Some weird aperture

peter fran

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Peter Francis
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PLEASE bear in mind that I'm not that technically minded when it comes to the talk on cameras but I shall try and explain this the best way possible.
Had my D750 for about 3 months now and have various lenses for it.ALL work fine but I recently purchased a Nikkor 8-15mm fisheye lens from ebay.On inspection the lens looks brand new and worked fine for about an hour.When I swapped lens to my Sigma 20mm art and then swapped back to my fisheye the top display on my D750 started flashing with the f/stop showing "0" intermittently.I noticed also an "Err" message very briefly flash within all this chaotic display.When I put any of my other lenses back on everythings fine more often than not once I put the fisheye back on it starts working again but not all the time.The common thing in all this when it happens is that I'm outside but not in any harsh weather.The other thing is that the problem lens in question doesn't have a mechanical lever to control the aperture.All me other lenses which work fine has this lever.I have a few video clips of it happening but can't upload them as its saying the files are too large.
Really hope you can make sense of whats happening or even what I'm on about really because I have not got a clue.They've responded to my email and I've got warranty left on it
 
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I've done that (properly I hope) but seems to still do it.Strange because I'm sat here with it now and its working perfectly
 
E finity returns are sent to a uk address
 
I haven't any dedicated cleaning fluid so I used some aftershave on a cotton bud
 
I don't know the age or the usage of the lens but when I received it it looked brand new
 
First thing is that’s obviously not what you clean a lens or camera with , aftershave will have essential oils in it . You need some lens cleaning fluid ,plus cotton buds will leave fine strands of cotton all over the place ,they should only be used externally or not at all preferably ,
You also need a micro fibre cleaning cloth as per what you use To clean spectacles .

my view is there will be nothing wrong with lenses or camera they just need cleaning properly ..if you feel capable of doing it yourself after reading this go for it . If not send it/ them off to a proper company ,Lehman’s in stoke on Trent are good ..

you have around 2 grandes worth of equipment and tried to clean it with 20 pence worth of crap
 
First thing is that’s obviously not what you clean a lens or camera with , aftershave will have essential oils in it . You need some lens cleaning fluid ,plus cotton buds will leave fine strands of cotton all over the place ,they should only be used externally or not at all preferably ,
You also need a micro fibre cleaning cloth as per what you use To clean spectacles .

my view is there will be nothing wrong with lenses or camera they just need cleaning properly ..if you feel capable of doing it yourself after reading this go for it . If not send it/ them off to a proper company ,Lehman’s in stoke on Trent are good ..

you have around 2 grandes worth of equipment and tried to clean it with 20 pence worth of crap
Fair point (y)
 
First thing is that’s obviously not what you clean a lens or camera with , aftershave will have essential oils in it . You need some lens cleaning fluid ,plus cotton buds will leave fine strands of cotton all over the place ,they should only be used externally or not at all preferably ,
You also need a micro fibre cleaning cloth as per what you use To clean spectacles .

my view is there will be nothing wrong with lenses or camera they just need cleaning properly ..if you feel capable of doing it yourself after reading this go for it . If not send it/ them off to a proper company ,Lehman’s in stoke on Trent are good ..

you have around 2 grandes worth of equipment and tried to clean it with 20 pence worth of crap

It’s a brand new lens from e-finity, it shouldnt be dirty in the first place.
 
It’s a brand new lens from e-finity, it shouldnt be dirty in the first place.

I may be reading this wrong but cant see where he said its a new lens(8-15). He does state he bought it on ebay so i just thought it was used. Maybe the OP could clarify as he only states it looks like new.
 
First thing is that’s obviously not what you clean a lens or camera with , aftershave will have essential oils in it . You need some lens cleaning fluid ,plus cotton buds will leave fine strands of cotton all over the place ,they should only be used externally or not at all preferably ,
You also need a micro fibre cleaning cloth as per what you use To clean spectacles .

my view is there will be nothing wrong with lenses or camera they just need cleaning properly ..if you feel capable of doing it yourself after reading this go for it . If not send it/ them off to a proper company ,Lehman’s in stoke on Trent are good ..

you have around 2 grandes worth of equipment and tried to clean it with 20 pence worth of crap
Can you recommend a good cleaner to use?
 
I may be reading this wrong but cant see where he said its a new lens(8-15). He does state he bought it on ebay so i just thought it was used. Maybe the OP could clarify as he only states it looks like new.
The camera is about 3 months old and the lens I bought from ebay as "used" but looks pretty much brand new
 
Can you recommend a good cleaner to use?
Eclipse is a well known brand sold by wex £12.99 a bottle ,you won’t need a lot hopefully , I would also check with a magnifying glass for cotton strands off the ear buds, if your anywhere near Chester I can do it for you
 
Eclipse is a well known brand sold by wex £12.99 a bottle ,you won’t need a lot hopefully , I would also check with a magnifying glass for cotton strands off the ear buds, if your anywhere near Chester I can do it for you
Thanks
 
Try rubbing the contacts with an eraser as many have had luck with that method- make sure its the contact side downwards so any stray bits don't stick to the lens anywhere. Also do the camera contacts the same way if you don't have anything like Eclipse at hand. If it doesnt fix the issue i would suspect the lens or camera is a bit more used than you think and a new set of contact plates would be required. Just so we get this right-

only get it on the 8-15 lens
Lens is used but unknown it age or history
Camera is only 3 months old
All other lenses are fine on the camera.
You have tried to clean using shaving foam

make sure there is no shaving foam residue anywhere even if it cant be seen.

double check your getting a firm/positive click as the lens attaches to the camera.
Try hold the lens doenwards or at a steep angle to see if you can increase the times you get the error.
 
Try rubbing the contacts with an eraser as many have had luck with that method- make sure its the contact side downwards so any stray bits don't stick to the lens anywhere. Also do the camera contacts the same way if you don't have anything like Eclipse at hand. If it doesnt fix the issue i would suspect the lens or camera is a bit more used than you think and a new set of contact plates would be required. Just so we get this right-

only get it on the 8-15 lens
Lens is used but unknown it age or history
Camera is only 3 months old
All other lenses are fine on the camera.
You have tried to clean using shaving foam

make sure there is no shaving foam residue anywhere even if it cant be seen.

double check your getting a firm/positive click as the lens attaches to the camera.
Try hold the lens doenwards or at a steep angle to see if you can increase the times you get the error.

All are correct apart from the shaving foam.It was aftershave
 
I don't know the 8-15 lens, but does it have a manual aperture ring? If so, set it to the smallest aperture and try it again.
 
Yeah never thought of that one , if it has apertures on it set it to f32 etc and lock up the switch on the right hand end of the scale..same applies to all lenses with apertures on them
 
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I may be reading this wrong but cant see where he said its a new lens(8-15). He does state he bought it on ebay so i just thought it was used. Maybe the OP could clarify as he only states it looks like new.

Well e-finity sell new lenses usually. Maybe Thier eBay store some times sells open box items. Even so, it shouldn’t be dirty.
 
Electronic aperture could be faulty or a faulty contact.
 
Well e-finity sell new lenses usually. Maybe Thier eBay store some times sells open box items. Even so, it shouldn’t be dirty.

I read the OP's initial post as the body was bought from E-Infinity, not the lens?

GC
 
I don't know the 8-15 lens, but does it have a manual aperture ring? If so, set it to the smallest aperture and try it again.

The 8-15mm E series doesn't have an aperture ring.

GC
 
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