Canon 50mm 1.4 with haze

Bakknar · Feb 2, 2020

Hi, I bought a 50mm 1.4 fd lens on ebay. I asked the guy if the lens have fungus or something that can affect the image and he say that the lens is on perfect conditions (no fungus, almost now scratches...). But when the lens came I did the flashlight test and the lens look like they have haze and somehow they where clean but only on a small cicle and not to well.I link some photos that I took. I'm not an expert and I need help to see if it's bad and I have to return the lens.

https://imgur.com/a/c1zuJJj

https://imgur.com/a/XGhksLD

https://imgur.com/a/atqu43K

Kino · Feb 2, 2020

Try cleaning the lens properly with lens cleaner and lens tissues or a very clean microfiber cloth and then evaluate.

The lens looks very dirty, but until you get the surface dirt off the front and rear lens elements, you cannot evaluate the lens properly.

If in doubt, send it back.

neilt3 · Feb 2, 2020

There looks to be dirty , greasy finger prints on the glass , amongst the rest of the dirt .
Untill you clean it you won't be able to tell if the insides clear or not .

Bakknar · Feb 2, 2020

I try to open it but I can get over this part (number 3 on this image). I don't have that tool but I tried with something similar but it wont move.Any tips?
https://www.flickr.com/photos/85341661@N04/27331290281

StepheKoontz · Feb 2, 2020

Bakknar said:
I don't have that tool but I tried with something similar but it wont move.Any tips?
https://www.flickr.com/photos/85341661@N04/27331290281

Yeah, get that tool.

Kino · Feb 2, 2020

Well now you are committed to keeping the lens! Good luck!

Ko.Fe. · Feb 2, 2020

I highly recommend to google old things like this lens before purchase. This lens is known for reappearing fog.
Where are instructions for how to clean it as well. On-line.

neilt3 · Feb 2, 2020

Bakknar said:
I try to open it but I can get over this part

You tried to open it ?
Did you clean the lens first , i.e , the outside of the lens ?
The pictures you show looked like dirt on the outer surface of the lens .
As already said , lens cleaning fluid and a lens cloth should have been used first .
Then re-asses the condition of the lens .
If the haze or whatever is inside the lens you should have sent it back as not as discribed .
Now you've started dismantling a lens when you don't know what your doing or have the right tools , your stuck with the lens .
I hope you don't try sending it back , as it's no longer in the condition it was sent to you in .[/QUOTE]

John Koehrer · Feb 2, 2020

#1 don't take things like this apart.
#2 The pictures you sent along are for cleaning the aperture blades not the lenses.
#3 Using those directions makes you go way deeper into the lens than you have/had to.
#4 DON'T SCREW WITH THE BLADES. YOU WILL END UP WITH A NOT VERY USEFUL
PAPER WEIGHT.

To clean lenses you just need to remove the elements. The rear element just unscrews and the front
is held in place by a ring under the beauty ring.

Bakknar · Feb 4, 2020

Hi, thanks for all the replies. I got the tool today and carefully took the lens aparts (it was my fist time but I followed some tutorials). The lens looked like someone opened it before me, because they had a fingerprint and some dust. I cleaned the lens and now looks great. They have some scratches but looks on great conditions.
I thought that the lens have some haze but when I cleaned it all came off, I hope that I didn't nothing wrong and broke the lens, but they say that practice makes perfect so now I know how to open an 50mm.
(If my english is pretty bad I apologise for that, not my first language)

AgX · Feb 4, 2020

Well done!

First, that lens is not one of the most expensive, second you hardly actually broke something and third you in even realizing that someone was at work there before likely are even more expert than the guy before...

jtk · Feb 4, 2020

Paperweight.

AgX · Feb 4, 2020

Moreover, you went for the FD-mount system. Lenses for that mount I find at highest share amongst manual focus lenses locally, and for littly money. I guess the same for your part of the world.
Thus enjoy experimenting with a variety of lenses to come.

Canon 50mm 1.4 with haze

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