Jump to content

Recommended Posts

Advertisement (gone after registration)

I've recently acquired a very cheap 35mm Summicron v4 M in very good shape. However, the front and back elements are filled with dust (or fungus). The edges don't have any obvious fungus or anything. The are only specs here and there, but mostly in the center of the elements.

 

What do you guys think? Is it dust or fungus?

 

Here are some pictures:

 

/applications/core/interface/imageproxy/imageproxy.php?img=https://image.ibb.co/mWgTto/02.jpg&key=dfa3577007ffc0f89917cf31bdb3e39330b67bfb31a2363fd728084b324bf0ed">

/applications/core/interface/imageproxy/imageproxy.php?img=https://image.ibb.co/kpqMDo/03.jpg&key=0af36ed154eb04363034ff1865ff57ec6c18e4885d36a42494ed70a9381bd94d">

 

Share this post


Link to post
Share on other sites

Seems like quite a few specks. Even if it was dust and not fungus, will you get it cleaned? If so, the action to send it for servicing doesnt change.

Share this post


Link to post
Share on other sites

Shine a UV light thru it...many fungi will show up in light shades while dust will be black spots.

Share this post


Link to post
Share on other sites

Could be both, in the centre I see bigger circles which indicates to fungus rather than just dust spots, or is that reflection?

Share this post


Link to post
Share on other sites

Advertisement (gone after registration)

I would guess that it's dust because of the very even spread, fungus tends to start in patches.

Share this post


Link to post
Share on other sites

Looks like dust to me, but the lens looks a bit hazy too. Get the window cleaners (AKA DAG/Krauter) in. 

Share this post


Link to post
Share on other sites

Looks like dust to me, but the lens looks a bit hazy too. Get the window cleaners (AKA DAG/Krauter) in. 

My phone's camera isn't very good sadly...

 

The lens is actually very clear! Surprisingly, giving what I paid for it!

 

I would guess that it's dust because of the very even spread, fungus tends to start in patches.

The centers have more dust than any other area. Maybe it collected dust as it was standing straight on a shelf? Other than that, it's pretty even as you say.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue., Read more about our Privacy Policy