Posts Tagged astrophotography

Pixels Per Planet

In a fit of doing something that will be useful to almost no one, anywhere, I have created a calculator page that will tell you how many pixels a solar system planet, or an object of your own choosing, will consume in your final DSLR image.

In order to figure this out, you tell the calculator just a little bit about your camera, your lens system, and optionally, an object of particular interest to you.

If you actually use this thing, let me know in the comments. I suspect that I may, just possibly, get one comment. From me.

Here’s the calculator page.

…and of course, if you find any bugs, let me know.

Tags: , , , , , , , , ,

Untangling FOV and "reach" for Canon Camera Bodies

A lot of people seem to be quite confused about the idea of camera “reach.” This idea relates to how much variance in magnification you actually get between different camera bodies. I thought I’d take a few minutes to clear this up once and for all. I assure you the following information explains the issue correctly. Once you’ve read and understood this post, you’ll have a perfect understanding of reach.

Read the rest of this entry »

Tags: , , , , , , , , , , , , , , , , , , , , ,

A wish list based on Canon's 40D camera

Canon EOS 40D w/Canon EF 100 f2.8 Macro USM
I shoot a lot of photographs. My preferred tool is the Canon EOS 40D, for quite a few reasons. It’s the most sophisticated camera Canon has released with an APS-C size sensor, for one thing; for another, it is just loaded with features I have found to be useful. And of course it can take terrific pictures. But, like anything, I think it could use some work. So follow the jump for my thoughts on where the camera line could go for a putative “50D” or later model.

Read the rest of this entry »

Tags: , , , , , , , , , , , , , , , , , , , ,