Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-17-2011, 03:00 PM   #1
Pentaxian
fiveseven's Avatar

Join Date: Jul 2010
Location: NV/CA
Posts: 334
Dirty sensor or lens?

Whenever I take photos around F8 or higher I see some specs in the photos. Just wondering if it's the glass or the sensor.

Also would using vacuum cleaner hose close to (not all the way inside of course) to remove dust can possibly damage the sensor/mirror in anyway? Has anyone ever tried it?

Examples.

Taken at f16 with macro extension tubes and x4 magnifier attachment lens.






01-17-2011, 03:29 PM   #2
Site Supporter
Site Supporter
enoeske's Avatar

Join Date: Jul 2009
Location: Surprise, Az
Photos: Gallery
Posts: 2,133
if you can see it, its on the sensor
01-17-2011, 04:17 PM   #3
Pentaxian
fiveseven's Avatar

Join Date: Jul 2010
Location: NV/CA
Posts: 334
Original Poster
Thanks.

My vacuum cleaner method worked perfectly....
Mirror up and vacuum cleaner hose inside the camera (not all the way)

Did several tests on f16 and f32 and they are gone.
01-17-2011, 05:14 PM   #4
Pentaxian
Wheatfield's Avatar

Join Date: Apr 2008
Location: The wheatfields of Canada
Posts: 12,410
I wouldn't clean a sensor that way, but that's just my uneducated opinion.

01-17-2011, 09:42 PM   #5
Loyal Site Supporter
Loyal Site Supporter
BigDave's Avatar

Join Date: Sep 2010
Location: Hudson Valley, NY
Photos: Gallery | Albums
Posts: 2,511
IF you see it even when you change lenses it ain't on the lens!
01-18-2011, 12:34 AM   #6
Veteran Member
sewebster's Avatar

Join Date: Jun 2008
Location: Vancouver, BC
Photos: Gallery
Posts: 535
My concern with the vacuum cleaner method would be static.
01-18-2011, 12:52 AM   #7
Pentaxian
fiveseven's Avatar

Join Date: Jul 2010
Location: NV/CA
Posts: 334
Original Poster
What static? The hose is plastic and it's not touching anything.
It covers 97% of the lens mount housing and leaves about 4 - 5mm diameter so it does not create total vacuum inside the camera.
But hey, it worked out pretty good + it beat's more intrusive/time consuming cleaning method.
01-18-2011, 01:57 AM   #8
Veteran Member
kalison's Avatar

Join Date: May 2010
Location: Utah
Posts: 376
Thats the most interesting dust I've seen. looks more like when you got dust and such on your film.

01-18-2011, 01:59 AM   #9
Veteran Member
Tommot1965's Avatar

Join Date: Sep 2010
Location: Perth Western Australia
Photos: Gallery | Albums
Posts: 1,026
QuoteOriginally posted by fiveseven Quote
Thanks.

My vacuum cleaner method worked perfectly....
Mirror up and vacuum cleaner hose inside the camera (not all the way)

Did several tests on f16 and f32 and they are gone.
I did that with my K7..at first I thought I was mad...glad to see others are as mad ...it worked for me !!
01-18-2011, 06:41 AM   #10
Pentaxian
Wheatfield's Avatar

Join Date: Apr 2008
Location: The wheatfields of Canada
Posts: 12,410
QuoteOriginally posted by sewebster Quote
My concern with the vacuum cleaner method would be static.
My concern would be knocking stuff out of alignment. That kind of activity is going to put a lot of stress on moving parts.
OTOH, people have kittens when I spray canned gas at my sensor...
01-18-2011, 07:20 AM   #11
Pentaxian
eddie1960's Avatar

Join Date: Aug 2010
Location: Toronto
Photos: Gallery | Albums
Posts: 12,875
QuoteOriginally posted by Wheatfield Quote
My concern would be knocking stuff out of alignment. That kind of activity is going to put a lot of stress on moving parts.
OTOH, people have kittens when I spray canned gas at my sensor...
I'd rather spray canned gas than go this rout, i'm not a fan of putting anything inside the camera if i can avoid it, and big metal objects would be the bottom of my list.
Canned air just need to be used properly no different than using it on other electronics
01-18-2011, 01:28 PM   #12
Veteran Member
Tommot1965's Avatar

Join Date: Sep 2010
Location: Perth Western Australia
Photos: Gallery | Albums
Posts: 1,026
QuoteOriginally posted by Wheatfield Quote
My concern would be knocking stuff out of alignment. That kind of activity is going to put a lot of stress on moving parts.
OTOH, people have kittens when I spray canned gas at my sensor...

LMAO...when I was doing, I thought " I shouldn't be doing this "...and I wouldn't want to do it again ...but no harm was done...that time...
01-18-2011, 01:37 PM   #13
Veteran Member
Voytech's Avatar

Join Date: Nov 2009
Location: NY/NJ
Photos: Gallery | Albums
Posts: 952
Yea.. Doesn't sound like the best idea, then again, in my early days I literally picked off a hair off the sensor with a folded nose tissue lol. No harm done either.
01-18-2011, 01:46 PM   #14
Pentaxian
eddie1960's Avatar

Join Date: Aug 2010
Location: Toronto
Photos: Gallery | Albums
Posts: 12,875
QuoteOriginally posted by Voytech Quote
Yea.. Doesn't sound like the best idea, then again, in my early days I literally picked off a hair off the sensor with a folded nose tissue lol. No harm done either.
i've used a q tip more than once. it works but i'm very gentle with it
not sure i'd use a nose tissue though (my fingers are too fat to get in the tight space for one)
01-18-2011, 04:22 PM   #15
Veteran Member
sewebster's Avatar

Join Date: Jun 2008
Location: Vancouver, BC
Photos: Gallery
Posts: 535
QuoteOriginally posted by fiveseven Quote
What static? The hose is plastic and it's not touching anything.
It covers 97% of the lens mount housing and leaves about 4 - 5mm diameter so it does not create total vacuum inside the camera.
But hey, it worked out pretty good + it beat's more intrusive/time consuming cleaning method.
Dust moving in the air hits the plastic and charges up the tube (remember rubbing various substances together in school, they weren't metal...). Anyway, my understanding is that using vacuums around electronics or flammable materials is a no-no.
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!
camera, photography, photos, sensor
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Dirty Sensor? JeffJS Troubleshooting and Beginner Help 13 03-31-2014 01:04 PM
Dirty Sensor? jaieger Pentax DSLR Discussion 18 07-23-2010 01:41 PM
Dirty Sensor Or Dirty Lens? Orli Troubleshooting and Beginner Help 8 10-26-2009 03:35 AM
dirty sensor ? StevenVH Pentax DSLR Discussion 27 04-16-2009 02:48 PM
Is my sensor dirty? deuces Pentax DSLR Discussion 16 08-06-2008 01:31 PM



All times are GMT -7. The time now is 05:02 AM. | See also: NikonForums.com, CanonForums.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