Mike can I ask how much this service cost you and/or the name of the company?

Is the Tokina an autofocus lens. ?

Update

Just watched his video about Pentax Marketing, He does make some fair points.

He has fallen out with Pentax, because as he stated in a previous video , he had failed to get the numbers for his channel, and the problem was Pentax
And was somehow convinced , that he is entitled to support from Pentax. Whatever that may be.
He now has a deliberate anti Pentax bias .As such his videos are no longer worth watching.
He has lost another subscriber.

Joy....Success. Unsure how I inserted the adapter , but I do not really care , just now , It works, happy days and thanks you to everyone who posted.

Martin , I have removed the lens from the adapter.
I have looked at a photo of an original adapter on WEX website and mine looks identical. With the adapter attached the pin on my lens is visible.
Now that the adapter is removed I attempted to install the adapter on my K7, but it did not want to attach. After the dilemma with the lens , I am reluctant to attach the adapter to , one of my modern Pentax bodies.
I will search for your review

Thanks to everyone who responded , Somehow managed to unscrew the lens from the adapter .

But the adapter seems too large , for the camera mount.

This is supposed to be an authentic adapter , anyone have any suggestions ?

Cheers., I should have read the instructions first and attached the adapter to my camera.I have attempted to attach the lens to one of my cameras, but strangely it won't attach.I have attempted the towel method , but may leave it till tomorrow , after some Weetabix , for energy.

Ok , I have already looked at utube videos for an answer to this , and I have already attempted some strategic poking the lens with a pen and of course brut force but to no avail.
I have a genuine m42 to K mount adapter, which I attached to a M42 55mm f2 lens.
I have not attached the lens with adapter to the camera yet, but when I when I attempted to remove the adapter, it would only move marginally, but I cannot unscrew the adapter from the lens .
As usual , I am turning to forum members in search of a solution.
Thank you in advance.

Regards

At todays rates E2100 is £1876

Interestingly , while we lack a third party alternative, CaNikon have the Sigma 85mm1.4 current price is £899 .

In competition Pentax are offering the Pentax favourite FA77mm1.8 at £687.

Little if anything to be concerned about there, In fact superb choices.