Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
08-07-2011, 07:12 AM   #1
Forum Member
Guayabero's Avatar

Join Date: Jan 2011
Photos: Gallery
Posts: 64
Picture artifacts

Hello,
I'm not sure exactly how to describe it, but I need some help. It is driving my nuts and ruining some of my shots. I've try wiping it with a cloth, a pencil and just today I used some liquid solution and this "mark" still persists.


Question: Is this inside the lenses, something I'd have to send back to the manufacturer?

Lenses:Tamron SP AF 17-50MM F/2.8 XR DI II LD

(click on the link) Left hand side, just below the horizon line, underneath the sun. There is this circular pattern, that I can't seem to get rid of.

Thanks!

https://picasaweb.google.com/117187595597398344536/DaniaBeachFL#slideshow/5638115186693040434

08-07-2011, 07:21 AM   #2
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
Doesn't look good. Do you see this with other lenses? Is that in the same place in all shots? If so, it's the sensor. If not, it's likely a lens issue.
08-07-2011, 07:40 AM   #3
Inactive Account




Join Date: Aug 2008
Location: Michigan, USA
Photos: Gallery | Albums
Posts: 7,485
You have a fuzzy on your sensor. Get a rocket blower.

https://www.pentaxforums.com/forums/pentax-dslr-camera-articles/121739-those-...ml#post1259109

08-07-2011, 09:40 AM   #4
Forum Member
Guayabero's Avatar

Join Date: Jan 2011
Photos: Gallery
Posts: 64
Original Poster
Thank you both for replying. The issue pretty much persists after using different lenses. I will try the rocket blower suggestion.

However, here is what I do not understand. I ran a test to check for dusk and it came out clear. Is this one of them circumstances where a censor clean kit needs to be purchased?

Thanks!

08-07-2011, 09:50 AM   #5
Veteran Member
kcobain1992's Avatar

Join Date: Dec 2010
Location: Bucharest, Romania
Photos: Gallery
Posts: 1,409
Adobe has a tool for Lightroom called "spot removal" that was designed specifically for this.
08-07-2011, 09:53 AM   #6
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
QuoteOriginally posted by Guayabero Quote
However, here is what I do not understand. I ran a test to check for dusk and it came out clear. Is this one of them circumstances where a censor clean kit needs to be purchased?
An O-ICK1 sensor cleaning kit was one of my first add-ons for my K20D. I heartily recommend it. Your dust-check results seem to indicate that it's not dust, but maybe some dried moisture that doesn't show as dust; or a (shudder) sensor stain. In fact, what I saw on your image looks much more like dried moisture than dust. I'm not sure what sensor stains look like. What is your camera? How old is it? Is it still under warranty?

My recommendation: Get and use the kit. (It's good for many many many uses, on any dSLR.) If that doesn't fix it, see about warranty service. Good luck!
08-07-2011, 10:04 AM   #7
Inactive Account




Join Date: Aug 2008
Location: Michigan, USA
Photos: Gallery | Albums
Posts: 7,485


I've seen them in all shapes and sizes. Some have even looked like letters of the alphabet. Once I thought there was a bird in the sky (even though I don't remember seeing him in the viewfinder) but he never moved in successive photos. If you are referring to the dust mapping function on the later cameras, I wouldn't trust it.

1. In camera cleaning shaker.
2. Rocket Blower
3. O-ICK1
4. Wet Clean

Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
pentax help
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
HDR towards sun artifacts smilinpig Troubleshooting and Beginner Help 5 04-12-2011 04:47 AM
RAW Compression artifacts? Johnny5 Pentax DSLR Discussion 5 09-27-2010 01:49 AM
JPEG Artifacts dadipentak Digital Processing, Software, and Printing 15 02-25-2010 12:28 PM
Weird Lines and Image Artifacts with DNG files trd300gt Photographic Technique 5 01-31-2010 06:49 PM
K20D sensor artifacts? Adam_T4 Pentax DSLR Discussion 12 12-19-2009 04:41 PM



All times are GMT -7. The time now is 03:15 PM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top