"Image Size"
Apr 17, 2019 14:14:46 #
Robert Bailey wrote:
Oops- you're right, it is 16 MP, not 18 MP.
One of the hazards of late night posting!
One of the hazards of late night posting!
I hate to break it too you but a DX image is shorter by 1.5 in both height and width. So 24/1.5/1.5 = 10.666
Apr 17, 2019 14:46:57 #
Robert Bailey
Loc: Canada
Instead of being 36 x 24 mm (FX)
the DX image size is 24 x 16 mm.
In overall AREA it is 1/3 smaller.
Instead of 24 megapixels it becomes 1/3 smaller, i.e. 16 MP.
the DX image size is 24 x 16 mm.
In overall AREA it is 1/3 smaller.
Instead of 24 megapixels it becomes 1/3 smaller, i.e. 16 MP.
Apr 17, 2019 19:17:15 #
Robert Bailey wrote:
Instead of being 36 x 24 mm (FX)
the DX image size is 24 x 16 mm.
In overall AREA it is 1/3 smaller.
Instead of 24 megapixels it becomes 1/3 smaller, i.e. 16 MP.
the DX image size is 24 x 16 mm.
In overall AREA it is 1/3 smaller.
Instead of 24 megapixels it becomes 1/3 smaller, i.e. 16 MP.
Your math is off. You didn't read the post directly above yours.
FX area = 36 X 24 = 864mm²
DX area = 24 X 16 = 384mm²
384/864 = 0.4444 or less than 1/2.
24MP X 0.4444 = 10.666 MP
Apr 17, 2019 22:18:57 #
Robert Bailey
Loc: Canada
PHRubin-
So it is.
This illustrates the point that it is much better to use a "DX" lens on a "DX" camera
not on an "FX" camera.
Because I flew to Florida this year instead of driving I reduced my photography
equipment by 1/3 and left my D7100 at home,
but did take my D750 and my "full spectrum" D3400.
Next time, if I fly I'll take all 3 bodies and leave some other stuff at home!
So it is.
This illustrates the point that it is much better to use a "DX" lens on a "DX" camera
not on an "FX" camera.
Because I flew to Florida this year instead of driving I reduced my photography
equipment by 1/3 and left my D7100 at home,
but did take my D750 and my "full spectrum" D3400.
Next time, if I fly I'll take all 3 bodies and leave some other stuff at home!
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