Self-Closing lens cap for 18-40mm?

[CH_CH]

Hello folks!
In MFT, the small 12-32 has an accessory that is a lens cap that opens once you turn the zoom in order to "activate" the lens.
Do we have anything similar for the 18-40?
I would like to have it so the lens is better protected in pockets and bags.

 

[Jonathan-Mac]

Not to my knowledge. Unless the lens is specifically designed for it then there is no way for the cap to detect if the lens is "activated" or not.

 

[RuleOfThirds]

I think @CH_CH means a 3rd party lens cap that pushes automagically through a lens cap with "doors" like window shutters. So a little spring to keep them closed and if you extent the lens it they will be pushed away. I don't know if something like that exists.

 

[CH_CH]

I think @CH_CH means a 3rd party lens cap that pushes automagically through a lens cap with "doors" like window shutters. So a little spring to keep them closed and if you extent the lens it they will be pushed away. I don't know if something like that exists.

Yes, exactly.
I went up to compare the lenses and I have little hope. In the 18-40, the complete front moves when turning the lens, in the 12-32 it is only the inside part, which leaves the option of a simple mechanism to open-release the iris. I cannot imagine how that would work in the 18-40. Ahhh shame.