Canon LTM Spoiled Canon 50mm 1.2

Canon M39 M39 screw mount bodies/lenses
ChrisN said:
Very lucky - well done. I have one of these with a similar problem. If the fungus is bad enough it secretes an acid which etches into the glass, leaving a haze that cannot be easily polished off. I sent mine to Essex (in USA), and it came back with scratches but the etching stubbornly in place. I've recently discovered Longman Optical in Tasmania, and sent them the element to see if they can tackle it. I'll let you know the outcome. The other person known to do this work is Focal Point / John Van Stelton.
Click to expand...

Thanks, ChrisN!
Any news would be appreciated.
 
I've seen the Oil from the helical creep in through the aperture mechanism and destroy that rear cemented pair. I made a Canon 50/1.2 out of two parts lenses, had to CUT the rear module out using a dremel. Broke three cutting blades. Lots of brass.
 
I have two of these beauties. Both have fogged on the element just aft of the aperture. Both had their helical lubrication turn to toffee within a month of each other. Wouldn't dream of selling either one.
 
Paul C. Perkins said:
I have two of these beauties. Both have fogged on the element just aft of the aperture. Both had their helical lubrication turn to toffee within a month of each other. Wouldn't dream of selling either one.
Click to expand...

what kind of grease is used to replace the original?
ive heard MoS2
 
raid said:
Mark,
I may also have hit gold with my example of the 50/1.2. Since DAG adjusted the elements, it is very sharp. I can shoot in scenes that may cause flare in somelenses, and I see no flare. In a recent thread with the lens, Gabriel MA commented on the lack of flare with my lens.
Click to expand...

Raid,
Could you please point me to that thread you are refering to about canon 50/1.2 ? I cant seem to find it.
Thanks.
 
Last edited:
Thanks - now that I looked at it - I remember that thread. I even have a couple of pics there too. I just like to see pics from this lens!
 
Erik,

I had both of mine fixed at ESSEX. I don't know what kind of great they used. When the elements fogged - I took a deep breath - and fixed that myself. One one - I've done it twice.
 
Today I 've received first film shot with the cleaned lens. FEw pics if you don't mind.
2619120850_b0a53988fc_o.jpg

2618297953_16dc0f7a67_o.jpg
 
Last edited:
You must log in or register to reply here.
Back
Top Bottom