5 replies to this topic

[alden]

I have two Nikon DSLRs, a D7100 and a D610. The first is a DX format, the second an FX format. Today I got a very nice used 28mm AF lens for the FX camera.

 

I took two photos, one with the DX format camera 18mm, and one with the FX format camera 28mm. I used the same settings and stood in the same spot with both.

 

Net result: both images look nearly identical. So, my question is, are these two lenses giving me the exact same angle of view? I'm not a tech guy, but they look the same to me.

 

Thanks Peter! (hahaha)

[PebblzNnutz]

The reason why they nearly look identical is because the 18mm lens on the DX camera will have the same field of view as a 27mm lens on an FX body. 18mm X 1.5 DX crop factor = 27mm. 

[alden]

Field of view- yes! That is the term I was reaching for. Thank you.

[PebblzNnutz]

I think both terms pretty much mean the same thing actually. I've mostly seen FOV being used here and there online so that's the term that I use too. You're welcome.

[Merco_61]

The term field of view usually means the angle covered along the long side of the sensor, angle of view is the diagonal of the coverage. FOV is a compositional property, AOV is a property of the lens and sensor combination.

[PebblzNnutz]

Thanks for explanation, Merco_61.