Is this Fungus or dirt?

Newfie · Joined: 04 Mar 2014 Posts: 242 Location: Austin, Texas

I just got this Accura Supertel 135mm Preset and it is in beautiful shape, except the real element. I don't know if it is dirt or fungus
and is it easy to take apart to clean the rear element.

Thanks in advance

Regards,
Gavin

luisalegria · Expire: 2018-01-18

dirt, maybe a bit of fungus, cant tell, the picture is too small.
Yes it should be very easy to clean.

Newfie · Joined: 04 Mar 2014 Posts: 242 Location: Austin, Texas

Thanks Luis as usual, you are great.

How do I get to that rear element and what do I use to clean it. I can remove the Tmount easy but from there ?

Here is a pic I just took, looks OK to me. Most of the pics I took all looked soft even a f8.

Thanks again

Regards

Gavin

RSalles · Posted: Fri Apr 18, 2014 12:11 am Post subject:

Yes, Argentina, North of Canada and Alaska seems a bit soft to my eyes.

I decided to contribute also with a very important information (where I actually am) and a small reminiscence of my early days as a software developer:

Renato

luisalegria · Expire: 2018-01-18

IIRC, the rear element can be removed with a lens spanner using slots in a retaining ring.
We may not be discussing the same version of this lens though.
Alternately, have a look whether the rear cell entirely can be unscrewed.

Dirt, haze and fungus usually is in these places -

- On the back side of the rear element.
- On the surface facing the aperture blades

Newfie · Joined: 04 Mar 2014 Posts: 242 Location: Austin, Texas

Thank you Luis, I removed the T/Mount and cleaned the element on the outside and that got rid of 99% of the dirt, lucky for me.
I thank you for your replies as each time I learn something.

Regards,

Gavin