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07/31/2009 08:28:22 PM · #1 |
I have discovered an undocumented feature of my Canon 17-55 2.8 IS lens that I would have never thought of. Vacuum cleaner! Yes! It seems to have collected dust from every place it has ever been and stores in on the internal optics. Any lens can get dust on the outside. This lens goes the extra mile. BUT WAIT THERES MORE! This feature gets better too! It gives you a running inventory on each and every picture.
It just goes to show the difference between my cheap $217 Sigma 70-300 APO. While shooting hundreds of high school and recreation softball games with my Sigma in the worst conditions, it has never collected any dust. I guess I shouldn̢۪t expect fancy undocumented features like vacuum cleaner and dust collection updates like my $1200 Canon.
I̢۪m thinking of hooking it into my furnace system and keep the entire house dust free! What a deal!
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07/31/2009 09:06:45 PM · #2 |
Originally posted by thatsanicepicture:
I have discovered an undocumented feature of my Canon 17-55 2.8 IS lens that I would have never thought of. Vacuum cleaner!.... |
Well, that sucks! SOrry, couldn't resist.
FWIW, if you have dust showing up on photos, it is almost certainly not in the lens. It's on your sensor. Try cleaning that, and see if you still see dust. |
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07/31/2009 09:17:45 PM · #3 |
May I suggest one of these :P |
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07/31/2009 10:23:00 PM · #4 |
Originally posted by FocusPoint:
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Make sure you get the correct size. That lens requires a 77mm filter. |
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07/31/2009 10:33:55 PM · #5 |
Originally posted by kirbic:
Originally posted by thatsanicepicture:
I have discovered an undocumented feature of my Canon 17-55 2.8 IS lens that I would have never thought of. Vacuum cleaner!.... |
Well, that sucks! SOrry, couldn't resist.
FWIW, if you have dust showing up on photos, it is almost certainly not in the lens. It's on your sensor. Try cleaning that, and see if you still see dust. |
Originally posted by FocusPoint:
May I suggest one of these :P |
LOL!!!
Well the sad truth of the matter is I did think it was sensor dust for a couple of months. But one day while looking over the days images I noticed it was gone! Glory hallelujah. But wait... I was shooting with my 50mm 1.4... Hmmm. Used the 17-55 a day or so later and there it was again. I removed the polarizer and took a good look. Down inside one there it was. Not on the front set. Down a little. I'm going to send it out (to Canon) but I want to wait until I get my pictures in for a local photo contest.
It has forced me to use the 50 and 100 a lot more. It's been a lot of fun but the 17 55 is real handy.
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07/31/2009 11:22:29 PM · #6 |
There are some people who have sworn that when Canon cleans sensors at their repair facilities, that they collect it and ship it off to the factory that builds that 17-55 lens. Many reports of brand new lens' coming packed with it inside it.
Matt |
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07/31/2009 11:42:15 PM · #7 |
Originally posted by MattO:
There are some people who have sworn that when Canon cleans sensors at their repair facilities, that they collect it and ship it off to the factory that builds that 17-55 lens. Many reports of brand new lens' coming packed with it inside it.
Matt |
At no extra charge? What a deal! Lens and dust at one low price...
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08/01/2009 12:33:50 AM · #8 |
Originally posted by ambaker:
Originally posted by MattO:
There are some people who have sworn that when Canon cleans sensors at their repair facilities, that they collect it and ship it off to the factory that builds that 17-55 lens. Many reports of brand new lens' coming packed with it inside it.
Matt |
At no extra charge? What a deal! Lens and dust at one low price... |
Its a Twofer! :D
Matt |
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08/01/2009 12:38:35 AM · #9 |
| That's odd. My 17-55 is my workhorse lens. I shoot 90% of my work with it, in studio and out. I really never had an issue with dust on or in it. I've done lens changes at the beach and in many other unsavory locations through the 3 years or so I've had it and no issues at all. Its my best friend. I love it more than white rice! |
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08/01/2009 12:45:27 AM · #10 |
| I would think that a trip to the Canon repair facility would take care of the problem. Should be covered by warranty. |
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08/01/2009 12:48:14 AM · #11 |
Originally posted by idnic:
That's odd. My 17-55 is my workhorse lens. I shoot 90% of my work with it, in studio and out. I really never had an issue with dust on or in it. I've done lens changes at the beach and in many other unsavory locations through the 3 years or so I've had it and no issues at all. Its my best friend. I love it more than white rice! |
I've never owned one Cindi but I spend way too much time on hardware forums and read way too much. Type this into google or yahoo and read the results.
canon 17 55 dust problem
The results might surprise you. I'm not sure what the deal is with that particular lens but its pretty common complaint.
Matt |
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08/01/2009 01:04:37 AM · #12 |
| Just read a few threads, Matt. I guess I got a good one. I've never used a UV filter or any other protective cover on it - I think they're dumb. But I sure do put mine through its paces on a regular basis. Weddings alone would crush a lesser-quality lens, but my seniors and beach stuff..... I'm glad mine hasn't been a problem. *knocks on wood* |
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08/01/2009 08:26:21 AM · #13 |
Originally posted by MattO:
The results might surprise you. I'm not sure what the deal is with that particular lens but its pretty common complaint.
Matt |
It is *very* surprising. It means that somehow a subject (the dust) within the lens is being focused and creating an image at the sensor plane. That is very, very odd. |
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08/01/2009 08:50:55 AM · #14 |
Originally posted by jbsmithana:
I would think that a trip to the Canon repair facility would take care of the problem. Should be covered by warranty. |
OH! Really? I hope so.
Originally posted by kirbic:
Originally posted by MattO:
The results might surprise you. I'm not sure what the deal is with that particular lens but its pretty common complaint.
Matt |
It is *very* surprising. It means that somehow a subject (the dust) within the lens is being focused and creating an image at the sensor plane. That is very, very odd. |
Until about four or five weeks ago I was a firm beliver in that too. Never even considered it to be "IN" the lens. |
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08/01/2009 09:20:26 AM · #15 |
Try this experiment before you ship off the lens.
Pick a bright uniform subject like the sky or white wall.
Set your 17-55 at 17mm@2.8 shoot repeat at f8 and again at f16 and finally at f32.
My 10-22mm will show every peice of sensor dust at a wide angle tight fstop. As I open up the aperture the dust isn't as visible.
Hope this makes sense , haven't had enough coffee yet...
Edit: spelling
Message edited by author 2009-08-01 09:50:16. |
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08/01/2009 09:54:26 AM · #16 |
Originally posted by Blind_squirrel:
Try this experiment before you ship off the lens.
Pick a bright uniform subject like the sky or white wall.
Set your 17-55 at 17mm@2.8 shoot repeat at f8 and again at f16 and finally at f32.
My 10-22mm will show every peice of sensor dust at a wide angle tight fstop. As I open up the apeture the dust isn't as visible.
Hope this makes sense , haven't had enough coffee yet... |
OK... Will do. I'll get back to ya. I was reviewing some pictures and It is only under certain conditions (Wide) and apertures (not sure yet) that it can be seen.
Here is a 100% crop of the upper left on a frame shot in landscape.
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08/01/2009 08:36:24 PM · #17 |
The vacuum feature is fantastic! I tried it on the dog first and it kind of sucked a patch of fur off but it's great on the rug!
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08/04/2009 10:39:15 PM · #18 |
Originally posted by Blind_squirrel:
Try this experiment before you ship off the lens.
Pick a bright uniform subject like the sky or white wall.
Set your 17-55 at 17mm@2.8 shoot repeat at f8 and again at f16 and finally at f32.
My 10-22mm will show every peice of sensor dust at a wide angle tight fstop. As I open up the aperture the dust isn't as visible.
Hope this makes sense , haven't had enough coffee yet...
Edit: spelling |
All right... This got me thinking and I did this experiment as stated. Started at 2.8 and climbed up...
AND THE RESULTS ARE IN!!!
The dust appeared at F10 and got darker the smaller the aperture.
OKâ€Â¦ Soâ€Â¦ But I never saw the dust with my 50 or the 100â€Â¦ I even looked at the sensor with a doubler lens and couldn’t see it.
Re-shot the test with the 50 andâ€Â¦
The sensor dust wins again! And I doubted.
I guess I always shot the wider apertures with the 50 and therefore, never imaged the dust on the sensor. While I often shoot landscapes with the 17-55 at F8 and higher. But it̢۪s there. Called Best Buy and they said it is covered by my extended warranty.
However the lens has so much dust in there, it looks like a 3-D image of an ameba getting ready to divide. I can see dust on at least three different layers of the internal optics. It’s got to go back to Daisy Hill Lens Farm. Er... Ahâ€Â¦ I mean Canon. I swear I think the dust on the sensor, fell out of the lens. Everything is this lens’s fault. WWII, the red spot on Jupiter, homelessness and of course all my pictures scoring under 6 on DPC.
Dale
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