Posted in Digital Cameras, Memory Cards, Sensors on June 12th, 2006
If you’re taking JPG images in a high-quality compression, how many will you be able to squeeze onto your memory card? That’s a question often asked.
Here’s rough guide to what you can expect from a variety of memory card capacities:
1 MP (megapixel)
32MB card: 91
64MB: 182
128MB: 356
256MB: 731
512MB: 1420
3 MP
32MB: 26
64MB: 53
128MB: 106
256MB: 213
512MB: 421
5 MP
32MB: 12
64MB: 25
128MB: 51
256MB: 102
512MB: 204
These numbers may vary according to how your camera processes images, so use as a general guide only.
Posted in Digital Cameras, General, Sensors on March 9th, 2006
You may think that cleaning your digital camera sensor is a job for a brain surgeon. Actually it isn’t, though it does require some knowledge and not a little skill.
Christopher Breen of MacWorld has written a great How To piece on this subject: ‘When you switch lenses on your SLR, it’s possible for the camera to collect small specks of dust on the sensor—the light-sensitive silicon chip that samples incoming light. Even without changing lenses, you can collect dust when shooting in dry, dusty environments. These bits of dust manifest themselves as tiny (and sometimes, not-so-tiny) spots on your pictures.’
Read Christopher Breen’s How To article on cleaning digital camera sensors.
