Lens separation repair

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?

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.

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. These are called doublets or triplets depending on how many individual lenses are involved. This is necessary because some designs are difficult, costly or impossible to manufacture as 1 single glass element so a solution has to be made.

It was for a 35mm Summicron Lens.

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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.

Lens separation repair

Balsam separation is used to describe lens elements that have started to delaminate. The description was originally specific to Canada balsam. However, also applies to modern lenses that use various epoxies. What balsam separation looks like will depend on the lens coatings. It most commonly looks like a white or reflected rainbow halo around a group of elements in the lens. White colors will appear on lenses that have no or few coatings. The delamination does not always occur around the outside of the elements. You will be able to see the separation more easily than a small amount of haze or fungus. Canada balsam is turpentine made from balsam fir tree resin.

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Theis assembly I took to the sun. Last Update: Follow me on Twitter My Tweets. Don't download my content! We may receive a commission for purchases made through these links. Perhaps, in the none too distant future, we will be able to have appropriate repairs made in Russia again, or The Ukraine. Page 1 of 2. The idea had left my mind. Page 1 of 3 1 2 3 Last Jump to page:. Get seller access!

Hello, my friends and readers!

Pentax Stores Pentax Retailer Map. Format RF. See the dimpled edges? Originally posted by joeji. Photos: Gallery. Replies: 4 Last Post: Oct, Many thanks! The hardest part is getting them together without trapping any air bubbles or dust particles. Unscrew and remove the problematic balsam-separated lens element s. This is only something that I would attempt on a worthy lens.