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08-14-2010, 07:34 PM   #1
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How to clean my SMC PENTAX DA 18-55 lens from the inside?

I am not 100% sure, but I think I am having a lot of dust (clearly visible on the pictures) inside my lens. I have cleaned my camara inside (also the sensor) many times and lens (outside) also many times, but it seems like the problem is getting more and more worst. The only option could be that there is a huge amount of dust inside the lens itself.

How can I clean this?

I already brought my camera to a photo specialist (thought it was dust inside my camera) and they told me that they won't touch the camera for cleaning. If something goes wrong, they were responsible. :-(

I'm using a really good photo software program to 'erase' the so called dust spots on my pics but that is not the solution, especially not when you have over 600 pics to do.

Thanks... (See the attache file of a pic that I just took).

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08-14-2010, 08:36 PM   #2
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That's not dust in the lens, It's dust on the sensor. You've been changing lenses in very dusty or windy conditions. In fact I've never seen a sensor this dirty. Normally I'd suggest cleaning it yourself with a rocket blower or some other method but in this case I think it should be done at a dealership or repair center that cleans sensors.

B&H does sell good kits for this and worth asking what's available. You should search the forums on advice for cleaning and how to change lenses without this happening as much.
08-15-2010, 07:35 AM   #3
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Hello,

I have some lenses that are 30+ years old and look like they should be paper weights but in truth are very sharp. The point is dust particles on or inside the lens will affect an image dramatically especially as in your image posted here. The particles in your image are too in focus to be in or on the lens. My guess is they are on the filter that sits on top of a DSLR's sensor. To me, they look like water spots. I would strongly suggest you have your camera services professionally.

Pentax would be the best place to start.
Warranty and Repairs - Official PENTAX Imaging Web Site

Unfortunately we do not do camera repairs.

Here are 3 reputable service providers we know of;

Phototech
110 East 13th Street
New York, NY 10003
212 673-8400

www.phototech.com


Chrysler Camera Repair (across from B&H Photo)
367 West 34TH ST. 2nd Floor
New York, NY 10001
Phone 212-682-3547

Mack Camera and Video Service
200 Morris Avenue
Springfield, NJ 07081
1 800 252-MACK

http://www.mackcam.com/repairs.html


C h u c k C a p r i o l a
Live Chat and E-Mail Sales Manager B&H Photo-Video

Thank you, we appreciate your business.
*** Peace on Earth ***
08-15-2010, 09:04 AM   #4
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Thank you guys. I am glad to hear this is NOT the lens. (I was already looking to buy myself a brand new lens).

I brought my camera already to a professional repair store, but they didn't want to work on it (I could claim them if it wasn't done right..), so they sold me a professional cleaning kit. I cleaned my sensor many, many times... but always without any visible result and it ususlly becomes even worst then before I cleaned it.

I have never taken my lens off while outside, but one of the connectors (to connect my camera to my computer to transfer pics) has been damaged, which is now an open gap. It's small, but it's open... That's why dust can come in very easily, I guess..

Thanks for the responses. I will see what I can do and also repair the little opening.

08-15-2010, 09:34 AM   #5
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Did you buy the camera new? If so can you return it to the place of purchase for repairs? If not, do as Chuck suggests and send it to Pentax USA. They can repair the broken part and do the cleaning.

Another place to email for suggestions is Eric of Home

These guys are very good!
08-15-2010, 09:39 AM   #6
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Hello,

One common problem is generally speaking, the mirror mechanism when assembled at the factory is over oiled. In time, excess oil can be splattered inside the camera body.

I've never heard of a "professional repair store" refusing to work on a camera as sensor cleaning is now their bread and butter. I would contact the businesses I suggested for assistance.

Chuck
08-15-2010, 05:05 PM   #7
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Yes, I bought the camera and lens brand new, but that's about (I think) 3 or 4 years ago.

I cleaned it again today, looked way better but there are indeed lots of water stains visible. I will do another attempt to get my camera repaired and cleaned. Hopefully they will do it this time.

Thanks! :-)
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