Tele-Macro ?

Hi, I have got a "new" piece of kit. It is a film camera era, a Sigma TELE-MACRO 2x - 1:1 lens. When this is coupled with my 50mm f1.7 lens appears to work well but the camera, a K5, won't respond. Why not? Why won't the camera work in manual? Is there some menu setting I have overlooked?

Maybe allow the use of the aperture ring in one of the camera's menus will help?

Not familiar with your new toy, so it's just a guess.

Activate the camera's abilioty to use the aperture ring and then everything will need to be set manually. It will be possible to use it, with stop down metering.

You can usefully set the green button to do the stop down preview to get the meter reading as long as lens is set to an aperture and not auto.

All on page 339 of the handbook.

I have set up the camera for using the aperture ring and have now got the lens working. But will need to do a lot more work to get the hang this.