Pixel Lab

Your Camera Resolution

a)        List all of the resolutions your camera can be set to. You will usually find this under the function button if you have one and resolution is often represented by L, M, and S etc… You probably already have this information from the “Get to know your Digital camera” lab.

- 3648x2736

- 3264x2448

- 2592x1944

- 2048x1536

- 1600x1200

- 1280x480

b)       Each resolution has a weight to the image measured in Megs (M). For each resolution listed, indicate the weight of an image captured at that resolution. If your camera does not give you this information, open the image in Photoshop and check the info at the bottom right of the screen.

-          10 M 3648x2736

-         8 M 3264x2448

-          5 M 2592x1944

-          3 M 2048x1536

-          2 M 1600x1200

-          1 M 1280x480

c)        As you change the resolution on your camera, the number of images your memory card can store will also change. Indicate for each resolution, the number of images you can store on your SD memory card.

-         3648x2739  (461 Images)

-          3264x2448 (541 Images)

-          2592x1994 (767 Images)

-          2048x1536  (1128 Images)

-          1600x1200  (1682 Images)

-         1280x480  (2458 Images)

Testing Image Resolution

a)      Take a photo with your digital camera at the highest resolution (do not shoot in RAW). Remember the composition tips from the video of Steve McCurry Images. Open the photo in Photoshop and crop the image to an aspect ratio of 5x7 inches. What are the pixel dimensions, weight and resolution of the newly sized photo?

-   When I cropped my image to an aspect of 7x5 the dimensions are 5067x3800, the weight is 55.1 M and the resolution is 100 pixels/inch.

b)      Change the image size to 5x7 inches. What are the pixel dimensions, weight and resolution of the newly sized photo? Save the photo as high-resolution-Your Name.jpg

-  Once I changed the image size to 7x5 the pixel dimensions are 700x525, the weight is 1.05 M and the resolution is 100 pixels/inch.

c)      Change the resolution to 72 ppi. What are the pixel dimensions, weight and resolution of the newly sized photo? Save the photo as low-resolution-YourName.jpg

-  Once I changed the resolution to 72 ppi, the pixel dimensions are 504x378, the weight is 558.1 K and the resolution is 72 pixels/inch.

d)     Place the high and low resolution images in a folder called YourName and submit them to my drop box. I will have them printed so we can check the results next class.

EXTRA:

-        You would want to keep the resolution high when you are planning to either keep the photo or you are printing it out.

-          You would want to change the ppi if you were planning to put the photo online so it doesn’t take up that much space and the internet browser/site would allow a photo that wasn’t very high in M.

-         The Image that was a higher (300) dpi has a clearer view than the one with the lower (72) dpi. The image with the 300 dpi has a much higher resolution and the image shows and over higher sense of clarity and sharpness. You can see much more of the detail in the house and the tree. The edges of the image aren't as faded and the 72 dpi image and the house number is clearer and legible in the 300 dpi photo.