ISO 12800
I took the camera out last night with it set to ISO 12800. Now, maybe not a lot of you understand what that means, so I’ll try and explain.
There is a trade off between “film” speed (it’s ability to respond to the light it is trying to capture) and quality. The higher the film speed (aka ISO) results in more grain, or texture, appearing in the image. With the advent of digital, we call this phenomena “noise”. It’s kind of like tuning in your TV with rabbit ears. The lower the ISO, the better the reception.
At ISO’s above around 400, most consumer cameras will pretty much render a static laden image that just looks bad. In the film days, ISO 1600 was pretty much as high as I would “push”.
I had my camera with me last night and decided to take a couple of (boring) shots to see how well ISO 12800 might look. The results remind me of the old days with Ektachrome 400 pushed to 1600…
Straight off the camera with only a crop and saved as a JPG resized for the web.

And the detail.

These were all shot at dusk.
Here’s an HDR version from a bit later…

With the current advances, and a Canon 7D in my hands, I now feel that an acceptable image in low light is more available without a tripod.





















