![I just bought this nikon D300, the problem is that I can't (or I don't know yet) adjust de aperture (the F number), I already watched videos about this camera and they I just bought this nikon D300, the problem is that I can't (or I don't know yet) adjust de aperture (the F number), I already watched videos about this camera and they](https://external-preview.redd.it/8mnJ9O_PahM5sK28ivSNeMnMIGdGoQfGj80rkaEPAPQ.png?format=pjpg&auto=webp&s=9ab8227bbb30ad259721b6189c836c158e9a8491)
I just bought this nikon D300, the problem is that I can't (or I don't know yet) adjust de aperture (the F number), I already watched videos about this camera and they
![Amazon.com : Rokinon CV85M-N 85mm t/1.5 Aspherical Lens for Nikon with De-Clicked Aperture and Follow Focus Compatibility Fixed Lens : Camera Lenses : Electronics Amazon.com : Rokinon CV85M-N 85mm t/1.5 Aspherical Lens for Nikon with De-Clicked Aperture and Follow Focus Compatibility Fixed Lens : Camera Lenses : Electronics](https://m.media-amazon.com/images/I/81IlM2G7iCL.jpg)
Amazon.com : Rokinon CV85M-N 85mm t/1.5 Aspherical Lens for Nikon with De-Clicked Aperture and Follow Focus Compatibility Fixed Lens : Camera Lenses : Electronics
![FD 50mm f1.8 S.C. aperture won't close? I have it on f16 in the picture and it doesn't close when pressing the dof preview lever : r/AnalogCommunity FD 50mm f1.8 S.C. aperture won't close? I have it on f16 in the picture and it doesn't close when pressing the dof preview lever : r/AnalogCommunity](https://preview.redd.it/9kk1ey77q2k71.jpg?width=640&crop=smart&auto=webp&s=f797484a29b14597f2c02df22bb2bda7dc736dbf)