Following my despair when I was unable to locate a lens-doctor here in Australia who could assist with de-clicking my Samyang 35mm f1.4 lens I decided to give it a go myself, which turned out to be not just very easy but also worth it all!
Before I run you through the process it is important for me to highlight that I do not recommend anyone to this unless they are fairly confident in exposing the inside of their lens – I do not take any responsibility should you stuff it up
If you are already asking yourself ‘what difference does this make’ or ‘whats the purpose of this’ then this is probably not an ‘operation’ for you.
To be successful is de-clicking your own (Samyang 35m) lens you will need:
- 1 x philips screwdriver size poo (used for optical devises – can be purchased in most hardware stores)
- Plastic gloves (you do not want big fat fingerprints on the inside of your lens elements)
- A nice and tidy work environment (dust free and preferably dry too)
- a tiny bowl or container for all the little screws and parts (you do not want to lose any of them)
So lets get’s started:
- Using the screwdriver unscrew the three screws- remembering to put them aside so they do not get lost (they are tiny!) – lift the steel mount off and gently remove the black plastic cover (this is actually the iris-ring) + the inner silver ring (more screws), which will expose something a bit more interesting.
- When moving the black ring a tiny(!) steel-ball and spring will pop out, this is where the ‘clicking’ comes from – and your lens will look similar to this:
- Now is when the difficult part starts: putting everything back together again – The true trick is to remember exactly how everything fits back together and not to have lost any of the tiny screws. Be very careful with the screwdriver as it is easy to scratch the back glass element which will be a disaster !
- When fully assembled you will (hopefully) have a fully functional lens with a smooth de-clicked iris which is perfect for video work (note it does not have any advantage when shooting stills/timelapse/etc!) You might find that the iris ring is a bit soft (I do not have this issue, but I have seen rapports online that some people find it too smooth)
Also, let me say that I would probably never do this with a dearer lens; the Samyang 35mm can be purchased 2nd hand for around $300-350 so my loss would not be that much should I end up with a broken lens barrel. I would never attempt this with an expensive Carl Zeiss lens!
If you have successfully de-clicked your lens feel free to comment with your ideas and tips, or maybe you have advise on how to make the process easier.
edit: please not that this lens does exist in a (pre-de-clicked) version, however I have not had any luck finding it any where (after 12 months)
links to companies/professionals who offer to do this service are also welcome in the comments below
Thanks for reading