Newbie issue Nikon D3200 and Tamron lens

[NMBPMike]

Greetings all, Sorry for the newbie question.
I have a Nikon D3200
I purchased a Tamron AF LD 70-300mm 1:4-5.6 Tele-Macro (1:3.8) Lens
Model 3720 which is about 1996

I set the dial to f22
and turn on the camera and i get the info pop-warning
to " Lock Lens aperture ring at minimum aperture {Largest F/number}
I ensure i turned the dial to 22

I rotate my dial to A to change the aperture setting, I hold down the exposure compensation button and at the same time i use the command dial and on the display it doesn't move, the
informational stays in view and i don't see the aperture changing.

I also tried it by rotating the dial to M and also P separately and I hold down the exposure compensation button and at the same time use the command dial to adjust
and still nothing changes. I also try without holding down the exposure compensation button.

Any suggestions?

Thanks
Mike

 

[cgw]

Why are you holding down the exp comp button?
Do you have the manual?

 

[RAZKY]

Greetings all, Sorry for the newbie question.
I have a Nikon D3200
I purchased a Tamron AF LD 70-300mm 1:4-5.6 Tele-Macro (1:3.8) Lens
Model 3720 which is about 1996

I set the dial to f22
and turn on the camera and i get the info pop-warning
to " Lock Lens aperture ring at minimum aperture {Largest F/number}
I ensure i turned the dial to 22

I rotate my dial to A to change the aperture setting, I hold down the exposure compensation button and at the same time i use the command dial and on the display it doesn't move, the
informational stays in view and i don't see the aperture changing.

I also tried it by rotating the dial to M and also P separately and I hold down the exposure compensation button and at the same time use the command dial to adjust
and still nothing changes. I also try without holding down the exposure compensation button.

Any suggestions?

Thanks
MikeView attachment 282643View attachment 282644

When you set the aperture ring to f/22, did you lock it? (And keep your finger off the Exposure Compensation button - that's for exposure compensation.)