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#1
Posted 06 October 2017 - 10:18 PM
Thanks for any help/input/education.
#2
Posted 08 October 2017 - 05:13 PM
Your DX lens gets the crop factor also, giving it the same angle of view as a 27-450 mm lens. Unfortunately, it doesn't matter whether you use an FX or DX lens, on a DX format camera the crop factor applies to both.
Hopefully, it's not too late to return the 28-300.
#4
Posted 09 October 2017 - 06:52 PM
So there is no difference between a DX lens and a FX lens when used on a DX body? That is what I am seeing but that certainly is not what everyone says.
No. No difference on a DX camera. Focal lengths are always the same, regardless of the size of sensor (or film in olden days) behind it. The only difference the sensor size makes is how much of the image is recorded.
Here is an example of the same focal length and the different parts that would be captured. This is example is using a FX capable lens....
The difference is with a DX specific lens, it actually also produces a smaller image. It does this to reduce costs. So what would happen with a DX lens, on an FX camera would record a wider image than the lens is projecting onto the sensor. And this is what you would get...
This can all get really confusing, but really it makes absolutely no difference unless you are swapping between a FX and a DX camera regularly. If all you use is a DX camera then you will never know any difference.
#5
Posted 09 October 2017 - 09:00 PM
#6
Posted 09 October 2017 - 09:29 PM
On your DX body the DX lens gives the field of view of a 27-450mm lens. Your FX lens will give the field of view of a 42-450 lens. The smaller DX sensor doesn't change the focal length of the lens, but due to it's smaller size gives the smaller field of view. You can look at it as the DX sensor cropping the center out of an FX sensor's image.
Hope that helps.
- Jerry_ likes this