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Ambient Light

In my last post I promised to upload some images about the controller and the setup. I took the images today morning with a point and shoot camera and left from home. I thought I have every kind of USB cable here in my office. I was wrong. :) Next time. BTW Does anyone knows why the hell there is a new type of USB connector on each device I buy? It might be some conspiracy of the cable manufacturers.

Anyway, yesterday I had a new shooting session with a different lighting setup. As I planned, this time I didn’t shoot in a dark room. Basically I switched on the lights in the room. I decreased the power of the flash, which also means that I increased the speed. I also used a smaller aperture. It was 13 or 11. Unfortunately even with the room lights on there was not enough light. I didn’t want to compromise in the speed and or the aperture, so I increased the ISO speed first to 200 and later to 400. This way I had good exposure, but as you might guess I introduced quite significant thermal noise to the picture. I use a quite old camera (Canon D60) and I always get some noise if I use ISO 400 sensitivity. Probably newer cameras are better, but I have to live with this. Here are some samples from this shooting:

CRW_0043 CRW_0054

(Click on the image)

As you can see the quality is not much better with this setup. The focus is better, but the same time I lost some detail. I guess it is because of the ambient light and/or because of the noise reduction in the post processing of the images. I have to figure out some other way of lighting. Any ideas?

Posted in Photography, microcontroller.


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