Applies to any non-DX lens on a DX format camera, Film or Full Frame DSLR IIRC
Any Full Frame DSLR/35MM Film lenses with DX sensors are a bit zoomed in if you will as your not viewing the full picture of the lens, as the field of view is bigger then the sensor can see on a DX, and vice versa DX lenses on a Full frame camera will result in some of the frame being cut off
So the 35MM DX lens while does fit the sensor still gives the effect of a ~52MM equivilant on a Full Frame/35MM Film and the 50MM lens I was using would be around 70 or so
That was something I was completely unaware of until I read into it, because I was just going to buy one of the FX 50mm 1.4’s but realize it would be a bit more zoomed then I’d like for low light indoor close up shots like i was doing.
Its actually not a big deal so long as your mindful of that, there are a couple FX lenses I’m going to pick up that will work just fine, and be there for me when and if I upgrade to a FX body