Spots in Photos

Archived from groups: rec.photo.digital (More info?)

A lot of my photos lately with the 300D have had spots. I'm not sure if
it's the sensor--I did use a blower device to clean it briefly--but it may
have been the Skylight filter which did have a few specks on it.Here is one
photo which shows what I'm talking about (this was BEFORE I cleaned the
sensor & the Skylight filter):

http://www.dbases.net/tmp/394_9441_jfr_rz.jpg
(I have it at pbase, but pbase is very unacceptably not working. I may
delete my gallery there for that reason, but anyway.)

How do I check & see if there are still any spots? Are there any other
reasons besides sensor-cleaning or specks on the UV filter which could cause
this? And--again--what type of test shots would allow one to check for such
things?

--
LRH
Nikon CP5700, Canon EOS300D (Digital Rebel), Sunpak 433AF (for Nikon)
http://www.photo.net/photodb/user?user_id=750758
http://www.pbase.com/larrytucaz

Archived from groups: rec.photo.digital (More info?)

"Larry R Harrison Jr" <noone@noone.net> wrote in message
news:AAKqd.368286$a85.158528@fed1read04...
> A lot of my photos lately with the 300D have had spots. I'm not sure if
> it's the sensor--I did use a blower device to clean it briefly--but it may
> have been the Skylight filter which did have a few specks on it.Here is
> one
> photo which shows what I'm talking about (this was BEFORE I cleaned the
> sensor & the Skylight filter):
>
> http://www.dbases.net/tmp/394_9441_jfr_rz.jpg
> (I have it at pbase, but pbase is very unacceptably not working. I may
> delete my gallery there for that reason, but anyway.)
>
> How do I check & see if there are still any spots? Are there any other
> reasons besides sensor-cleaning or specks on the UV filter which could
> cause
> this? And--again--what type of test shots would allow one to check for
> such
> things?
>
> --
> LRH
> Nikon CP5700, Canon EOS300D (Digital Rebel), Sunpak 433AF (for Nikon)
> http://www.photo.net/photodb/user?user_id=750758
> http://www.pbase.com/larrytucaz
>
>

I used to get these with my Fuji 1400 Zoom it happened after I had taken
some shots near the sea, I had a close look and saw that the lens had specks
after water drops had dried on there, gave it a clean which solved the
problem.

Stu

PS I have not long had a 300D now and am looking for a 70-200 or 300
(approx) lens, can you recommend one ? Don't want to spend too much :-/

Archived from groups: rec.photo.digital (More info?)

Thanks for the tips. What else could cause those spots you saw? I use to
have a 2MP P&S Nikon CP775 and it would randomly give me these spots, and of
course sensor dust wasn't an issue and the lens was clean--but I would
randomly STILL get such spots. What could cause that?

"Larry R Harrison Jr" <noone@noone.net> wrote in message
news:AAKqd.368286$a85.158528@fed1read04...
> A lot of my photos lately with the 300D have had spots. I'm not sure if
> it's the sensor--I did use a blower device to clean it briefly--but it may
> have been the Skylight filter which did have a few specks on it.Here is
> one
> photo which shows what I'm talking about (this was BEFORE I cleaned the
> sensor & the Skylight filter):
>
> http://www.dbases.net/tmp/394_9441_jfr_rz.jpg
> (I have it at pbase, but pbase is very unacceptably not working. I may
> delete my gallery there for that reason, but anyway.)
>
> How do I check & see if there are still any spots? Are there any other
> reasons besides sensor-cleaning or specks on the UV filter which could
> cause
> this? And--again--what type of test shots would allow one to check for
> such
> things?
>
> --
> LRH
> Nikon CP5700, Canon EOS300D (Digital Rebel), Sunpak 433AF (for Nikon)
> http://www.photo.net/photodb/user?user_id=750758
> http://www.pbase.com/larrytucaz
>
>

Archived from groups: rec.photo.digital (More info?)

The light spots are dust on or in the lens. Check the back of the lens as
well as the front, if they are both clean hold the lens up to a light and
look at the internal elements if it is dusty there it is time for a CLA.

Jim Kramer

"Larry R Harrison Jr" <noone@noone.net> wrote in message
news:AAKqd.368286$a85.158528@fed1read04...
> A lot of my photos lately with the 300D have had spots. I'm not sure if
> it's the sensor--I did use a blower device to clean it briefly--but it may
> have been the Skylight filter which did have a few specks on it.Here is
> one
> photo which shows what I'm talking about (this was BEFORE I cleaned the
> sensor & the Skylight filter):
>
> http://www.dbases.net/tmp/394_9441_jfr_rz.jpg
> (I have it at pbase, but pbase is very unacceptably not working. I may
> delete my gallery there for that reason, but anyway.)
>
> How do I check & see if there are still any spots? Are there any other
> reasons besides sensor-cleaning or specks on the UV filter which could
> cause
> this? And--again--what type of test shots would allow one to check for
> such
> things?
>
> --
> LRH
> Nikon CP5700, Canon EOS300D (Digital Rebel), Sunpak 433AF (for Nikon)
> http://www.photo.net/photodb/user?user_id=750758
> http://www.pbase.com/larrytucaz
>
>

Archived from groups: rec.photo.digital (More info?)

Larry R Harrison Jr wrote:

> Here is the latest, a photo taken AFTER three times of trying to clean the
> sensor:
>
> http://www.dbases.net/tmp/394_9472_rz.jpg
>
> Notice on the bottom-middle the small speck.
>
> I did check the lens thoroughly as well, I can find NOTHING.
>
> What in the world do I have to do to get rid of this?
>
> LRH

There are two more as well, one near the top centre, and another left of
centre. Is this a full-frame shot, or have you cropped it to show the spots?
If it is a crop, then how visible are the spots in a full frame?

Colin

Archived from groups: rec.photo.digital (More info?)

Larry R Harrison Jr wrote:
> Here is the latest, a photo taken AFTER three times of trying to
> clean the sensor:
>
> http://www.dbases.net/tmp/394_9472_rz.jpg
>
> Notice on the bottom-middle the small speck.
>
> I did check the lens thoroughly as well, I can find NOTHING.
>
> What in the world do I have to do to get rid of this?

They are most definitely dust spots on the sensor. They look exactly like
what I got with my dRebel. A good cleaning of the sensor got rid of them.
Simply blowing them off won't work if they're stuck to the surface.

Archived from groups: rec.photo.digital (More info?)

Larry R Harrison Jr wrote:
> If "just blowing them off" won't do it, what will?

Take a look here:
http://robgalbraith.com/bins/conte [...] -6460-7296

Archived from groups: rec.photo.digital (More info?)

Larry R Harrison Jr wrote:
>
> Here is the latest, a photo taken AFTER three times of trying to clean the
> sensor:
>
> http://www.dbases.net/tmp/394_9472_rz.jpg
>
> Notice on the bottom-middle the small speck.
>
> I did check the lens thoroughly as well, I can find NOTHING.

I took the image, increased the contrast, and made it BW.
your sensor needs to be cleaned.

http://www.vircen.com/rpd/ shows what I saw.
you can clean it, carefully.

http://photosol.com/ for sensor swabs to fit your camera.
from photosol-

"How to clean an SLR Digital Chip. Sensor Swab and Eclipse are approved
by Kodak and Fuji but NOT approved by Canon or Nikon. While several
digital-imaging message boards have threads discussing the need for
cleaning these chips, and the success with using these products, you do
so at your own risk !!! If you have ANY questions about the procedure,
please call us BEFORE you begin - we are here to help. "

get swabs and eclipse cleaner. Calumet photo will have them.

when you change lenses,
always power off the camera,
hold it upside down when the lens is off,
clean the lens mount regularly with canned air to reduce dust.

I clean the S2 Sensor with canned air, carefully.
no shaking the can so no liquid blows out.
camera is again upside sown so dust falls out, not in.


> What in the world do I have to do to get rid of this?
>
> LRH
>
> "Larry R Harrison Jr" <noone@noone.net> wrote in message
> news:AAKqd.368286$a85.158528@fed1read04...
> > A lot of my photos lately with the 300D have had spots. I'm not sure if
> > it's the sensor--I did use a blower device to clean it briefly--but it may
> > have been the Skylight filter which did have a few specks on it.Here is
> > one
> > photo which shows what I'm talking about (this was BEFORE I cleaned the
> > sensor & the Skylight filter):
> >
> > http://www.dbases.net/tmp/394_9441_jfr_rz.jpg
> > (I have it at pbase, but pbase is very unacceptably not working. I may
> > delete my gallery there for that reason, but anyway.)
> >
> > How do I check & see if there are still any spots? Are there any other
> > reasons besides sensor-cleaning or specks on the UV filter which could
> > cause
> > this? And--again--what type of test shots would allow one to check for
> > such
> > things?
> >
> > --
> > LRH
> > Nikon CP5700, Canon EOS300D (Digital Rebel), Sunpak 433AF (for Nikon)
> > http://www.photo.net/photodb/user?user_id=750758
> > http://www.pbase.com/larrytucaz
> >
> >

Archived from groups: rec.photo.digital (More info?)

>If "just blowing them off" won't do it, what will?

http://www.pbase.com/copperhill/ccd_cleaning
http://www.cleaningdigitalcameras.com/
http://www.birdsasart.com/bn134.htm
http://www.luminous-landscape.com/ [...] dust.shtml
http://www.photo.net/equipment/digital/sensorcleaning/

Archived from groups: rec.photo.digital (More info?)

Crownfield wrote:
> PhotoMan wrote:
>>
>> Crownfield wrote:
>>> hold it upside down when the lens is off,
>>> clean the lens mount regularly with canned air to reduce dust.
>>>
>>> I clean the S2 Sensor with canned air, carefully.
>>> no shaking the can so no liquid blows out.
>>> camera is again upside sown so dust falls out, not in.
>>
>> In my not so humble opinion, canned air anywhere NEAR a sensor is
>> playing with fire, regardless of how careful you are. Just a tiny
>> sputter-speck of liquid hitting the sensor will damage it. Residue
>> of liquid in the discharge tube of the can is enough to cause
>> trouble. I've read of lenses cracking from the frozen droplets;
>> imagine how fragile a sensor is compared to a lens.
>
> i have no problems, but i am careful.

Nope - you've been lucky.

> I found the squeeze blowers to be worse.
> I used an old one, and it blew rubber dust all over the sensor.

Of course a bad tool does a bad job. That doesn't mean ALL blowers shouldn't
be used.
Not as bad as a cracked sensor though is it?

> it took about 5 swabs to clean it all off.

But the sensor still works.

Archived from groups: rec.photo.digital (More info?)

PhotoMan wrote:
>
> Crownfield wrote:
> > PhotoMan wrote:
> >>
> >> Crownfield wrote:
> >>> hold it upside down when the lens is off,
> >>> clean the lens mount regularly with canned air to reduce dust.
> >>>
> >>> I clean the S2 Sensor with canned air, carefully.
> >>> no shaking the can so no liquid blows out.
> >>> camera is again upside sown so dust falls out, not in.
> >>
> >> In my not so humble opinion, canned air anywhere NEAR a sensor is
> >> playing with fire, regardless of how careful you are. Just a tiny
> >> sputter-speck of liquid hitting the sensor will damage it. Residue
> >> of liquid in the discharge tube of the can is enough to cause
> >> trouble. I've read of lenses cracking from the frozen droplets;
> >> imagine how fragile a sensor is compared to a lens.
> >
> > i have no problems, but i am careful.
>
> Nope - you've been lucky.

no, i have done it correctly.
others may not be able to do it carefully enough, but i can.

>
> > I found the squeeze blowers to be worse.
> > I used an old one, and it blew rubber dust all over the sensor.
>
> Of course a bad tool does a bad job. That doesn't mean ALL blowers shouldn't
> be used.
> Not as bad as a cracked sensor though is it?

i would not know.
i have never cracked a sensor.

>
> > it took about 5 swabs to clean it all off.
>
> But the sensor still works.

even with the canned air, used carefully,
it still works.

Archived from groups: rec.photo.digital (More info?)

Crownfield wrote:


> I found the squeeze blowers to be worse.
> I used an old one, and it blew rubber dust all over the sensor.
> it took about 5 swabs to clean it all off.

I used a new one and blew rubber dust all over the sensor.
There was some left from the manufacture.

Sensor swabs and Photosol have been my preferred method
of cleaning.

Archived from groups: rec.photo.digital (More info?)

Ryan Robbins wrote:
>
> "Crownfield" <Crownfield@cox.net> wrote in message
> news:41AC1821.350E@cox.net...
> > no, i have done it correctly.
> > others may not be able to do it carefully enough, but i can.
>
> You're playing with fire. Nobody recommends canned air for this.

We obviously have different fears of fire.

I hand feed and pet 600 lb siberian tigers,
and work next to and around lions, tigers,
leopards, jaguars, and cougars.
I have all my fingers.

I also have a clean sensor with no problems.

Archived from groups: rec.photo.digital (More info?)

Big Bill wrote:
>
> On Tue, 30 Nov 2004 20:44:48 -0800, Crownfield <Crownfield@cox.net>
> wrote:
>
> >Ryan Robbins wrote:
> >>
> >> "Crownfield" <Crownfield@cox.net> wrote in message
> >> news:41AC1821.350E@cox.net...
> >> > no, i have done it correctly.
> >> > others may not be able to do it carefully enough, but i can.
> >>
> >> You're playing with fire. Nobody recommends canned air for this.
> >
> >We obviously have different fears of fire.
> >
> >I hand feed and pet 600 lb siberian tigers,
> >and work next to and around lions, tigers,
> >leopards, jaguars, and cougars.
> >I have all my fingers.
> >
> >I also have a clean sensor with no problems.
>
> A man jumped off the roof of a 12 story building.
> On the 6th floor, Mable Tutwheiler heard him yell, "So far, so good!"
> as he went by.
>
> You may never have a problem (there may be a pool down there), but
> it's universally recommended that this method not be used, for reasons
> already stated.

if I have a problem, I will let you know.

> --
> Bill Funk
> Change "g" to "a"

Archived from groups: rec.photo.digital (More info?)

Ken Tough wrote:
>
> Crownfield <Crownfield@cox.net> wrote:
> >> >We obviously have different fears of fire.
> >> >I hand feed and pet 600 lb siberian tigers,
> >> >and work next to and around lions, tigers,
> >> >leopards, jaguars, and cougars.
>
> >> >I have all my fingers.
> >> >I also have a clean sensor with no problems.
>
> >> A man jumped off the roof of a 12 story building.
> >> On the 6th floor, Mable Tutwheiler heard him yell, "So far, so good!"
> >> as he went by.
>
> >> You may never have a problem (there may be a pool down there), but
> >> it's universally recommended that this method not be used, for reasons
> >> already stated.
>
> >if I have a problem, I will let you know.
>
> You may find it difficult to type at that point.

and thus you win "The Laugh of the Day Award" !!

>
> --
> Ken Tough

Archived from groups: rec.photo.digital (More info?)

Big Bill wrote:
>
> On Wed, 01 Dec 2004 11:10:25 -0800, Crownfield <Crownfield@cox.net>
> wrote:
>
> >Big Bill wrote:
> >>
> >> On Tue, 30 Nov 2004 20:44:48 -0800, Crownfield <Crownfield@cox.net>
> >> wrote:
> >>
> >> >Ryan Robbins wrote:
> >> >>
> >> >> "Crownfield" <Crownfield@cox.net> wrote in message
> >> >> news:41AC1821.350E@cox.net...
> >> >> > no, i have done it correctly.
> >> >> > others may not be able to do it carefully enough, but i can.
> >> >>
> >> >> You're playing with fire. Nobody recommends canned air for this.
> >> >
> >> >We obviously have different fears of fire.
> >> >
> >> >I hand feed and pet 600 lb siberian tigers,
> >> >and work next to and around lions, tigers,
> >> >leopards, jaguars, and cougars.
> >> >I have all my fingers.
> >> >
> >> >I also have a clean sensor with no problems.
> >>
> >> A man jumped off the roof of a 12 story building.
> >> On the 6th floor, Mable Tutwheiler heard him yell, "So far, so good!"
> >> as he went by.
> >>
> >> You may never have a problem (there may be a pool down there), but
> >> it's universally recommended that this method not be used, for reasons
> >> already stated.
> >
> >if I have a problem, I will let you know.
>
> I didn't ask for notification.
> I also didn't tell you that you would have a problem.
> I did point out that no one suggests such a practice, for good
> reasons.

the average iq is 2 digits...

> --
> Bill Funk
> Change "g" to "a"

Archived from groups: rec.photo.digital (More info?)

PhotoMan wrote:
> Crownfield wrote:
>> the average iq is 2 digits...
>
> And forewarned is forearmed.