replace shutter effect calibration ?

KIPAX

KIPAX

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KIPAX Lancashire UK
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I am pretty sure I am right about this but have googled and cant find if I am..

My camera is calibrated perfectly........
If I ahve the shutter replaced (its not gone but high count well over advised) will it effect the calibration.

I think not.. unless you where also replacing mirror box or something..

Anyone know for sure?

PS its a canon and I really dont want the calibration resetting or anything ..
 
On the surmise that you are referring to MFA 'calibrations' then perhaps logically not. However, what if they wipe it and as part of that they can't or don't reload all your settings before returning to you???
 
There's a very good chance it will change your settings; replacing the shutter involves complete teardown of the camera to include removing/reinstalling the sensor assembly... the shutter has to be removed from the back.
 
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No i dont mean my micro adjustment... I mean the actual camera... you can have the camera calibrated and canon do it within a range which is a bit pants... mine are perfect as is and wouldnt like to see the calibration changed...... Nothing to do with MFA :)
 
sk66 said:
There's a very good chance it will change your settings; replacing the shutter involves complete teardown of the camera to include removing/reinstalling the sensor assembly... the shutter has to be removed from the back.
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hmm I suppose that makes sense as well as my thoughts the other way.... guess a quick call to canon in order :)
 
KIPAX said:
No i dont mean my micro adjustment... I mean the actual camera... you can have the camera calibrated and canon do it within a range which is a bit pants... mine are perfect as is and wouldnt like to see the calibration changed...... Nothing to do with MFA :)
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Ah! I think I do recall reading of that under CPS that you can send bodies & lenses to Elstree and that they calibrate 'all' as a set.
 
Box Brownie said:
Ah! I think I do recall reading of that under CPS that you can send bodies & lenses to Elstree and that they calibrate 'all' as a set.
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yes they will.. or you can just send a camera or just a lens... mine works with all my lens and would hate it to come back slighly different if they re calibrate it.. like i say they do it to a range..
 
KIPAX said:
yes they will.. or you can just send a camera or just a lens... mine works with all my lens and would hate it to come back slighly different if they re calibrate it.. like i say they do it to a range..
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Yes, I surmise that they put the body on an optical calibration bench and you say calibrate it within a range of tolerance(s) and that will not necessarily be the same 'point' within the tolerance range as previously done. That is why I believe they request/suggest that a customer sends in the body & lens(es) so that the calibration is performed on such combo pairs.
 
Box Brownie said:
Yes, I surmise that they put the body on an optical calibration bench and you say calibrate it within a range of tolerance(s) and that will not necessarily be the same 'point' within the tolerance range as previously done. That is why I believe they request/suggest that a customer sends in the body & lens(es) so that the calibration is performed on such combo pairs.
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However with a 400 2.8, 300 2.8.. 70-200 and so on and so on its not really viable... Plus had a camera lens calibration done once many years ago and had to send back to be re done... wasnt happy.... to go through all that with all my lens... arrrgh ..
 
I have a genuine but dumb question: what's the advantage of getting the shutter replaced before it fails vs afterwards ?

I can understand not wanting it to fail whilst you're on a paid job, or on a trek across Antarctica, but isn't that's what second bodies are for ?

(I'm not trying to be rude or provoke a fight here, but given the concern about calibration, why send something off that's working fine, and risk it coming back different ?)
 
minimaltoo said:
I have a genuine but dumb question: what's the advantage of getting the shutter replaced before it fails vs afterwards ?
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Well you almost answered it in your second question :)

minimaltoo said:
I can understand not wanting it to fail whilst you're on a paid job, or on a trek across Antarctica, but isn't that's what second bodies are for ?
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Theres never a good time for a camera to fail while your on a paid job .. Having a backup body doesnt mean much when you have missed the shot and miss the next couple of minutes changing camera bodies

minimaltoo said:
(I'm not trying to be rude or provoke a fight here,
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its a perfecttly valid question :)



minimaltoo said:
but given the concern about calibration, why send something off that's working fine, and risk it coming back different ?)
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I wouldn't.. what I would do is ask if the calibration would be effected... hence the whole point of this thread and post #7 above where I state i will call canon and ask first... .. if they say yes it gets re calibrated then I have to make a decision which is more important to me......... if they say no calibration not affected then i can send off with confidence..
 
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Ah, gotcha ! Thanks for the detail.

I guess it's down to statistics - where on the bell curve of shutter failure you are, and what else can go wrong with a camera. Given the number of non-shutter failures that have prevented me from getting shots in the past, I suppose I just don't consider the impact of the shutter expiry as being as likely to get in my way as (for example) cold weather making my battery go from 50% to auto-shutoff in 10 shots.

Here's hoping your chat with Canon goes the right way !
 
If recalibration is necessary then a full overhaul/service might be worthwhile rather than just having the shutter replaced. The mirror mechanism will have made as many operations as the shutter, so that might be better replaced at the same time? Putting this in car terminology, there's not much point in spending money to replace the clutch if the big end bearings are about to go, as you'll be paying twice for a strip down, rebuild and set-up. A chat with the Canon service engineer may be best to see what they recommend.
 
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Mr Badger said:
If recalibration is necessary
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Then I wont be sending it in :)

I prefer knowing I ahve a perfectly calibrated camera and fully confident that every shot will be bang on... that trumps the worry of a shutter going....


I really dont trust canon to send it back with same calibration :(
 
I read on another site that canon working tolerances are no better than within the depth of field. So nothing like critical.

In any event I would tend to continue running it as it is, until it starts to show symptoms.
Then get rid, and get a new body. If the shutter is blown then much else is likely to be well past its best or behind the times.
 
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