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[Lensfan]

Hi,
Hope someone can help.
 
I have an old Chrome F4 Sonnar lens for a Hasselblad that I would like to dismantle and clean internally.
 
I don't have the money for a service and would like to tackle the job myself.  
 
Could someone p

[Lensfan]

The disassembly of the 80mm lens is described in Tomosy's book.  
 
Is the 150mm similar?
 
My 150mm lens looks like it has been flooded. The aperture blades are rusty (although work) and there is silt on one element!
Lensfan

[Glenn]

Unfortunately I cannot give you any details on the 150mm; however, as you have details on the 80mm why not see if you can carry out the same stripdown procedure? Given that you seem to be describing a piece of scrap in the optics present state, what h

[Lensfan]

Hi,
Thanks for your encouragement Glenn. I now have the lens apart. It was easier than I had thought.
 
Do you have any tips for cleaning rusty shutter blades? I used a q-tip with lighter fluid and rubbed a lot of the light rust off. I am think

[Glenn]

I always have a winchester of Phosphoric Acid sitting under the workshop sink, works wonders on really rusted mechanisms. The fact that the cleaned blades will have a dull grey phosphate coating in the refurbished lens, instead of the original blue/bl

[Lensfan]

Greatly appreciated advice Glenn. I'll try phosphoric acid on the more stubborn rust.

[Hrndnvalery]

Hi, Lensfan
How did you disassemble Sonnar 150 lens? I have oil on shutter blades of Sonnar 150 for Rollei 6000 and I am thinking to clean it myself, however I need to have initial directions. Should it be started from front or rear?