Jamidu
New member
Does Nikon AF-S TC-14E III have DX format? I found this information on dpreview.com
AF-S TC-14E III format
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DX crop on a FF sensor is 1.5x or in other words, the resultant image is 1.5x larger. So, if you have a 100mm lens, the DX crop will "appear" to be 1.5x larger or "equivalent" to a 150mm focal length lens on a FF sensor.
A 1.4x TC will give you a 1.4x larger image on the sensor. So, if you have a 100mm lens, the focal length will be the equivalent to a 140mm lens on a FF sensor. The other thing to remember is that the effective aperture is also changed by 1.4x so that an f4 lens becomes an f5.6 lens.
There are a few other factors that affect a DX crop like extra noise and DOF changes, but for the moment the above is a quick answer to your question.
Last edited:
fcotterill
Well-known member
As I understand the difference, a TC projects a magnified image on to the sensor plane using the full area of pixels: eg 45mp in the case of Z9 or D850.
In contrast to optical magnification, DX format is a crop of the FX image projected by the lens on the sensor plane, as does a 1:1 or other crop ratio available on modern ILCs. So a DX crop records ~20mp image in the case of Z9 or D850.
In contrast to optical magnification, DX format is a crop of the FX image projected by the lens on the sensor plane, as does a 1:1 or other crop ratio available on modern ILCs. So a DX crop records ~20mp image in the case of Z9 or D850.
Yes, I should have added that a DX crop reduces the effective pixels of a FF sensor by 1.5*1.5 = 2.25x. So, a 45Mp FF sensor effectively becomes approx. a 20Mp resultant image; ie 45/2.25 = 20Mp. A 1.4x TC projects a 1.4x larger image on the sensor meaning you keep the same effective MP of the FF sensor.
Jamidu
New member
The 1.4x TCIII is just an updated version of the 1.4x TCII.
Nasos Kosmas
Member
There is probably a mistake in the screenshot:
Both these teleconverters and any other Nikon teleconverter you may see are for FX and DX format
Both these teleconverters and any other Nikon teleconverter you may see are for FX and DX format