Problem with my 18-55 kit lens

[wtfmate]

Hi everyone,

I just picked up a 20d 2 days ago. I brought the kit home, charged the battery, turned it on, and the first one I got had a bad pixel. So I went and exchanged it and got another one, now this one is having a weird problem with the lens. This happens if i take any pics around light's

Example:
http://img.photobucket.com/albums/v117/midorigreen/IMG_1277copy.jpg

Does anyone have any idea whats wrong with it? Is it the camera or the lens? I might have to goto bestbuy for my 3rd 20d..

[defordphoto]

What kind of filter have you attached to the lens?

[tommykjensen]

Did You shoot raw and if so what did you use to convert it? There are a couple of threads about the lack of quaility using either EVU or DPP for conversion and results was similar to this one.

Link: http://photography-on-the.net/forum/showthread.php?t=47880&highlight=

[wtfmate]

No filter was used.

This has also happened to another guy from another forum, all his pics that have lights around em, it happens, he brought it to a camera shop, and they had no idea what was wrong with it.

These wernt shot on raw mode

Some said it could be the sensor, some said the lens, i really have no idea, ive only had it for 2 days..

any other help would be appreciated

[robertwgross]

On that image, where is the bad pixel?

---Bob Gross---

[Jon]

On that image, where is the bad pixel?

---Bob Gross---

He'd already swapped out that camera . . . this is the new one.

[cmM]

I'd guess it's the lens. Go to a camera store and put on another lens see if you still get this.

[Jon]

Is the lens clean and free from any film or residue? Was the air clean? Looks too pronounced to be chromatic aberration from the lens - more like atmospheric refraction. In any case, I think it's situational - shooting into bright, intense lights against a dark background. You shouldn't see anything like that in normal shooting.

[snibbetsj]

The rainbows around the lights look like diffraction patterns. The kit lens isn't well known for its optical quality, particularly under rather poor lighting conditions such as this. I'd try a different lens (not a kit lens, try a 50 f1.8 if you can find one).

Jeff

[FlyingPete]

I have seen this when I had some moisture on the inside of one of my lenses, that condensated onto the glass. It happened a few days after working in a particular hot damp environment, a couple of days in the old hot water cylinder cupboard fixed it (warm and dry!).

However if it is brand new, I would hope you had no moisture in it!

[wtfmate]

The camera is only 2 days old, and it hasnt been around or near any water or moisture, it is like the 70's all day around here as of right now, so I wouldnt think the temperature/humidity could affect it much

In all cases, this happens when shooting pics and a light can be seen, same happened to someone else, he was in a park, taking pics of the park, there was lamp's all around, they all had little rainbow circles around them all.

Ill probably be heading to bestbuy later to see if i can try out a different 18-55

[wtfmate]

few other's

http://sweetcarz.com/albums/album39/IMG_1338_copy.jpg

http://sweetcarz.com/albums/album39/IMG_1345_copy.jpg

[Steven M. Anthony]

Just a guess--but I wonder if the lens got properly coated.

[sparker1]

I have no idea what causes this, but if they made a special filter that did the same thing, it would sell.

[wtfmate]

I have no idea what causes this, but if they made a special filter that did the same thing, it would sell.

haha, then trade me a stock 18-55 kit lens, im located in Clearwater :P

[shiningstardv]

My suggestion is to sell that piece of crap kit lens. I got so sick of mine weighing down my camera bag I put it on eBay. The auction ended today, and I just got $98.07 for it plus $7.25 shipping!! I was amazed at how much it went for! Here is the URL (http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3852318651&ssPageName= ADME:B:EOAS:US:3) of my item if you'd like to see for yourself.

Then with the money, put it toward a Tamron f/2.8 28-75mm lens. Or if you don't want to spend the extra $200, buy a Canon f/1.8 50mm prime lens. That is a wonderful lens and will teach you plenty about photography. I know my 50mm is helping me learn a ton because it forces you to one focal length, so you really think about your shot composition and can focus on depth-of-field and shutter speed/ISO etc.

As for those rainbow halos, it's kind of a cool effect! Although I couldn't begin to tell you what is wrong aside from the fact that the kit lens is not known for its quality. Nonetheless, it should not be doing that. I would try exchanging it at the store maybe? Are you within your return period at the store where you bought it?

[commando]

My kit lens doesn't do that, take it and the camera to the store you bought it to have it checked. If you bought it on the net, email them.

I've found the kit lens to be fine, especially for the price.

[wtfmate]

My suggestion is to sell that piece of crap kit lens. I got so sick of mine weighing down my camera bag I put it on eBay. The auction ended today, and I just got $98.07 for it plus $7.25 shipping!! I was amazed at how much it went for! Here is the URL (http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3852318651&ssPageName= ADME:B:EOAS:US:3) of my item if you'd like to see for yourself.

Then with the money, put it toward a Tamron f/2.8 28-75mm lens. Or if you don't want to spend the extra $200, buy a Canon f/1.8 50mm prime lens. That is a wonderful lens and will teach you plenty about photography. I know my 50mm is helping me learn a ton because it forces you to one focal length, so you really think about your shot composition and can focus on depth-of-field and shutter speed/ISO etc.

As for those rainbow halos, it's kind of a cool effect! Although I couldn't begin to tell you what is wrong aside from the fact that the kit lens is not known for its quality. Nonetheless, it should not be doing that. I would try exchanging it at the store maybe? Are you within your return period at the store where you bought it?

wow, I cant believe someone would pay that much for this pos lens :P

I'd probably want to keep this lens though, cause I have a 4 year warranty on this camera and lens at the shop, so if anything ever goes wrong with it, id like to still have the original lens to it

The rainbow was cool at first, now it got super annoying, I am gonna goto the store today after work and return it for another one, I hope it doesnt have this problem

[wtfmate]

not that anybody cares, but i got a new 18-55 kit lens today, itll only be for temporary till i can get the 28-105 :D

[commando]

not that anybody cares, but i got a new 18-55 kit lens today, itll only be for temporary till i can get the 28-105 :D

Does the new one work better?

[Ogrt48]

It's not a pos.. it's great for its value specially at f8. Just because yours is screwed doesn't mean its bad. Go to some forums and ask people to post pictures they took with this lens and you'll see.
You get what you pay for, don't be cheap, buy an L lens.

[sparker1]

Darn, you replaced it before I could drive over to Clearwater and trade for it. Better luck with the new one.

[Jon]

Now that you've replaced it . . .
Since this didn't seem to occur on all the lights in your images, I wonder if any of the lights had some kind of specular coating on them that might have caused the refraction?

[wtfmate]

Now that you've replaced it . . .
Since this didn't seem to occur on all the lights in your images, I wonder if any of the lights had some kind of specular coating on them that might have caused the refraction?

Well, when I went and returned the lens yesterday, I took a picture of a light, and showed the employee's, then after I switched it to a different lens, went and took a picture of the same exact lens, and there was no halo thing around the light

[Steven M. Anthony]

Now that you've replaced it . . .
Since this didn't seem to occur on all the lights in your images, I wonder if any of the lights had some kind of specular coating on them that might have caused the refraction?

If you look closely, you can see that the halo was, indeed, around all the lights.

wtfmate: did you get a new camera AND lens, or just a new lens?

[wtfmate]

If you look closely, you can see that the halo was, indeed, around all the lights.

wtfmate: did you get a new camera AND lens, or just a new lens?

correct, they are around all the lights, you jsut have to look really close

i got just a new lens, they didnt have anymore 20d's in stock, so they opened up a 300d and gave me that lens

[commando]

I took a bunch of shots with my kit lens and the Tamron 28-75. You can see the side-by-side comparison here (http://www.kiwirant.co.nz/gallery/TamronTestShots/Flowers/index.html). To my eyes, the Tamron's better, but only slightly better, and at around 4 times the price is fantastic value.

I'd be interested to hear if anyone can explain why the "incredible" tamron doesn't appear to perform any better than the "horrible" kit lens. I really hope it's me, because otherwise it was an expensive mistake.