Technical: Canon EOS 7D, 30 sec, manual, f16 ISO 400, 60mm focal length, no flash
Technical: Canon EOS 7D, 30 sec, manual, f18 ISO 400, 60mm focal length, no flash
I am impressed. Initially, I didn’t look in the metadata for exposure information and David hadn’t told me. A quick email and he responded that this was an experiment in low incandescent light.
His long exposures test the limits of the camera sensor. Ordinarily with film, long exposures will result in image degradation and color shift. Digital sensors are also subject to changes when taken beyond the ordinary parameters. In both cases the terms often used are grain or noise.
For purists this is a topic of agonizing discussion. Sharpness, image color fidelity and so forth can consume you. Fear of dust may also paralyze you. It used to be dust on your film. Now it’s dust on your sensor. With few exceptions this is reasonably easy to handle. But, I digress.
Here it appears that the grain/noise is acceptable. The sensor did well on such long exposures. I don’t have the original art for comparison, but I find the digital captures David made to be very nice indeed.