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Question about resolution of still pix on Canon PowerShot SD30?
I took a photo with the Canon PowerShot SD30 (after not using it for a while, so I didn't remember much about it) and was surprised that the resolution was only 250 dpi. I was asked for a higher resolution (this would be for Internet display primarily). The manual confused me since it did not express resolution in a dpi number like 300 or 400. (I am used to such numbers used in scanning, whereas for digital cameras it seems to be different.) What's the relationship, if any, between the resolution as expressed in dpi and the image size?
The advanced manual, under "Resolution" settings, gives these choices for still images:
Large= 2592x1944 pixels
Medium 1 = 2048 x 1536
Medium 2 = 1600 x 1200
Small = 640 x 480
I had the camera set for a high-quality compression setting (Superfine--don't know if that has anything to do with it).
2 Answers
- retiredPhilLv 77 years agoFavorite Answer
All the internet needs is 96ppi. I don't know who told you that you needed 300dpi, but that is for printing. Displaying on a screen is expressed in pixels per inch, and printing is expressed in dots per inch.
Most edit programs will allow you to resize a photo for the internet, which will set it to either 70ppi or 96ppi.
- Anonymous7 years ago
Set your camera to LARGE =2592 x 1944 pixels! Superfine the highest setting is the best!
And FORGET IT!
The 250 setting is recommended for email sending. But won't make a decent print at all!
Now your response is "what if I want the picture file for email?" Then you get a program for your computer that will allow you to save (use a different name like ad "mail" to your new file name) in lower resolution like your 250 DPI.
Good Luck
Source(s): 45 yrs professional photographer
