technical

What a DSLR’s CMOS Sensor Looks Like Under a Microscope

Jack over at the astrophotography blog The Landingfield has published a series of photographs showing what a digital camera's CMOS sensor looks like when viewed through a microscope. The sensor (seen above) was taken from a broken Nikon D2H -- a DSLR from back in the early 2000s.

Wave this Programmable “Light Saber” to Light Paint Words and Images

Gavin of Sydney, Australia created an awesome 2-meter long programmable staff that makes painting giant words and images as easy as waving/walking the staff around during a long-exposure photograph. The staff, which he call the LightScythe (we would have called it the "Lightsaber"), was inspired by the Wi-Fi light painting project we shared here earlier this year.

The hardware is pretty simple. There’s a 2m programmable LED strip inside an acrylic tube, which is controlled from a small receiver and battery pack. A laptop PC with a wireless Xbee link sends the image data to the scythe at a specified time. [#]

Lower ISO Doesn’t Always Lead to Higher Quality Images

When learning about ISO, you've probably heard that the lower the number, the lower the noise and the higher the image quality, but did you know that this isn't always the case? The reason is something called the base (or native) ISO of a camera -- the ISO achieved without amplifying the data from the sensor. This is usually somewhere between ISO 100 and ISO 200.

Freeze Your Camera for Less Noise

Last Friday an anonymous poster on the photography board of 4chan sparked a discussion that rippled into the blogosphere after freezing their camera to see whether ISO performance improves at lower temperatures.