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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 12 May 2009 (Tuesday) 02:16
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Don't be an idiot like me!

 
skygod44
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May 12, 2009 02:16 |  #1

I know I deserve to be laughed off the forum, but to save you all from making the same mistake, here's what I've been doing for almost three hours today!

I noticed my sensor had some serious crud on it, including two tiny curly hairs (no, not that type!) - from clothing, I'm guessing. I could see 30+ specks including about 10 at f/4.5 using my 100-400L!

So it was time to get the ol' Eclipse out and have a dig inside my beloved EOS 30D...

Battery was fully charged, and I had two peck-pad covered sensor-swabs. I took a test shot of the sky, out of focus at f/32 and even on the camera's display, it was like looking down on a load of policemen wandering around inside an ice-cube, so I trickled two drops of Eclipse onto the swab and....first swipe seemed ok - no residue. Looked through the viewfinder and blow me down, the crud was still there, and a particularly large blob seemed to have shifted from top-right to bottom-left!

Yuck.

Two more swabs later, and again, through the viewfinder - BLOBS!!!!!!

Ah. No more sensor-swabs! So, I jumped in my car and drove about 14km (round-trip) to the photo shop to get some more wipes.

Back to scrubbing and THREE MORE SWIPES LATER.......CRUD ALERT!!!!!

Then, as the sweat began to build, I thought to myself....."top-right to bottom-left"...."through the viewfinder"...........​....
Oh dear.

What had I done wrong? Not bothered to check the images each time I took a post-clean test shot....just looking through the viewfinder at the same blob.

What was I really looking at? A speck of dust.....on the bottom of the pentaprism.

So, one careful "up-swipe" above the mirror (not on the sensor at all!) and the blob was gone.

Please....don't be a daft berk like me. If you do your own sensor-cleaning, LOOK AT THE PICTURES after each swipe. NOT just through the viewfinder.

And of course, check your pentaprism isn't dirty too!

Simon
:oops:


"Whatever you do, enjoy yourself...otherwise, what's the point."
6D/7D and ALL Canon/Sigma gear SOLD!!!! Now: Olympus PEN EP-5 & OM-D EM-5 Mk2 and 8 lenses!

  
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khall
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May 12, 2009 02:24 |  #2

All's well that ends well....:)


YNWA.

  
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haileylommen
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May 12, 2009 02:24 |  #3

Live and learn!
Glad you got it all worked out in the end. :)


Canon 5D Mk II | 85mm f/1.8 | 40mm f/2.8 | 70-300mm III USM | 430 EX II


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skygod44
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May 12, 2009 02:26 |  #4

khall wrote in post #7904434 (external link)
All's well that ends well....:)

haileylommen wrote in post #7904436 (external link)
Live and learn!
Glad you got it all worked out in the end. :)

Thanks for the messages.....I'm just hoping that through my stupidity, you guys can be saved the humiliation of having the cleanest sensor on the planet and yet still seeing crud - which is on the pentaprism!

I think I'll give myself a "D'oh!" for my laziness!
:o


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iamaelephant
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May 12, 2009 02:40 |  #5

Well obviously dirt on the sensor won't be showing up through the viewfinder. You'll never see sensor crud through the viewfinder, it's impossible.


-- Martin
Canon 30D | Tamron 17-50mm f/2.8 | EF 50mm f/1.8 II
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binlerne
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May 12, 2009 02:41 |  #6

Haha....it happens.


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skygod44
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May 12, 2009 02:43 |  #7

iamaelephant wrote in post #7904472 (external link)
Well obviously dirt on the sensor won't be showing up through the viewfinder. You'll never see sensor crud through the viewfinder, it's impossible.

I know....that's the whole point!

It's what 36°C by 11am does to my poor British brain. It makes me turn into a blithering idiot who forgets how to check for crud despite successful sensor cleaning 1/2 a dozen times before now!

I think it was the air-conditioning in my car, going to get more swabs that cleared my thinking enough to ponder when I attacked my (already cleaned) sensor in the afternoon.
:confused:


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6D/7D and ALL Canon/Sigma gear SOLD!!!! Now: Olympus PEN EP-5 & OM-D EM-5 Mk2 and 8 lenses!

  
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Desertraptor
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May 12, 2009 02:44 |  #8

I only look directly at the sensor through a magnifting head set.


Peter
Canon 6D|60D|40D
Lens 10-22mm f2.8|50mm f 1.8|100mm f2.8 Macro

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Harvey_G
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May 12, 2009 04:15 |  #9

You must now have a VERY clean sensor. Something to look back at and laugh about one day when enjoying a pint with your mates.


-Harv-
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Shooting with more great Canon gear than I deserve. :rolleyes: :rolleyes: :rolleyes:
I don't need a second childhood. I'm not finished yet with the first one. :lol:
https://photography-on-the.net/forum/showthre​ad.php?t=764587

  
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Stealthy ­ Ninja
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May 12, 2009 04:20 |  #10
bannedPermanent ban

Mmmm... one for the blunders thread. :lol:




  
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WillOPhotos
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May 12, 2009 04:20 as a reply to  @ Harvey_G's post |  #11

On my Old 5d i was cleaning the sensor and still saw specs kept cleaning then realised the specs were on the wall haha :oops:


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iamaelephant
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May 12, 2009 04:21 |  #12

Hahaha oh my.


-- Martin
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skygod44
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May 12, 2009 05:57 |  #13

WillOPhotos wrote in post #7904701 (external link)
On my Old 5d i was cleaning the sensor and still saw specs kept cleaning then realised the specs were on the wall haha :oops:

Thank you soooooo much for making me feel less stupid. I must say, in my defence that on the way home, the needle in my car showed that the peak humidity was 80% today which always makes me go a bit bananas - there's NO AIRCON in the school I currently work at!
:confused:


"Whatever you do, enjoy yourself...otherwise, what's the point."
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HoosierJoe
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May 12, 2009 06:02 |  #14

Did you get "the look" from the wife or whomever?



Ain't nothin but a thing.

  
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skygod44
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May 12, 2009 06:07 |  #15

HoosierJoe wrote in post #7904959 (external link)
Did you get "the look" from the wife or whomever?

Are you MAD?! As if I'd tell anyone who lives on the same continent as me!!!
;)


"Whatever you do, enjoy yourself...otherwise, what's the point."
6D/7D and ALL Canon/Sigma gear SOLD!!!! Now: Olympus PEN EP-5 & OM-D EM-5 Mk2 and 8 lenses!

  
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