canon lens service
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Discussion

hab1966

Original Poster:

1,126 posts

241 months

Wednesday 7th December 2011
quotequote all
Annoyingly, it appears that my 24-105L lens has some dust/debris inside the lens.

Any suggestions as to who to send the lens to for cleaning/servicing?

TigerS6

521 posts

279 months

Wednesday 7th December 2011
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I sent my 100-400L to the canon service centre at elstree for a clean and service.
it was a fixed fee £60
They do another service for £100 I think it was, can't recall what was extra in that, probably aperature blades reset/clean/replace?

I took it into them on day1, they did the service day 2, and it was back with me by special delivery on day 3.

gjc10212

271 posts

235 months

Simpo Two

92,708 posts

294 months

Wednesday 7th December 2011
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Fixation for me too.

TigerS6

521 posts

279 months

Wednesday 7th December 2011
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fixation never replied to me, hence I went to canon frown

Luca Brazzi

3,983 posts

294 months

Wednesday 7th December 2011
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Fixation for me too. Excellent service, and also chose their postal service back to me. Always been very very good.

dibbly dobbler

11,490 posts

226 months

Wednesday 7th December 2011
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Do these 'services' actually do any in terms of recalibrating a lens ?

cirks

2,544 posts

312 months

Wednesday 7th December 2011
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dibbly dobbler said:
Do these 'services' actually do any in terms of recalibrating a lens ?
although not explicitly mentioned on my invoice from Canon when I had my 100-400L repaired (inside plastic ring came loose) it did seem to come back 'sharper' so I'm guessing they may have recalibrated as part of the service - that was a fixed price repair rather than 'service' though.

LongQ

13,864 posts

262 months

Wednesday 7th December 2011
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hab1966 said:
Annoyingly, it appears that my 24-105L lens has some dust/debris inside the lens.

Any suggestions as to who to send the lens to for cleaning/servicing?
Unless it is a very substantial amount of dust/debris AND you are fairly certain it is affecting image quality or some other aspect of the lens performance you could simply ignore it. Cleaning it probably would make no difference.

I might, however, be interesting to know where the stuff is getting in or coming from.

Luca Brazzi

3,983 posts

294 months

Wednesday 7th December 2011
quotequote all
Fixation are one of Canon's few authorised professional repair centres. They have always reclibrated my lenses when I've taken them in for service or repair. They also take into account the turn around times that you maybe entitled to as a Canon Professional user. In my opinion, it's the same as taking your equipment to Canon.

hab1966

Original Poster:

1,126 posts

241 months

Wednesday 7th December 2011
quotequote all
LongQ said:
Unless it is a very substantial amount of dust/debris AND you are fairly certain it is affecting image quality or some other aspect of the lens performance you could simply ignore it. Cleaning it probably would make no difference.

I might, however, be interesting to know where the stuff is getting in or coming from.
I had thought of leaving it be, as it only came to light (pardon the pun) when i was taking night time shots of a full moon over a loch on a recent holiday - cant say ive seen it in daylight shooting. Looking into the lens i can see a spot of dirt and was hoping that if i sent the lens off they would strip it down and clean the elements.

warehouseexpress said:
The L-series is Canon's flagship professional lens range, combining outstanding image performance and ultimate operability with dust and moisture resistant construction.
Rather annoyed that i appear to have picked up dirt/dust in a supposed flagship lense with dust resistant construction. Maybe i should contact canon and see what they will do?

LongQ

13,864 posts

262 months

Wednesday 7th December 2011
quotequote all
hab1966 said:
Rather annoyed that i appear to have picked up dirt/dust in a supposed flagship lense with dust resistant construction. Maybe i should contact canon and see what they will do?
'Resistant' not 'proof'.

What sort of effect could you see on your night shots?

Do you have a filter fitted to the lens? (May sound like an odd question in context but bear with me ....)


Luca Brazzi

3,983 posts

294 months

Wednesday 7th December 2011
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'ghosting', reflections off the backside of the filter glass?

hab1966

Original Poster:

1,126 posts

241 months

Thursday 8th December 2011
quotequote all
LongQ said:
'Resistant' not 'proof'.

What sort of effect could you see on your night shots?

Do you have a filter fitted to the lens? (May sound like an odd question in context but bear with me ....)
Didn't have any filters on the lens.

Hopefully if you click the image below you will see a larger version.

I was playing/learning with the camera at night trying to get a picture of the moon over the loch. I just happen to spot the blue/green flare in the lower section of the picture. This made me start to look at the lens and I spotted the dust/debris within the lens. Whether the two are linked I don't know, but I now know there is something in the lens and it's annoying as I cant shift it.



Luca Brazzi

3,983 posts

294 months

Thursday 8th December 2011
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I think the green flare is an internal reflection of some sort, just lens flare as it's pointed towards the moon. Similar to when you have the sun close to the centre of a frame.

Cheburator mk2

3,226 posts

228 months

Thursday 8th December 2011
quotequote all
LongQ said:
'Resistant' not 'proof'.

What sort of effect could you see on your night shots?

Do you have a filter fitted to the lens? (May sound like an odd question in context but bear with me ....)
I think the user manuals for my L stuff states that it only becomes dust proof with a filter fitted. I may be wrong though...

Luca Brazzi

3,983 posts

294 months

Thursday 8th December 2011
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Cheburator mk2 said:
I think the user manuals for my L stuff states that it only becomes dust proof with a filter fitted. I may be wrong though...
Not sure I've ever read that. The L series all have seals to keep out dust. No filter required as far as I know.

nellyleelephant

2,711 posts

263 months

Thursday 8th December 2011
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Pretty sure that some do need a filter for the best resistance to ingress.

Luca Brazzi

3,983 posts

294 months

Thursday 8th December 2011
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Really? Do you know which ones? All mine have little rubber rings where they mate to the camera. Same goes for the 580 flashes, versions 1 and 2 I think.

nellyleelephant

2,711 posts

263 months

Thursday 8th December 2011
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I think it may be all but the largest telephoto lenses which are too big for filters.

A filter is the last part of the sealing process from what I can make out.

A quick scan on the net shows that the 100-400 and 17-40 need filters to complete the seal (there will no doubt be more, but that's what I have!)

Edited by nellyleelephant on Thursday 8th December 15:04