DSLRUsers.com

Calling all Nikon & Canon users.

Does anyone have a little crack on the little "glass" window on top of the lens?

The window is located between the wording (for Nikon glass) "Nikon/ AF Nikkor" and the lenght as e.g: "28mm/ 1:2.8" the glass window shows the focus range in ft= feet or m= metre.

If you have one or spotted it on your glass, can you tell me what was happened to that crack?

Or

What do you think about the crack caused by? by force? dropping the lens? or get something heavy knocked over it?

Does the above acts affect the capability of the lens? especially it's a Nikkor 28-70/ 2.8 AF-S?

Finally, user wanted to obtain warranty, how do you explain (good excuses) to the Service Center your lens is faulty with the crack present? and its fault does not relate to the crack? Especially with AF-S and its focussing system (refer to 28-70/ 2.8 AF-S), it's a new lens, just about more than one month in use

I'm interested in hearing your opinion.

My Nikkor 80-200mm F2.8 suffers from this problem.

It is about third hand now and i bought it this way (from a forum member) so i don't know how it happened, but it does not affect the lens and other than that it is working fine and perfectly sharp.

Killakoala wrote:My Nikkor 80-200mm F2.8 suffers from this problem.

It is about third hand now and i bought it this way (from a forum member) so i don't know how it happened, but it does not affect the lens and other than that it is working fine and perfectly sharp.

The 80-200/2.8 which you have is not an AF-S lens.
And that 80-200 is an "old man"

At a cursory glance I have 7 'window' lenses ranging up to 15 years in age. None have a crack in them. I would imagine these crack when hitting something, I doubt it is age or UV if my 15 yr old lens doesn't have a crack in it.

birddog114 wrote:And that 80-200 is an "old man"

I'm older than Steve's lens!

Birddog I know that Wendell has one on at least one of his lenses, as I saw it last weekend. Hopefully he will respond to this thread.

Oneputt wrote:Birddog I know that Wendell has one on at least one of his lenses, as I saw it last weekend. Hopefully he will respond to this thread.

Doesn't suprise me

I checked all of mine and they area all ok, I'd guess the force would have to be fairly concentrated, like the corner of a table or something to break the glass.

Oneputt wrote:Birddog I know that Wendell has one on at least one of his lenses, as I saw it last weekend. Hopefully he will respond to this thread.

John. Maybe Wendell is the member wit the warranty claim

Wendell has a cracked window problem, ya say?

What are the odds?






All jokes aside, I reckon it'd take a pretty concentrated knock directly on that area to cause it to crack. I don't think a bump or impact anywhere else would do it. On the other hand, that really shouldn't affect the performance of the lens itself, unless that bump was a reasonably aggressive one (ie: Wendellification)

In defence of Wendell, he is a working pro (not the Kings Cross type), so may ask his equipment to endure a bit more than enthusiast photographers ask of theirs

If only it were glass - I suspect plastic is more likely. I have never broken one, but imagine that it would be rotten luck or careless handling that would cause it to be broken.

I would not even try a warranty claim on the AF-S issue with a lens that has physical damage even if the AF-S issue was pre-existing. If I have a problem with something, I treat it with kid to preserve it in its original state until such time as it is returned for warranty work. If the knock came first, what is not to say that the AF-S problem is a result of that?

In either case, the owner of said lens has, IMO, been careless.

It sounds to me like an insurance claim, not a warranty claim.

If I am careless, I pay.

Cheers

losfp wrote:All jokes aside, I reckon it'd take a pretty concentrated knock directly on that area to cause it to crack. I don't think a bump or impact anywhere else would do it. On the other hand, that really shouldn't affect the performance of the lens itself, unless that bump was a reasonably aggressive one (ie: Wendellification)

Whatever impact or force, it may caused the malfunction of its focus ring and AF-S.

If its focus ring or AF-S is malfunction, how can we have good explanations or reasons to Nikon Service Center, so they will accept it as manufacturer's fault instead of mis-used or abused by user.