Lens separation repair

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Lens separation repair

I bought this lens cause it seems interesting, a big leaf shaped spot in the lens front. This lens seems to be a bit rare, I found nearly no information about it. Here one of the test images, one could see the effect of this defect in the unsharp area - for example very good in the big light spot right at the bottom: Further images with visible image decline:. I opened the lens for this repair. The leaf was inside the second element - as supposed a group of the glued lenses. And controlled wheter I could use the lens housing part to realign the two lens part after glueing. It is crucial to get the correct alignment centering for the elements. With newer lenses with UV cured glue instead Canada Balm complete lens group delamination is harder to get. With high temperature I startet lens separation in a test lens, but not as much that I could open the lens group. Now the completely separated lens element: In this case the glued lens surfaces are to plane surfaces, I cleaned the Canada Balm away with isopropanol.

The Latest. But the lens is still horribly bad.

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.

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

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. Please send me all the information you have about the lens and describe the problem that causes you to believe the lens needs an overhaul or repair. In the case of most overhauls a firm price can be provided. Grease is made of oil and other ingredients that cause the oil to form a solid so that it will stay where it is applied. Over time the grease begins to degrade and it will release this oil.

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But anyway, you asked not about my thought but for someone that may fix it. Sign in here. Sorry, I am not very knowledgeable with this. I couldn't find any problem visually on lens or photographs. Afselius Mar 9, This post has a lot of useful information here and there and it will be beneficial for you to read this. Check Shutter Count. One can press the cleaned surfaces together, and could see the interference pattern:. You must log in or register to reply here. Lens separation. I have a large Ektar that needs work and I may have to do it myself, but I hope no. So most repairs at that level on a Summar are economically silly. You should upgrade or use an alternative browser. Many thanks! Posted July 12,

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There are several things that mimic separation. Website Built with WordPress. Would it be rude to ask why you think the lens has separation? They range from nail polish to some sort of clear glue, I was told that clear epoxy is also a very alternative but my experience with it during my scale modelling days is that they turn yellow over time. Finally the lens needs to be reassembled. Mark a line along the side of the balsam-separated lens elements so that you know how to assemble it back together , and put the lens elements in double boiler lined with microfiber cloth, and put in a good amount of room temperature water. Sorry, I am not very knowledgeable with this. This just shows the beginning of the problem, worse cases look very different from this and will show up like some flower or snowflake patter, rainbow-coloured streaks in the lens, milky film on the element like this one , numerous small spots and bubbles in between the elements and so forth. Replies: 4 Last Post: Oct, A slip would scratch your lens element and ruin your day. Acere Mar 9, 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. It can be seen as a greyish line beside 1.