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Waynemel
Tinkerer
Username: Waynemel
Post Number: 181
Registered: 08-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, December 03, 2010 - 08:08 pm: | 
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I have started the job of replacing the bellows on my Isolette II, but have run into a snag.
I have tried to remove the shutter assembly by removing the retaining nut on the back, but it will not turn completely. It starts to loosen at first, but after about 2 turns is tightens right up. Is there a trick to this? Have the threads got some laquer or other locker on them (the camera is in original condition). I am afraid to apply too much force and possibly damage the threads. |
Hanskerensky
Tinkerer
Username: Hanskerensky
Post Number: 64
Registered: 05-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, December 04, 2010 - 05:43 am: |
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That's not a normal situation. The retaining ring which fixes the shutter/lens to the lensplate should come of without a hitch. Turn normally CounterClockWise.
Only thing i can imagine is that the thread was damaged during an earlier service.
Maybe apply some MICROdrops of WD-40 (i.e. with a needle, NOT SPRAY) between the ring and the shutterbarrel and try to keep the ring as straigth as possible while removing. |
Barnum
Tinkerer
Username: Barnum
Post Number: 190
Registered: 10-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, December 04, 2010 - 06:14 am: |
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It certainly sounds as if someone cross-threaded the ring at some time in the past. Are you attempting to remove it while the camera is still intact? If so, it will be easier to cut the lens assmbly free first, since you are replacing the bellows anyway. |
Waynemel
Tinkerer
Username: Waynemel
Post Number: 182
Registered: 08-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, December 04, 2010 - 06:49 am: |
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I didn't think this was normal. If it has been cross threaded, it happened at the factory, because the camera looks completely untouched.
I will try some lubrication and work the threads carefully. I may have to cut away the old bellows to make it easier.
Thanks for the suggestions. |
Waynemel
Tinkerer
Username: Waynemel
Post Number: 183
Registered: 08-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, December 04, 2010 - 08:15 am: |
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The lubrication worked. I had to work the nut back and forth, but it came off fairly easily. There was some grit or metal shavings in the threads.
Now, top removal...is the screw in the film advance knob a right or left hand thread? |
Msiegel
Tinkerer
Username: Msiegel
Post Number: 209
Registered: 03-2008
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, December 05, 2010 - 08:34 am: |
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Hi,
have a look here:
http://www.rolandandcaroline.co.uk/topplate.html
Text says "The screw on top of the winder (fig. 3) has a reverse thread."
Hope it helps.
Fine site on Isolettes BTW - including bellows replacement.
Rgds
Martin |
Hanskerensky
Tinkerer
Username: Hanskerensky
Post Number: 65
Registered: 05-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, December 05, 2010 - 11:23 am: |
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Wayne, that screw should be turned Clockwise to remove.
I have made several sets of repair jobs on the Isolette. You can find that collection here :
http://www.flickr.com/photos/29504544@N08/collections/72157613557854284/ |
Vinzenz
Tinkerer
Username: Vinzenz
Post Number: 47
Registered: 06-2008
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, January 04, 2011 - 06:02 pm: |
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Does anyone know where to buy new (leather) bellows for the Isolette at a reasonable price?
Is there a good address for thin leather sheets to produce bellows? I also have a couple of old wooden cameras with broken bellows.
Thanks
Vinzenz |
Waynemel
Tinkerer
Username: Waynemel
Post Number: 1
Registered: 08-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, January 05, 2011 - 05:24 am: |
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Try this site for leather.
http://www.columbiaorgan.com/col/ |
Jab101
Tinkerer
Username: Jab101
Post Number: 1
Registered: 01-2011
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, January 05, 2011 - 09:23 am: |
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Try these 2 as well
http://www.rolandandcaroline.co.uk/html/isolette_bellows.html
http://www.sandehalynch.com/isolette.htm |
Sandeha_lynch
Tinkerer
Username: Sandeha_lynch
Post Number: 2
Registered: 01-2011
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, January 14, 2011 - 04:06 pm: |
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Thanks for the plug.
I am still making bellows for Isolettes. Not leather though. I've never found any leather thin enough that is also 100% lightproof - lightproof to a flashgun, that is. I use a thin coated woven lightproof fabric with a coloured acetate for the outer layer.
http://www.sandehalynch.com/isolette.htm |
Waynemel
Tinkerer
Username: Waynemel
Post Number: 10
Registered: 08-2009
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, January 14, 2011 - 05:48 pm: |
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I used a woven nylon fabric with a rubberized backing. I used 3 layers to make sure it was light proof, but I don't think it is completely. When held up to a very bright light source (halogen lamp) I can still see a reddish tint. The three layers also makes it a little thicker than I would like.
I have since thought of a different method. I would use two layers of the fabric and put a layer of light proof plastic (from photo paper packaging) in between. That would also result in a thinner result.
I will try my first bellows to see how it works.
I also discovered an interesting material for the stiffening ribs. I used an overhead transparency. I had ones that could be run through and ink-jet printer, so I printed the rib pattern and cut it out. It's thin enough, but also very stiff.
 |
Sandeha_lynch
Tinkerer
Username: Sandeha_lynch
Post Number: 3
Registered: 01-2011
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, January 15, 2011 - 10:42 am: |
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I also use an inkjet print-out on transparency sheets for the ribs for small bellows. It works very well. |
