Lens separation repair

I bought this lens cause it seems interesting, a big leaf shaped spot in the lens front.

Remember Me? Page 1 of 3 1 2 3 Last Jump to page: Results 1 to 10 of Thread: Any tips on how to repair lenses with Balsam Separation? Any tips on how to repair lenses with Balsam Separation? Hi all, So I bought two lenses suffering from Balsam Separation on the cheap that I would like to try and fix.

Lens separation repair

Hello, my friends and readers! It is getting really cold these days and I am getting lazier to do even the most basic of tasks and prefer to just hide under the thick blanket. I am sure that some of you guys have seen this and wonder what this is and how do these affect the lens and the images it captures. Age, temperature, humidity, contamination, atmospheric pressure, hygiene, stress, poor quality control and other factors will all contribute to the deterioration of our lenses. Some of them look serious but do not actually do anything much while some of them are difficult to spot yet they will affect the resulting image when shot with just the right conditions. I myself have seen plenty of these since I frequent the camera shops here almost everyday and even with that, some things still get past my eye. I wrote a lengthy post regarding fungus on lenses and now, I will begin talking about the lesser known problem of cement separation. This topic is kind of difficult to fit in a single post so I will write it in separate parts depending on my mood. What is cement separation? Lots lenses have elements that are cemented together to form a single unit.

This picture shows me at the start of the process.

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Remember Me? Page 1 of 3 1 2 3 Last Jump to page: Results 1 to 10 of Thread: Any tips on how to repair lenses with Balsam Separation? Any tips on how to repair lenses with Balsam Separation? Hi all, So I bought two lenses suffering from Balsam Separation on the cheap that I would like to try and fix. The inner-rear elements that had been cemented together with Balsam that has since separated and has created somewhat of a foggy haze inside that would absolutely affect shooting. As far as I have researched, here are the general steps that were recommended to take when repairing a lens with this type of damage. Unscrew and remove the problematic balsam-separated lens element s.

Lens separation repair

Some lenses in lens systems like photo lenses are glued together to one group. The reason for this is to minimize reflection on lens air surfaces. A larger refraction index differenc results in more reflection. When anti reflex coating was not avialable lens designer started to have lenses glued together to minimize the reflections - and this minimize the stray light. But even with todays anti reflection coatings lenses are glued together - at non normal light incident anti reflection coatings are still far away from

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Worked sort of OK, but I'm certain that it was not "centered", the glue was not totally transparent, and I chipped the edges of one element in the process. Resources Latest reviews Search resources. I highly suggest that you read these primers before you begin for beginners : Essential tools Best practices 1 Best practices 2 Best practices 3 Ai conversion Working with Helicoids Reading these primers should lessen the chance of ruining your lens if you are a beginner. This is a labor of love and I intend to keep it that way for as long as I can. From this picture you can actually see 3 problems in this element:. Posts: Mirrorless Discussion Forums. After anywhere from a few minutes to a few hours, remove lens element from boiling water and let it cool down a little bit for handling. I brought it over to Advance Camera had Paul examine the lens and told me it is adhesive separation, however I should not ever have a problem with it showing up in my photographs. Originally Posted by Tin Can. I have done this with a LF lens, just popped it on the domestic oven at C for a couple of hours, turned the oven off ant let it cool overnight worked a treat.

I overhaul every Zeiss lens. If your lens is not listed on this page and you want to know if it can be overhauled here and the cost please use this email link to contact me:. If you have a lens that needs an overhaul or to be repaired and you want to know the price and turn around time please use this email link to send me an email about it and I will reply promptly.

Go inside the house in a room with only artifical light with no or not much UV radiation - I worked under energy saving lamps, and had no problem with the glue. Clean the mating surfaces fastidiously and blow them clean just before assembly. Share More sharing options Install the app. Re-camenting is difficult and you don't have the appropriate instrumentation you will spent a lot of time making a decentered lens. If it is then you may want to do a complete strip of the black paint but make sure that that lens unit is a single element and not a doublet. Last edited: Feb 24, I have a large Ektar that needs work and I may have to do it myself, but I hope no. It was for a 35mm Summicron Lens.. Got rid of the ghost image in the lens.