#2. "RE: What does the 1.3x crop factor mean to my DX lens?" In response to In response to 0
Farmington Hills, US
Without the 1.3x crop factor selected, you will be seeing the same field of view as you get from your D90. If you select the 1.3x crop, you are just selecting a smaller rectangular area from the sensor. It would be the same as taking on of your D90 images and masking off the outer portions of the image so you see rectangular area only 77% (1/1.3) of the original length and width centered within the original image.
Not that the field of view is equivalent of a 2x crop from a FX image.
Gary in SE Michigan, USA. Co-organizer of the Southern Michigan Chapter Nikonians membership - My most important photographic investment, after the camera. D4, D800e, D300, D90, F6, FM3a (black), FM2n (chrome) YashicaMat 124, Graflex Speed Graphic 4x5 My Nikonians Gallery & Our Chapter Gallery