send it in - thats not normal
In reply to axelerator, Dec 23, 2008

That's fortunate. Are you sure your lens shutters on the G10 do not
actually make contact with the lens?.

if it had, it'd have wrecked the thing by now, it's been switched on and off hundreds of times and I compared the gap with the A650IS (by moving the blades with a fingernail and it looks the same

PS: I have already sent the camera to our suppliers (Canon SA) who
have returned it with a comment that the cost of the lens is to my
account.

I don't know how much leverage you have in SA regarding consumer protection but I'd not let that rest !!

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MikeAusA200
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not fit-for-purpose
In reply to AdamT, Dec 23, 2008

Adam-T wrote:

I don't know how much leverage you have in SA regarding consumer
protection but I'd not let that rest !!

In Australia if a product is not fit-for-purpose, you are entitled to a refund.

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axelerator
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Re: not fit-for-purpose
In reply to MikeAusA200, Dec 23, 2008

MikeAusA200 wrote:

Adam-T wrote:

I don't know how much leverage you have in SA regarding consumer
protection but I'd not let that rest !!

In Australia if a product is not fit-for-purpose, you are entitled to
a refund.

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Canon G7, G9, G10, Gee Wizz

Sure. The problem is proving that the scratches were categorically not caused by me or by my actions. It would be great if any other G10 owner out there can verify/testify that his lens shutter also actually touches the lens upon closing. It may not automatically lead to scratching the lens until larger dust/sand particles accidentally land onto the lens. In my mind if the lens shutter always touches the lens on closing it is a fundamental flaw.

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Dumb Blonde
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Axel
In reply to axelerator, Dec 23, 2008

I just asked my pro-photographer friend to inspect my G10 lens and all is well here. But I'm so sad to hear about your issues. Unfortunately, you may have a defective camera. Please keep us updated, Axel as this may be a potential G10 issue. Here is wishing you a positive and happy resolution.
--
Jada

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Lor
Lor
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Re: Axel
In reply to Dumb Blonde, Dec 23, 2008
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Why does every issue someone has with a camera is posted here like it's a fault with the entire line. It's hysterical.

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AdamT
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Its Slag the G10 month I'm afraid
In reply to Lor, Dec 23, 2008

Its Slag the G10 month I'm afraid :((((((( ..

Mine is fine and far more camera than the G9 was (or the LX3 is as a general cam) - it was enough to get me to part with the Fabulous A650IS which is really saying something !

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miladymarji
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Re: Axel
In reply to Lor, Dec 23, 2008

Nobody said it was the fault of the whole line. I believe the person just
wanted to know if anybody else had the same problem.
--
Milady

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xvimbi
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Re: Axel
In reply to miladymarji, Dec 23, 2008

miladymarji wrote:

Nobody said it was the fault of the whole line. I believe the person
just wanted to know if anybody else had the same problem.

Indeed. I happen to have a small scratch on my lens as well, and I have no clue how it got there, so I will be checking for what the OP observed as soon as I get home.

A lot of people are way too sensitive around here. I for one am grateful for the OP's post and similar posts.

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Best - MM

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Lor
Lor
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Re: Axel
In reply to miladymarji, Dec 23, 2008

miladymarji wrote:

Nobody said it was the fault of the whole line. I believe the person
just
wanted to know if anybody else had the same problem.
--
Milady

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re-read his post.

Warning to all Canon G10 owners* :

Recently I have discovered two small but distinct sets of parallel scratches on my new G10 outer lens surface just off center (above and below the horizontal center). This is a puzzle since I have not been in dusty environments and I always clean my lens with an air blower or soft cloth in circular motion.

With a little liquid paste thinly distributed over the lens I have now discovered that the automatic lens covers ALWAYS makes contact with the lens just off center and then rest on the lens covering about 30-40%. In my mind this qualifies as a faulty design.

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MikeAusA200
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Purpose of Owners Forum
In reply to Lor, Dec 23, 2008
  • " I wonder if anybody else has come across this problem already?"

Lor wrote:

Why does every issue someone has with a camera is posted here like
it's a fault with the entire line. It's hysterical.

????? Isn't the purpose of an Owners Forum to allow discussion with other owners to find out of a problem you have is a one-off, a frequently occurring problem or a unversal problem ?

How else do you find out, except by asking others to check if they have the problem you're experiencing ? That's all he did.

He had no way of knowing if all G10s had the lens cover touching the lens - but from a sample of one, he had no option but to assume all G10s are the same as his. It's not obvious except on close inspection.

If all G10s are like that, it's a design problem.

If in normal use - e.g. slight bumping on the front of the lens can cause the lens covers to be pushed back and contact the lens, then it's a design problem.

I know which response here I class as "hysterical".

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Zbig_T
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Re: Purpose of Owners Forum
In reply to MikeAusA200, Dec 23, 2008

How else do you find out, except by asking others to check if they
have the problem you're experiencing ? That's all he did.

He had no way of knowing if all G10s had the lens cover touching the
lens - but from a sample of one, he had no option but to assume all
G10s are the same as his. It's not obvious except on close inspection.

If all G10s are like that, it's a design problem.

If in normal use - e.g. slight bumping on the front of the lens can
cause the lens covers to be pushed back and contact the lens, then
it's a design problem.

Lens cover blades are shut into closed position by springs. Like Axelerator said - you can inspect the lens-blades clearance by gently pulling the blade (one at a time) from closed position with your fingernail. It's perfectly safe once done with appropriate caution. I've just found that, while they're not very far from the front element, they are certainly NOT touching it my G10 during normal operation. The inner side of the shutter halves is profiled into the shape of the front lens element.

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Peveli
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Re: Canon G10 lens scratches caused by automatic lens cover?
In reply to axelerator, Dec 24, 2008

axelerator wrote:

With a little liquid paste thinly distributed over the lens I have
now discovered that the automatic lens covers ALWAYS makes contact
with the lens just off center and then rest on the lens covering
about 30-40%. In my mind this qualifies as a faulty design.

How did you get the liquid paste off the back of the lens cover blades after your test?

Warranty service denial is a bit baffling. If you are right, it seems that blades touching lens would be evident to Canon. Did they say they weren't touching? If so, how did they explain how they know based on your test?

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axelerator
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Re: Its Slag the G10 month I'm afraid
In reply to AdamT, Dec 24, 2008

Adam-T wrote:

Its Slag the G10 month I'm afraid :((((((( ..

Mine is fine and far more camera than the G9 was (or the LX3 is as a
general cam) - it was enough to get me to part with the Fabulous
A650IS which is really saying something !

-- hide signature --

Please ignore the Typos, I'm the world's worst Typist

-- hide signature --

Canon G7, G9, G10, Gee Wizz

I am quite happy with the G10 in all other respects (and my previous G9 and the G7 before that)....

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axelerator
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Re: Purpose of Owners Forum
In reply to Zbig_T, Dec 24, 2008

Zbig_T wrote:

How else do you find out, except by asking others to check if they
have the problem you're experiencing ? That's all he did.

He had no way of knowing if all G10s had the lens cover touching the
lens - but from a sample of one, he had no option but to assume all
G10s are the same as his. It's not obvious except on close inspection.

If all G10s are like that, it's a design problem.

If in normal use - e.g. slight bumping on the front of the lens can
cause the lens covers to be pushed back and contact the lens, then
it's a design problem.

Lens cover blades are shut into closed position by springs. Like
Axelerator said - you can inspect the lens-blades clearance by gently
pulling the blade (one at a time) from closed position with your
fingernail. It's perfectly safe once done with appropriate caution.
I've just found that, while they're not very far from the front
element, they are certainly NOT touching it my G10 during normal
operation. The inner side of the shutter halves is profiled into the
shape of the front lens element.

-- hide signature --

Canon G7, G9, G10, Gee Wizz
That's what I thought initially until I tried the lens paste test.

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axelerator
New MemberPosts: 8
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Re: Canon G10 lens scratches caused by automatic lens cover?
In reply to Peveli, Dec 24, 2008

Peveli wrote:

axelerator wrote:

With a little liquid paste thinly distributed over the lens I have
now discovered that the automatic lens covers ALWAYS makes contact
with the lens just off center and then rest on the lens covering
about 30-40%. In my mind this qualifies as a faulty design.

How did you get the liquid paste off the back of the lens cover
blades after your test?

The liquid paste dries after a few minutes and I just gently brush it off with a soft cloth.

Warranty service denial is a bit baffling. If you are right, it
seems that blades touching lens would be evident to Canon. Did they
say they weren't touching? If so, how did they explain how they know
based on your test?

They did not admit or deny it but argued that the cover could only touch in the center of the lens - the highest point. My paste test was done only after the camera was returned and shows they touch from where the scratches appear all the way to the center. I plan to return the camera with this evidence after Canon SA open again in the New Year.

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Canon G7, G9, G10, Gee Wizz

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axelerator
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Re: Purpose of Owners Forum
In reply to axelerator, Dec 24, 2008

axelerator wrote:

Zbig_T wrote:

How else do you find out, except by asking others to check if they
have the problem you're experiencing ? That's all he did.

He had no way of knowing if all G10s had the lens cover touching the
lens - but from a sample of one, he had no option but to assume all
G10s are the same as his. It's not obvious except on close inspection.

If all G10s are like that, it's a design problem.

If in normal use - e.g. slight bumping on the front of the lens can
cause the lens covers to be pushed back and contact the lens, then
it's a design problem.

Lens cover blades are shut into closed position by springs. Like
Axelerator said - you can inspect the lens-blades clearance by gently
pulling the blade (one at a time) from closed position with your
fingernail. It's perfectly safe once done with appropriate caution.
I've just found that, while they're not very far from the front
element, they are certainly NOT touching it my G10 during normal
operation. The inner side of the shutter halves is profiled into the
shape of the front lens element.

That's what I thought initially until I tried the lens paste test....

-- hide signature --

Canon G7, G9, G10, Gee Wizz

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axelerator
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Re: Its Slag the G10 month I'm afraid
In reply to axelerator, Dec 24, 2008

axelerator wrote:

Adam-T wrote:

Its Slag the G10 month I'm afraid :((((((( ..

Mine is fine and far more camera than the G9 was (or the LX3 is as a
general cam) - it was enough to get me to part with the Fabulous
A650IS which is really saying something !

-- hide signature --

Please ignore the Typos, I'm the world's worst Typist

I am quite happy with the G10 in all other respects (and with my previous
G9 and the G7 before that)...

-- hide signature --

Canon G7, G9, G10, Gee Wizz

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