Fun with Fungus.!
Posted 07/11/2010 - 19:12
Link
First job, is to remove the finishing ring, from the front of the lens.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0007-3.jpg[/IMG]
This is done by cutting a double sided sticky pad into 4 pieces, and sticking them to the ring, as in the above picture.
We now place an M42 rear lens cap on the pads and press down firmly.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0008-5.jpg[/IMG]
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0007-3.jpg[/IMG]
This is done by cutting a double sided sticky pad into 4 pieces, and sticking them to the ring, as in the above picture.
We now place an M42 rear lens cap on the pads and press down firmly.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0008-5.jpg[/IMG]
No man is worth his salt, who has not been banned from at least one Forum, and two Flickr groups.
Mowog.
Mowog.
Posted 07/11/2010 - 19:47
Link
Unscrew the ring, in an anti-clockwise direction.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0009-2.jpg[/IMG]
Now we can remove the filter threaded front tube. This is done by removing the three little screws, highlighted with white paint, in the picture above.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0011-1.jpg[/IMG]
To be continued... Much later!
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0009-2.jpg[/IMG]
Now we can remove the filter threaded front tube. This is done by removing the three little screws, highlighted with white paint, in the picture above.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0011-1.jpg[/IMG]
To be continued... Much later!
No man is worth his salt, who has not been banned from at least one Forum, and two Flickr groups.
Mowog.
Mowog.
Posted 07/11/2010 - 21:29
Link
mowog wrote:
First job, is to remove the finishing ring, from the front of the lens.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0007-3.jpg[/IMG]
This is done by cutting a double sided sticky pad into 4 pieces, and sticking them to the ring, as in the above picture.
We now place an M42 rear lens cap on the pads and press down firmly.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0008-5.jpg[/IMG]
Great tip re removal of the finishing ring. I will now have a go at my fungus infested 134 2.5 that has been sitting waiting a sort out...
First job, is to remove the finishing ring, from the front of the lens.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0007-3.jpg[/IMG]
This is done by cutting a double sided sticky pad into 4 pieces, and sticking them to the ring, as in the above picture.
We now place an M42 rear lens cap on the pads and press down firmly.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0008-5.jpg[/IMG]
Regards
David
Retired at last - now all that time for photography - you would think: wink:
David
Retired at last - now all that time for photography - you would think: wink:
Posted 07/11/2010 - 22:29
Link
With the front tube removed, we have easy access to the front element retaining ring.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0012-2.jpg[/IMG]
The element is held in place by the inner ring (marked white) in the picture, above.
The correct tool for removing these rings, is a lens spanner. I do not have one. Fortunately, they were not very tight, and I was able to undo them with my fingernails. The rings undo anti-clockwise.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0013-1.jpg[/IMG]
With the ring removed, the front element will drop out.
We can now remove the second element assembly. If the retaining ring is tight and you do not have a lens spanner, a steel rule placed across the ring and located in the slots, can be used to loosen the ring. - But only if it does not foul the lens element!
No connection to photobucket again!
Continued after Match of the day 2...
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0012-2.jpg[/IMG]
The element is held in place by the inner ring (marked white) in the picture, above.
The correct tool for removing these rings, is a lens spanner. I do not have one. Fortunately, they were not very tight, and I was able to undo them with my fingernails. The rings undo anti-clockwise.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0013-1.jpg[/IMG]
With the ring removed, the front element will drop out.
We can now remove the second element assembly. If the retaining ring is tight and you do not have a lens spanner, a steel rule placed across the ring and located in the slots, can be used to loosen the ring. - But only if it does not foul the lens element!
No connection to photobucket again!
Continued after Match of the day 2...
No man is worth his salt, who has not been banned from at least one Forum, and two Flickr groups.
Mowog.
Mowog.
Posted 07/11/2010 - 23:53
Link
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0014.jpg[/IMG]
The second and third element assembly also unscrews anti-clockwise.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0015-1.jpg[/IMG]
Below, we see the second and third elements seperated.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0016.jpg[/IMG]
With the front group removed, we can turn our attention to the rear group.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0017-1.jpg[/IMG]
Remove the five mount retaining screws.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0018-1.jpg[/IMG]
DO NOT REMOVE THE APERTURE RING! - It is not necessary and doing so risks losing the tiny spring and ball baring within.
More connection problems.!
To be continued...
The second and third element assembly also unscrews anti-clockwise.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0015-1.jpg[/IMG]
Below, we see the second and third elements seperated.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0016.jpg[/IMG]
With the front group removed, we can turn our attention to the rear group.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0017-1.jpg[/IMG]
Remove the five mount retaining screws.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0018-1.jpg[/IMG]
DO NOT REMOVE THE APERTURE RING! - It is not necessary and doing so risks losing the tiny spring and ball baring within.
More connection problems.!
To be continued...
No man is worth his salt, who has not been banned from at least one Forum, and two Flickr groups.
Mowog.
Mowog.
Posted 08/11/2010 - 00:37
Link
With the bayonet mount removed, we can now simply unscrew the rear group assembly by hand... Again, anti-clockwise.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0019.jpg[/IMG]
Here are the two rear elements seperated
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0020-2.jpg[/IMG]
Ideally, the rear element should be removed from it's housing, but the retaining ring was very tight and I could not undo it. Not really a problem, as we can clean it as it is.
Now that we have removed all of the glass from the barrel, We can set to cleaning.
Dip a cotton bud into the vinegar and swab each element gently. Leave the vinegar on the glass for a few minutes, to do it's work of killing the fungus.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0024-1.jpg[/IMG]
After the vinegar treatment, wash the elements in soapy water. I used washing up liquid. Wash until 'squeaky' clean, then rinse well in clean running water to remove all traces of the detergent.
Dry immediately with a soft, lint free cloth.
Here we see the now cleaned elements laid out in order.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0022.jpg[/IMG]
The lens is now cured of it's infection and can be reassembled.
Reassembly is of course, the reverse of the method we used for the strip down.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0019.jpg[/IMG]
Here are the two rear elements seperated
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0020-2.jpg[/IMG]
Ideally, the rear element should be removed from it's housing, but the retaining ring was very tight and I could not undo it. Not really a problem, as we can clean it as it is.
Now that we have removed all of the glass from the barrel, We can set to cleaning.
Dip a cotton bud into the vinegar and swab each element gently. Leave the vinegar on the glass for a few minutes, to do it's work of killing the fungus.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0024-1.jpg[/IMG]
After the vinegar treatment, wash the elements in soapy water. I used washing up liquid. Wash until 'squeaky' clean, then rinse well in clean running water to remove all traces of the detergent.
Dry immediately with a soft, lint free cloth.
Here we see the now cleaned elements laid out in order.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0022.jpg[/IMG]
The lens is now cured of it's infection and can be reassembled.
Reassembly is of course, the reverse of the method we used for the strip down.
No man is worth his salt, who has not been banned from at least one Forum, and two Flickr groups.
Mowog.
Mowog.
Posted 08/11/2010 - 00:40
Link
Cor!... Wot a flamin' performance! - All that time to upload a few pictures.
Photobucket really is rubbish!... And so is wireless broadband!
Thanks for your patience and cooperation. And thanks to the mods, for tolerating this cock-up of a thread!
Thanks also to thoramay, for providing the patient.
Photobucket really is rubbish!... And so is wireless broadband!
Thanks for your patience and cooperation. And thanks to the mods, for tolerating this cock-up of a thread!
Thanks also to thoramay, for providing the patient.
No man is worth his salt, who has not been banned from at least one Forum, and two Flickr groups.
Mowog.
Mowog.
Posted 08/11/2010 - 03:35
Link
Nice job mowog.
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Posted 08/11/2010 - 07:26
Link
Very well documented Mowog, you got there in the end
Is the 50mm 'A' lens the same?
Is the 50mm 'A' lens the same?
Half Man... Half Pentax ... Half Cucumber
Pentax K-1 + K-5 and some other stuff
Algi
Pentax K-1 + K-5 and some other stuff
Algi
Posted 08/11/2010 - 07:32
Link
Did you get it back together, and working?
Andrew
KR, Pentax 55-300 DAL, Pentax DA 17-55, Pentax 35-80, Generic grip, Generic remote, Nissin Flash. HISTORY - MZ 50, MZ 60, *istDS, KM, K20D, Nikon F60, Nikon F90. Large assortment of Point and shoot film and Digital, Sigma 70-300 APO DG, Samyang 500mm mirror lens, Sigma lenses of all assortments. K20D now sold. Sad to see it go, but makes room for an eventual upgrade to the K5 or the K4?
KR, Pentax 55-300 DAL, Pentax DA 17-55, Pentax 35-80, Generic grip, Generic remote, Nissin Flash. HISTORY - MZ 50, MZ 60, *istDS, KM, K20D, Nikon F60, Nikon F90. Large assortment of Point and shoot film and Digital, Sigma 70-300 APO DG, Samyang 500mm mirror lens, Sigma lenses of all assortments. K20D now sold. Sad to see it go, but makes room for an eventual upgrade to the K5 or the K4?
Posted 08/11/2010 - 08:08
Link
You don't actually need to remove the filter threaded part or indeed the bayonet mount - the element groups will unscrew anyway.
Be careful using washing up liquid as some of them include additives designed to make glasses shine - great for impressing the mother in law at xmas dinner but not such a good idea with optical glass!
I just used computer screen cleaning spray and a cotton bud to polish the mould off last time, then a quick going over with a lens pen to remove any remaining marks. If you're finding it hard to handle the elements without getting fingerprints on them then try putting a blob of blutack on what will be the outer side, use that as a handle while cleaning the inside and to install the part, then remove the blutack and polish the outer side.
Be careful using washing up liquid as some of them include additives designed to make glasses shine - great for impressing the mother in law at xmas dinner but not such a good idea with optical glass!
I just used computer screen cleaning spray and a cotton bud to polish the mould off last time, then a quick going over with a lens pen to remove any remaining marks. If you're finding it hard to handle the elements without getting fingerprints on them then try putting a blob of blutack on what will be the outer side, use that as a handle while cleaning the inside and to install the part, then remove the blutack and polish the outer side.
Matt
Shooting the Welsh Wilderness with K-m, KX, MX, ME Super and assorted lenses.
Shooting the Welsh Wilderness with K-m, KX, MX, ME Super and assorted lenses.
Posted 08/11/2010 - 14:54
Link
When I mentioned to mowog that I would like to know how he managed the cleaning operation, I certainly did not expect such a comprehensive response. I am facinated by the proceedure, beyond my shaky hands. Thanks mowog. You have given me, and many others an insight to how a lens is constructed and in a way that clearly demonstrates your abilities. Your star has risen greatly.
By the way, which team do you support? If it was a London team then match of the day2 was poor watching for you. I dare not say who I support and who benifited greatly by the results!!!
regards Thoramay.
By the way, which team do you support? If it was a London team then match of the day2 was poor watching for you. I dare not say who I support and who benifited greatly by the results!!!
regards Thoramay.
Posted 08/11/2010 - 15:02
Link
THat's great!
I have an old lens which doesn't fit either of my cameras, so I might just strip that for practice, so I know what to expect if I ever need to do one for real!
I have an old lens which doesn't fit either of my cameras, so I might just strip that for practice, so I know what to expect if I ever need to do one for real!
Getting there! Thanks to you guys
Pentax K3ii, Pentax K10d, Kit lens ( 18-55mm ), 50mm f1.7 lens, Tamron 70-300mm lens, Prinzflex 70-162 manual lens, Various old flashes.
Pentax K3ii, Pentax K10d, Kit lens ( 18-55mm ), 50mm f1.7 lens, Tamron 70-300mm lens, Prinzflex 70-162 manual lens, Various old flashes.
Add Comment
To leave a comment - Log in to Pentax User or create a new account.
753 posts
18 years
London.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0004-1.jpg[/IMG]
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0003-3.jpg[/IMG]
And here is the stuff we will use to clean it.
[IMG]http://i845.photobucket.com/albums/ab13/orwo/_IGP0006-4.jpg[/IMG]
I am trying to upload these pictures from Photobucket... Which is bleedin' useless!. Either I can't connect back to it from here, or it runs very slowly. Also my signal keeps dropping and I have to start all over again. I am having to do this bit by bit, over many posts, so I would be grateful if there are no other posts in this thread, until I have finished the piece... Which might take all bloody night, the way things are!
To be continued...
Mowog.