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Posted 07/12/2010 - 20:42
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I'm in the clear - picked mine up from Jessops (sorry SRS this time). 384xxxx serial and no marks to be found.
Alan B
Posted 08/12/2010 - 13:59
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Just picked up a K5. All OK. Ser No 3899xxx
bb2
bb2
K5, K20D, Bigma, Sigma EX 105, Sigma EX 10-20, Sigma EX 28-70 F2.8, Sigma Ex 1.4TC,
Pentax 135 F3.5, Pentax 30mm F2.8 , Pentax 50mm F1.7, Pentax 55mm F1.8,
Super Taks: 35mm F3.5, 50mm F1.4, 135mm F3.5, 200mm F4
Vivitar TX 200mm F3.5,Vivitar (Komine)135mm f2.8, Vivitar 2X TC, Vivitar T4 400mm F6.3
Tamron SP 35-80,80-210 F3.8, Helios 44M, Mir 1B 37mm F2.8, Jupiter 9 85mm F2, Chinon 28mm F2.8, 3M-5A 500mm F8 etc etc
Posted 08/12/2010 - 14:20
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bretti_kivi wrote:
Silly question; is it possible that the sensors with issues were on "early adopter" bodies?
Bret
My K5 was delivered from SRS on Dec 2nd, S/N-3865****, so I wouldn't say it was an "early adopter" problem
Silly question; is it possible that the sensors with issues were on "early adopter" bodies?
Bret
Posted 08/12/2010 - 15:51
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has anybody tried cleaning it off with alcohol?
Fired many shots. Didn't kill anything.
Posted 08/12/2010 - 15:59
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Maybe Chris at SRS can try this out for me...
Take a new k5 that does not have this problem from the package....
then fire off a lot of fast shots in continuous shooting... then check it again for spots. Oil flows best when warm, so do it in a warm environment please.
looking at those photos, many of those dark spots appear to have faint rings around them...
like you'd expect from a fluid, or lubricant.... then the next question is where did it come from, and is it permanently eating into a coating on the sensor or is it simply a matter of using a cleaner that will lift of the oil but not damage the sensor...
Take a new k5 that does not have this problem from the package....
then fire off a lot of fast shots in continuous shooting... then check it again for spots. Oil flows best when warm, so do it in a warm environment please.
looking at those photos, many of those dark spots appear to have faint rings around them...
like you'd expect from a fluid, or lubricant.... then the next question is where did it come from, and is it permanently eating into a coating on the sensor or is it simply a matter of using a cleaner that will lift of the oil but not damage the sensor...
Fired many shots. Didn't kill anything.
Posted 08/12/2010 - 16:05
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Don wrote:
has anybody tried cleaning it off with alcohol?
I don't fancy using cleaning swabs on a 1 week old camera.
has anybody tried cleaning it off with alcohol?
Posted 08/12/2010 - 16:06
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Don wrote:
has anybody tried cleaning it off with alcohol?
This has been thoroughly explained over at PF. There is photographic evidence, as well as a mathematical proof, that the marks are NOT on the surface of the AA filter. They are sandwiched between the AA filter and the sensor.
has anybody tried cleaning it off with alcohol?
Tim
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27”, Macbook Pro 17”, iPad, iPhone 3G
Flickr • Fluidr • PPG • Street • Portfolio site
Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27”, Macbook Pro 17”, iPad, iPhone 3G
Flickr • Fluidr • PPG • Street • Portfolio site
Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
Posted 08/12/2010 - 16:10
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I think there are two different issues here one is easily fixable.
One issue is blotches or stains UNDER the aa filter the other may be lubricant flinging off the mirror hinges onto the aa filter.
whatever they lube the moving parts with has to be very light and susceptable to flinging off, a heavier lube won't fling, but will generate friction and impede the speed at which the parts move...
One issue is blotches or stains UNDER the aa filter the other may be lubricant flinging off the mirror hinges onto the aa filter.
whatever they lube the moving parts with has to be very light and susceptable to flinging off, a heavier lube won't fling, but will generate friction and impede the speed at which the parts move...
Fired many shots. Didn't kill anything.
Posted 08/12/2010 - 16:13
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What makes you think there are two different types of blob? That would be a pretty extraordinary coincidence
Tim
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27”, Macbook Pro 17”, iPad, iPhone 3G
Flickr • Fluidr • PPG • Street • Portfolio site
Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27”, Macbook Pro 17”, iPad, iPhone 3G
Flickr • Fluidr • PPG • Street • Portfolio site
Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
Posted 08/12/2010 - 16:13
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From posts on the other forum the consensus is that the spots are on the underside of the AA filter or the top surface of the sensor (favourite appears to be the underside AA filter). Either way its unlikely that its being deposited on the sensor by the shutter, mirror or even the SR mechanism.
I agree though that the spots do resemble oil drops – especially as they form trials but it think its most likely they are the result of the assembly process or the cleaning stages during the manufacture of the filter or sensor.
I agree though that the spots do resemble oil drops – especially as they form trials but it think its most likely they are the result of the assembly process or the cleaning stages during the manufacture of the filter or sensor.
Posted 08/12/2010 - 16:18
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I don't think that's right. If you go back and look at the macro photos that DCUK took of the sensor, it clearly shows the offending blobs are actually particles of some sort. The ring is just the shadow.
Tim
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27”, Macbook Pro 17”, iPad, iPhone 3G
Flickr • Fluidr • PPG • Street • Portfolio site
Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27”, Macbook Pro 17”, iPad, iPhone 3G
Flickr • Fluidr • PPG • Street • Portfolio site
Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
Posted 08/12/2010 - 16:19
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thoughton wrote:
I don't think that's right. If you go back and look at the macro photos that DCUK took of the sensor, it clearly shows the offending blobs are actually particles of some sort. The ring is just the shadow.
particles of dust clinging to oil spots?
I don't think that's right. If you go back and look at the macro photos that DCUK took of the sensor, it clearly shows the offending blobs are actually particles of some sort. The ring is just the shadow.
Fired many shots. Didn't kill anything.
Posted 08/12/2010 - 16:23
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This is the photo I'm talking about, which clearly no one else has seen
DCUK's caption for the image was "Please note the fine white marks are the problem area, the bubble effect seen below the marks, is out of focus reflections from the light."
DCUK's caption for the image was "Please note the fine white marks are the problem area, the bubble effect seen below the marks, is out of focus reflections from the light."
Tim
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27”, Macbook Pro 17”, iPad, iPhone 3G
Flickr • Fluidr • PPG • Street • Portfolio site
Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27”, Macbook Pro 17”, iPad, iPhone 3G
Flickr • Fluidr • PPG • Street • Portfolio site
Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
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