Digital Cameras
Camera Phones
Click here to Contribute Images

MobiDv H10

pathway4_mDVH10_S.jpg
Picture of Pathway

Back to MobiDv H10  

Comments:

Click here to see same scene taken at the same time by MobiDV H18.

Click here to see same scene taken by Olympus D580.

Comparison of Sharpness:
- The following zoom-ins into the pictures of H10, D580, and H18 are used to compare their sharpness with respect to each other. The location of the region of the zoom-in is highlighted by the yellow box below.

pathway4_mDVH10_zm4_loc.jpg
Location of Zoom-in Below

pathway4_mDVH10_zm4.jpg
Zoom-in into Picture by H10

pathway4_mDVH10_zm4_D580.jpg
Zoom-in into Picture by Olympus D580

pathway4_mDVH10_zm4_H18.jpg
Zoom-in into Picture by H18

Comparing the zoom-ins above, the H18 picture is blurrer than the H10 and the D580. The D580 is the sharpest among the 3 cameras.

Sharpness Comparison between H10 and D580:

Considering the vertical edge between the black and white reigon on the right of the zoom-in, the number of pixels required for the transition from 1 region to the other are shown in the follwing table.

Camera
Model		 Edge transition between
White and Black Color Regions
H10 3 Pixels
D580 2 Pixels
H18 4 Pixels

Ratio of edge transition in 1 direction
= edge transition in H10 / edge transition in D580 = 3 / 2 = 1.5

Ratio of effective resolution 
= effective resolution for H10 / effective resolution for D580 =  2 MPixel / 4 MPixel = 0.5

Sharpness Discount Factor for H10 compared with D580
= ratio of effective resolution / ratio of edge transition in x and y directions = 0.5 / ( 1.5 x 1.5 ) = 0.222

Sharp Pixel Count
= 4 MPixel * 0.222 =   888 000 Pixels

Therefore, the count of pixels that contributes to the sharpness of the image by H10 (2 MPixel image sensor) is 888 000. 

Loss of Details at Far End of Pathway:
- The conparisons between pictures taken by H10 and H18 of the details at the far end of the pathway are shown below.

pathway4_mDVH10_zm1_loc.jpg
Location of Zoom-in Below

pathway4_mDVH10_zm1.jpg
Zoom-in into H10 Picture

pathway4_mDVH10_zm1_H18.jpg
Zoom-in into H18 Picture

The zoom-in by H18 has more details than that by H10. The H10 zoom-in does not have the frames of the doors.

Trees are too Dark:
- The rows of bushes on the right side of the picture looks too dark compared to the actual scene. This is shown in the zoom-in below.

pathway4_mDVH10_zm2.jpg
Zoom-in showing the Bushes on the Left are too Dark

Camera Settings used:
Both pictures taken by H10 and H18 uses the same camera settings:
Aperture Size = F / 3.5, Shutter Speed = 1 / 1254 sec, ISO = 100

Both cameras were set to auto mode when taking the picture of this scene.

Trees Look Blurred:
- The trees on the right of the picture looks blurred and more details can be brought out there. The zoom-in below shows how the trees look like.

pathway4_mDVH10_zm3_loc.jpg
Location of Zoom-in Below

pathway4_mDVH10_zm3.jpg
Zoom-in into H10 Picture shows Trees look Blurred

Back to MobiDv H10                                                                                                                               Back to Top