I picked up a small cicada this morning. I'm still flat out, but with live material, you need to deal with it quickly and let it go again.
I decided to try something I have been toying with for a while, to compare shots taken with the el cheapo microscope and the macro setting on my Canon Powershot G12, a good all-purpose field tool.
(I also own a G11 that has just come back from the repairs that field equipment needs, and a G2 that is more or less pensioned-off. I have the fittings to attach macro lenses and telephoto lenses (and also a polarising filter, but this is just with the camera itself.)
The top shot shows it sitting in a Petri dish under the microscope, using x10 magnification. If you refer to my recent blog on scale and magnification, that means this picture covers an area about 17mm x 13mm.
Not that hot, is it?
The next shot is a crop from a x60 shot of the left eye. As I said, I'm busy, so work out the scale for yourself, sorry. I really am busy.
The eye is more satisfactory, but I decided I could clean it up a bit, using Corel Photopaint to adjust the brightness, contrast and intensity.
I'm not especially fond of that package, but I inherited an earlier version to teach, years ago, and got used to it.
Anyhow, you be the judge!
And now for four different stops on the camera from 0 to +1, using the macro lens, zoomed out a bit. These are cropped, but that's it. Once again, you be the judge!
These are large-format and high-res. You may wish to click on them.
Well, I know what I would choose, unless I wanted eye structures. I think, though, that next weekend, I will get out the proper microscopes and try again, with whatever I can catch in the garden.
The writing diary of a well-mellowed science writer who cares about the public understanding of science and knows the ropes. This blog bounces between my curiosity, the daily realities of professional writing, the joy of pursuing nature, and my recycling of ideas that won't be in some book or other as far as I can see, but still needed sharing. I welcome comments and suggestions! Spam will be blocked and reported. For my books, see http://members.ozemail.com.au/~macinnis/writing/index.htm
Search This Blog
Subscribe to:
Post Comments (Atom)
This comment has been removed by a blog administrator.
ReplyDelete