Cleaning the Sensor of K10D

I have managed to bag a Vivitar 1:1 100mm f2/8 macro lens off Ebay for a stupidly low price but getting up close shows all the specks on my sensor.

Shot was hand held with no cropping, I presume all the little bits are dust.

http://farm3.static.flickr.com/2030/2531037234_cd7aafc0c6_o.jpg

What is the best way to go aboutt cleaning it?

Thanks.

Try this thread:

https://www.pentaxuser.com/forum/viewtopic.php?t=7523

Btw - your picture is huge - difficult to say what those specs are. Could be dust inside the lens as well.

Try put one a different lens to check it.

Thanks, will take a look.
Wanted the picture as large as possible to show the particles in question.

Got a rocket blower yesterday and gave that a go but its not really for the sensor so not much good, but it did get out a lot of the dust I aquired when fitting a new focus screen from ebay, then promptly putting the old one back

Yes, you have dust and marks on the sensor. Some will just blow off, some may need more thorough cleaning.

I use mine on my K10D sensor all the time and it's fine. Certainly that looks like dust on the sensor, but it's not your new lens that's showing it up, just that you're using a small aperture, in this case f/16. The smaller the aperture, and the plainer the background, the more defined the dust spots.

Hold the camera face down with the sensor exposed for cleaning, then hold the rocket blower as close to the sensor as you dare (about 1cm or so for me), and give several sharp blasts of air. I've yet to have any stubborn dirt on mine in the year I've owned it. Tempting fate I know...

Dan

To clean my sensor I use:-

Rocket blower > Arctic Butterfly > Rocket blower

I've never had to wet clean my K10D sensor since I bought it in Jan 2007.

What appear as blobs with rings around them, in my experience, are not simply loose specks of dust on the sensor that can be blown off.

I have managed to get these marks off with a SensorKlear pen, and cotton bud, after breathing on the sensor. I've then needed to get stuff that has shed from the pen's felt pad, and the cotton bud, off with a blower or Arctic Butterfly.