A DIY Method to Repair Free Rubber Rings on Digicam Lenses


After buying Takumar 55mm f/1.8 lens years in the past, I began constructing my assortment of classic lenses, and since I don’t like spending some huge cash on them, I grew to become a frequent customer of thrift shops, flea markets, and on-line public sale websites.

The issues I’m bumping into are sometimes in numerous states of decay, so I’m additionally studying how you can restore and repair lenses when there’s restricted entry to spare components or they’re costlier than the lens itself. This text is a results of one such restore (beauty on this case).

I only recently bought the dirt-cheap Cosinon 50mm f/1.7 lens (proven above). The lens works flawlessly, however the rubber ring was free after I bought it.

I believe a variety of you already know the above sight all too nicely as a result of it’s an issue that actually each lens with the sort of ring meets in the end: with time, the rubber stretches, will get free, and generally turns gray-white as a consequence of micro-cracks and grime. Typically it loses its energy and splits in two or just falls off.

There are tutorials on the Net about fixing the stretched rubber rings, which you could put into two teams:

1. Strive making use of warmth: put the ring in boiling water or use a warmth gun/hairdryer. The warmth ought to make the rubber shrink a bit (tried it, didn’t work).

2. Reduce it and use some glue. (I believed I’d move on this as a result of possibly there’s some methodology of refreshing the rubber that I merely am unaware of).

After my makes an attempt at boiling the rubber failed, I believed that it’s value attempting and making a brand new ring. I do know I should buy one thing comparable (silicon rubber, geared cine ring, adjustable one, and many others.) however I’m fairly impatient and in addition the concept of paying double the value of the lens for an element that will or could not match correctly is unnecessary to me. So, I regarded round the home and located a chunk of leather-based from an previous shoe. Turned out a bit thicker than the rubber is nevertheless it’s not a problem for me.

A Walkthrough

First, minimize a strip that’s the identical width because the rubber:

Subsequent, rigorously minimize it to size. If you would like it to take a seat as tight on the lens as potential, minimize it 1 mm shorter. The leather-based can stretch a bit, so that you’ll be capable to put it on the lens with none drawback.

Both glue it like this (I do not know what sort of glue to make use of, although) or get a needle and powerful thread and stitch it.

It’s finest to make holes first (takes a little bit of pressure to push the needle by) and put the thread by them later. The kind of the seam and the colour of the thread is as much as you.

If in case you have the abilities or know somebody who works with leather-based, you may simply obtain a greater end result. For instance, you may make the stitches flat, stamp a sample for higher grip, spherical the sides, make some embroidery (e.g. your title), and many others.

There’s a method of constructing a seamless, steady ring, however the course of is time-consuming, requires a type of some sort, and your fingers could harm a bit (do a seek for “moist molding leather-based”).

Issues to Think about

  • I don’t learn about its sturdiness. From my earlier experiences with leather-based, this can most likely last more than the lens itself however I might be unsuitable.
  • It wants conditioning infrequently or it’s going to begin cracking.
  • Leather-based doesn’t like being moist. Lenses neither, so let’s skip this level.
  • Don’t use your normal, cotton thread. It is going to be destroyed by chemical substances which might be current within the leather-based. Use nylon or polyester (or kevlar if you happen to want one thing bulletproof).
  • You’re not restricted to leather-based. I simply thought of nylon cable braid, skinny paracord, and even copper, stainless, or brass wire.

I hope this text was useful to a few of you who’re additionally coping with free rubber rings on lenses!

In regards to the creator: Marek B. is an novice photographer with a variety of unusual concepts and a love for classic lenses. The opinions expressed on this article are solely these of the creator. This text was additionally revealed right here.


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