OMG Dust Bunnies!!! - DPChallenge Forums

Canon EF 70-200mm f/4.0L USM

12/27/2007 11:59:32 AM · #1

Okay, I admit it ... I haven't cleaned the Canon 20D for awhile. BUT SHEESH, I had *no* idea it was this bad!!!

Before:

After:

Shot at f/29 to really make those dust bunnies visible. (ISO 400 contributed to the overall noise)

The Mark III wasn't nearly so bad. However, the lens was obviously dirty!

Before:

After:

The 5D didn't have anything worth showing, so I'll spare you that one.

So anyway ... while you're thinking about it ... GO CLEAN YOUR SENSOR NOW!!!

And while you're at it, now is a good time to check the time/date on your clock.

karmat

Apple iPhone 7

12/27/2007 12:00:42 PM · #2

Originally posted by dwterry:

And while you're at it, now is a good time to check the time/date on your clock.

That is always timely advice. :)

MelonMusketeer

Nikon D7000

Nikon MF 50mm f/1.4

12/27/2007 12:05:20 PM · #3

Awesome portfolio additions! : )

hanneke

Canon EOS-5D Mark II

12/27/2007 12:07:47 PM · #4

that looks stunning! ;)

Originally posted by dwterry:

So anyway ... while you're thinking about it ... GO CLEAN YOUR SENSOR NOW!!!

nah, not yet ;)

Originally posted by dwterry:

And while you're at it, now is a good time to check the time/date on your clock.

good point. yesterday I did the stupid gifts challenge, but after cleaning up the studio & face, I thought OH NO! Date and time!

Turns out to be perfect. Phew!

12/27/2007 12:08:03 PM · #5

Originally posted by MelonMusketeer:

Awesome portfolio additions! : )

A little like throwing paint on the wall and calling it art?!? lol

Strikeslip

Canon EF 100-400mm f/4.5-5.6L IS

12/27/2007 12:11:07 PM · #6

Originally posted by dwterry:

Before:

You're supposed to use a blower & swab, not open the camera up and hang it out the car window at 65mph during a desert dust storm!
;-P

Creature

Nikon D70s

Nikon AF-S DX Zoom-Nikkor 18-70mm f/3.5-4.5G IF-ED

12/27/2007 03:48:39 PM · #7

^ lol ... I have had my camera for 2 years, over 1000 shots, change lenses at least once practically every time I take it out, and I have no distinguishable sensor dust. I think I really take the rules of thumb to heart when changing lenses (point camera down, don't do it in windy/dusty conditions, make the lens change in minimal time, etc.). Then again, I'm not in this for business so I can probably afford to take a little longer and be a little more careful about when and where I change my lenses.

Nikon AF-S DX Zoom-Nikkor 18-55mm f/3.5-5.6 ED

12/27/2007 03:56:02 PM · #8

How are you guys cleaning your lenses?

FocusPoint

XIAOMI Redmi Note 8 Pro

12/27/2007 04:12:06 PM · #9

Originally posted by Dirt_Diver:

How are you guys cleaning your lenses?

Dry clean ;)

BeeCee

Nikon D40

12/27/2007 05:09:49 PM · #10

David, I hope your conscience is bothering you for killing all those innocent bunnies. They were only trying to improve your scores by giving you an instant grunge look, after all!

Meanie...

Tamron SP AF 28-75mm f/2.8 XR Di for Canon

12/27/2007 05:39:14 PM · #11

Originally posted by Creature:

I have had my camera for 2 years, over 1000 shots, change lenses at least once practically every time I take it out, and I have no distinguishable sensor dust.

Try this little exercise:

1) Set your camera to aperture priority
2) Stop the lens down as far as it will go (f/22 or lower).
3) Point the camera at a wall or up at the sky.
4) Set the lens to manual focus and DE-focus it (purposely blur)
5) Take the shot (jpeg mode to save time). It doesn't matter if you're indoors and it's a 5 second shot, and you don't have to hold still, in fact, move it around so that nothing comes into focus.
6) Bring the image into Photoshop
7) Hold onto a chair or something so you don't fall over
8) press CTRL-L (levels) and then click on Auto.

Step #7 was for your protection. I'm betting you "ain't been as careful as you thought" and that step #8 will turn out to be quite revealing!

The reason for clicking on auto levels is two fold: 1) it'll white balance the image so that you see the spots as black on white, and 2) it'll up the contrast so that the specs are more obvious.

Chances are ... you don't normally shoot at f/22 or lower. And chances are, you don't go to such a high contrast ratio. So chances are, you've been inundated with dust bunnies over a two year period and haven't realized it yet. ;-)

SamDoe1

Canon EOS-350D Rebel XT

12/27/2007 11:52:29 PM · #12

Originally posted by Dirt_Diver:

How are you guys cleaning your lenses?

Steel wool works great!

On the serious side, a lens pen works great and they're pretty cheap.

JBHale

Canon EOS-20D

Canon EF 24-85mm f/3.5-4.5 USM

12/28/2007 02:53:56 AM · #13

I just cleaned my 20D fine with only a blower (despite all the internet banter I found against it). It's not perfect, but it looks pretty good!

Before:

After:

Puckzzz

Pentax K10D

Pentax FA 28-80mm 3.5-5.6 AF - Silver

12/28/2007 04:13:44 AM · #14

thnx for the reminder, now I'm searching my #ss off to find my manual on how to use the self cleaning sensor feature...

Tez

Canon EOS-5D Mark II

Canon EF 85mm f/1.8 USM

12/28/2007 04:25:25 AM · #15

you can use those pics as overlays now though :)

03/01/2008 05:03:23 PM · #16

Originally posted by SamDoe1:

Originally posted by Dirt_Diver:
How are you guys cleaning your lenses?

Steel wool works great!

On the serious side, a lens pen works great and they're pretty cheap.

I have a lens pen but I still have horrible dust. I called the LPS and they said that it might be on the CCD and would be $65 to clean. I have removed the lens and blown/wiped/dusted off everything I can and still not working. I can even see it in the view finder. SOMEONE HELP ME PLEASE.

Message edited by author 2008-03-01 17:04:02.

incubus

03/01/2008 05:11:45 PM · #17

this should be the next challenge. with basic editing lol

trevytrev

Canon EF 16-35mm f/2.8L USM

03/01/2008 05:14:02 PM · #18

That borders on abuse man, I should take your camera away from you:)

edit spelling

Message edited by author 2008-03-01 17:27:48.

Beetle

Canon EOS-5D Mark II

Canon EF 24-105mm f/4.0L IS

03/01/2008 05:18:36 PM · #19

Originally posted by Dirt_Diver:

SOMEONE HELP ME PLEASE.

Here is one place for starters, but there are oodles of others. "Copper Hill" is one you could google.

03/01/2008 06:59:23 PM · #20

Originally posted by Dirt_Diver:

I can even see it in the view finder.

Ummm... if you can see it in the view finder, then the dust is probably up inside the view finder. No harm done there. It's distracting, but it won't affect your picture. Try blowing it out (remember, it's up at the top) and if you can't do it yourself, then just ignore until you it gets worse and you're willing to part with some cash to have someone else do the cleaning.

03/01/2008 07:51:41 PM · #21

Originally posted by dwterry:

Originally posted by Dirt_Diver:
I can even see it in the view finder.

Ummm... if you can see it in the view finder, then the dust is probably up inside the view finder. No harm done there. It's distracting, but it won't affect your picture. Try blowing it out (remember, it's up at the top) and if you can't do it yourself, then just ignore until you it gets worse and you're willing to part with some cash to have someone else do the cleaning.

I can see it in the VF but it's still coming out on the pictures. I'll post one here shortly with they instructions you gave.

trevytrev

Canon EF 16-35mm f/2.8L USM

03/01/2008 07:54:42 PM · #22

Originally posted by Dirt_Diver:

Originally posted by dwterry:

Originally posted by Dirt_Diver:
I can even see it in the view finder.

Ummm... if you can see it in the view finder, then the dust is probably up inside the view finder. No harm done there. It's distracting, but it won't affect your picture. Try blowing it out (remember, it's up at the top) and if you can't do it yourself, then just ignore until you it gets worse and you're willing to part with some cash to have someone else do the cleaning.

I can see it in the VF but it's still coming out on the pictures. I'll post one here shortly with they instructions you gave.

If you can see it in the view finder and it's in the same spot on the picture then it's on your lens nto your sensor. You will not see sensor dust through the view finder, only dust on the mirror and on the lens.

03/01/2008 08:03:36 PM · #23

Okay here is 2 different lenses and the bunnies are in the same spot.

[thumb]653370[/thumb] [thumb]653371[/thumb]

trevytrev

Canon EF 16-35mm f/2.8L USM

03/01/2008 08:08:05 PM · #24

K, defintely sensor dust. I'm betting that you are seeing different dust which is on the reflex mirror. You cleaned your sensor and still have this much dust? Is there a cleaning mode on that camera that allows you to lock open the shutter?