Samyang (Opteka) 500mm F6.3 - Another low cost lens for AP

[Leo.G (Leo)]

I have one lens with a plastic retaining ring on the front element and it has been glued. I decided to leave it as it is, it works but has a little mould. I haven't figured out how to remove the ring without destroying the glass.

[bojan]

Originally Posted by Leo.G

I have one lens with a plastic retaining ring on the front element and it has been glued. I decided to leave it as it is, it works but has a little mould. I haven't figured out how to remove the ring without destroying the glass.

Try with isopropil or Methylated Spirit to loose the glue (usually it is shelack or similar)

[Leo.G (Leo)]

Ah, primary ingredients for French polish (shellac and methylated spirits), I'll try that, thanks!


Old time methods, I even used to have a glue pot but that stuff stank, hot glue sticks and guns are so much easier than melting down horse gelatine.