DigitalDingus Reference: Imager Sizes, Pixel Sizes, and Resolution

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FOV Factor Table

January 27, 2006

Below is a table of several cameras and their diagonal measurements of the imager, for imagers as large as 36mm x 24mm. The FOV Equivalency Factor, is obtained by dividing the 35mm diagonal measurement by the digital camera's imager diagonal measurement.

Camera	Imager Size (W x H)	Horizontal²	Vertical²	Diagonal sqrt (H² + V²)	FOV Factor
All 35mm	36.0mm x 24.0mm	1296mm	576mm	43.2666mm	1x
Canon D30	22.7mm x 15.1mm	515.29mm	228.01mm	27.2635mm	1.58697x
Canon D60	22.7mm x 15.1mm	515.29mm	228.01mm	27.2635mm	1.58697x
Canon 300D/ Digital Rebel	22.7mm x 15.1mm	515.29mm	228.01mm	27.2635mm	1.58697x
Canon 10D	22.7mm x 15.1mm	515.29mm	228.01mm	27.2635mm	1.58697x
Canon 20D	22.5mm x 15.0mm	506.25mm	225mm	27.0416mm	1.60000x
Canon 1D	28.7mm x 19.1mm	823.69mm	364.81mm	34.4746mm	1.2550x
Canon 1D Mark II	28.7mm x 19.1mm	823.69mm	364.81mm	34.4746mm	1.2550x
Canon 1Ds	35.8mm x 23.8mm	1281.64mm	566.44mm	42.9893mm	1.0065x
Fuji S2 Pro	23.0mm x 15.5mm	529mm	240.25mm	27.7353mm	1.5599x
Fuji S3 Pro	23.0mm x 15.5mm	529mm	240.25mm	27.7353mm	1.5599x
Kodak DCS Pro 14n	36.0mm x 24.0mm	1296mm	576mm	43.2666mm	1x
Kodak DCS Pro SLR/c/n	36.0mm x 24.0mm	1296mm	576mm	43.2666mm	1x
Nikon D70	23.7mm x 15.6mm	561.69mm	243.36mm	28.3734mm	1.5249x
Nikon D100	23.7mm x 15.6mm	561.69mm	243.36mm	28.3734mm	1.5249x
Nikon D1	23.6mm x 15.5mm	556.96mm	240.25mm	28.2349mm	1.5324x
Nikon D1x	23.7mm x 15.6mm	561.69mm	243.36mm	28.3734	1.5249x
Nikon D1h	23.7mm x 15.6mm	561.69mm	243.36mm	28.3734mm	1.5249x
Nikon D2h	23.7mm x 15.5mm	561.69mm	240.25mm	28.3185mm	1.5279x
Nikon D200	23.6mm x 15.8mm	556.96mm	249.64mm	28.4007mm	1.5234x
Olympus E-1	17.3mm x 13.0mm	299.29mm	169mm	21.6400mm	1.9994x
Olympus E-330	17.3mm x 13.0mm	299.29mm	169mm	21.6400mm	1.9994x
Sigma SD9	20.7mm x 13.8mm	428.49mm	190.44mm	24.8783mm	1.7391x
Sigma SD10	20.7mm x 13.8mm	428.49mm	190.44mm	24.8783mm	1.7391x

DSLR-type Cameras
Camera	Imager Size (W x H)	Imager Type	Horizontal²	Vertical²	Diagonal sqrt (H² + V²)	FOV Factor
Sony 828	8.8mm x 6.6mm	2/3"	77.44mm	43.56mm	11mm	3.9333x
Sony 717	8.8mm x 6.6mm	2/3"	77.44mm	43.56mm	11mm	3.9333x
Leica Digilux 2	8.8mm x 6.6mm	2/3"	77.44mm	43.56mm	11mm	3.9333x

I added the "DSLR-Type" table in order for you to understand the differences in the FOV Factors (or Field Of View Equivalency Factor) when compared to DSLR cameras. As you can see, there's a big difference in focal length equivalency factors, and this is why camera manufacturers can make such small lenses for them, and why the cameras themselves are so compact.