Sigma Coating Problem.

[DonE]

I've only had my Bigma 50-500mm sigma lens for about a year and a half. Yesterday morning I went out to shoot some surfing pics. I noticed that the coating under the lens on the zoom part of the barrel was peeling off. It's on the part of the lens that slides into the lens, so you can see the peeling paint on the inside of the lens. I was able to work with it for the shots, but notified sigma this morning. They want me to send them the lens in order to check it out. Anyone else have any problems like this.

I can also see a lot of dust on the inside of the lens. I know zooms are not weather sealed and this happens, just did not think they would suck in that much dust in that time frame!!

My question is can the inside of the lens be cleaned. I am sure it will cost a few bucks to get it cleaned!!

[superdiver]

I have the same problem with my 70-200...stil works fine, but the resale option has just flown out the window....LOL

[Curtis N]

This part of your description is confusing.I noticed that the coating under the lens on the zoom part of the barrel was peeling off. It's on the part of the lens that slides into the lens, so you can see the peeling paint on the inside of the lens.My Sigma 70-200 is losing its paint near the tripod collar, where it has worn off in places from use and is starting to peel back from there.

In my case, it's merely cosmetic, but Sigma needs to redesign their paint to rectify this problem.

[dod]

My Sigma 70-200 is losing its paint near the tripod collar, where it has worn off in places from use and is starting to peel back from there.


Same here, mine does get abused quite a bit though.

[purelithium]

When I buy a used lens, I never take cosmetic things like peeling paint or scratches on the lens. As long as they have no impact on the image quality, I have no problems. It adds character to a lens.

[DonE]

Mine is peeling around the collar as well as the barrel. On the 50-500mm the barrel zooms out when you twist the zoom ring. Well my paint is peeling under the part that zooms out of the lens. So when I done zooming and I go to twist the lens the part that the paint is peeling goes on the inside of the lens and you can look down into the lens and see the peeling paint inside the lens. It's a pain and I don't know how long it's been peeling. I just found it. The warranty is for a year, but they want me to send it back to them so they can check it out. Will see what can be done.

I agree they need to find out what is causing the paint to peel on the lenses.

[Tee Why]

haven't had the paint on the sliding part of the barrel actually come off.
The dust inside of the lens should not show up in the shots, so I wouldn't worry about it, as it's the prints that matter to me.

[dod]

When I buy a used lens, I never take cosmetic things like peeling paint or scratches on the lens. As long as they have no impact on the image quality, I have no problems. It adds character to a lens.

you'd love mine then ;) After a day at the motocross, the glass is spotless though. Also shows the peeling beside the tripod collar mount.

http://www.eospics.com/huskys/IMG_0779.jpg

[purelithium]

nice, dod!

I'm not a huge freak for keeping my stuff clean/looking good. I like to USE my gear, and like it to look like it's been used well ;)

[Topalov Djura]

Same with my 1 year + 2 day Sigma 17-70 :(

[DonE]

Darn DOD, that's one dirty lens. So you don't think I should worry about it. I did have a chunk of the paint actually inside the lens, but think I worked it back out. It's just that it continues to peel!!

[GSH]

nice, dod!

I'm not a huge freak for keeping my stuff clean/looking good. I like to USE my gear, and like it to look like it's been used well ;)

Exactly. It's the difference between a photographer's lens and a collector's lens.

I'll never understand why people pay money for lenses and constantly worry about re-sale values when most normal peeps pay good money for a car and accept that 3 years down the line it'll be worth 50% of purchase price or less.

[Mr. Clean]

Strange - I've never had a paint problem with any of my Sigma's. Perhaps I'm being ultra-careful with them or something? I'm sure it's a knick or what not that starts the process..