Sunday, 16 September 2007
Dear readers,
Before I moved to Italy, I prepared a series of posts on photography basics to cover me while I was unable to write, but it seems that I underestimated this time and this is why this blog has been silent for the last three weeks.
I wasn’t even able to mantain the Bee Side of Zo’C which is a personal blog and much easier to fill with trip pictures and stories.
But, by no means this blog is abandoned, I have finally reached a point of comfort here and I am back on the track of writing, while I am still having a hard time to follow the blogs I usually do (If you own one of the blogs I read, I promess soon I’ll be active again).
Sooner that you can imagine, new Zo’C posts will be published.
Cheers,
Guilherme
This is the 6th and final part of a tutorial about photography basics. So far we’ve seen
Finally, we have seen all the necessary elements to build a camera. The black box, the lens, and the shutter.
Traditionally, there were two kinds of film cameras. Cameras with Direct Viewfinder and SLR (Sinlge Lens Reflex, or just Reflex) cameras.
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This is the 5th part of a six-part tutorial about photography basics. So far we’ve seen
By now, we have seen that, by changing the ISO value we can change the amount of light needed for a picture, in exchange for quality. We have also seen that, by changing the aperture value, we can change the amount of light actually entering the camera, in exchange for bigger and smaller depth of field.
But increasing the Aperture value is not the only way to increase the amount of light in a picture.
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The ISO value: Films and CCD sensors
This is the 4th part of a six-part tutorial about photography basics. So far we’ve seen
We have seen how it is possible to project an image on a surface, but we haven’t seen so far how to transform the projected image, into a photography that can be seen further in time.
In this post, we will see basics of how films and digital sensors work and how to use ISO value on your own advantage.
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Wednesday, 15 August 2007
This is the 3rd part of a six-part tutorial about photography basics. So far we’ve seen
We have seen in the previous post, that by isolating rays of light through a tiny hole, we can separate and project images of objects. The smaller the whole, the sharper and darker the image, and vice-versa.
It would be really great if we could find a way to widen the aperture of the camera and correct the rays of light and project all diverging rays of light the same point, isn’t it? That would provide a sharp image that is also very illuminated.
In this post, I’ll show you the lens basics and how to use focus and aperture to your advantage in pictures.
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This is the 2nd part of a six-part tutorial about photography basics. So far we’ve seen
In the previous post on this series, we have seen that light incident on a rough object is reflected, also called difused, in many directions and this create so many unordered images that the eye mix them all up and we can’t distinguish them, like in a mirror reflection.
In this post we will see how to isolate and project images to understand the basics of a photographic camera. Principles of all cameras even the most modern digital SLRS and even webcams.
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This is the 1st part of a six-part tutorial about photography basics.
Visual properties of objects
Every material, has some visual properties like color, brightness and opacity. Visual properties are directly related to what happen to incident rays of light.
Say you are on a room with white walls, illuminated by an light bulb. We see the walls because the light that is emitted by the bulb is made of light rays that, as they hit the walls, are reflected. The ability of reflecting the rays is a property of these walls.
But the wall is a rough surface, even a wall that is smooth to the touch has enough ups and downs to be rough to light dimensions. So, any point of it will reflect light like if there was a mirror, tangent to the wall in the very point of the incident ray.
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In 2001 I was hired by a government sponsored project to teach a photography course with a very peculiar approach. I had to teach High School teachers so they could use photography as a tool in the regular classes like Physics, Chemistry (it wasn’t digital photography back then), History, Art, and so on.
As a part of the course I wrote a tutorial that was quite handy for some people over the years and now, in a time when film photography is almost extinct I thought it was time to refresh the text and make a handy manual on photography in six parts.
Every three days, on August 9th, 12th, 15th, 18th, 21th and 24th I will publish each one of the six parts of the manual, see the list below.
As I said in my previous post, Anna and I are moving to Italy and I’ll have plenty to write and pictures to show that won’t fit here. So, by popular request, The Bee Side of Zo’C blog is born.
The Bee Side of Blog is just that, a B-side. I make no promises except that I’ll keep my writing style and the usual felling but the themes may vary. It is a blog in which the only off-topic subjects would be the ones that perfectly fit this one (the A side, if you wish).
You are welcome to join me in new themes and much more fun that is not web/software/photography/design related.
The title of the last posts of the Bee Side blog will be shown on the sidebar on the section named “What is happening on Bee Side of Zo’C”. You can also subscribe the mailing list or sign the feed.
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Dear readers, I apologize for the long time the blog has been left outdated. Most of the time I try to keep my writing on about 1~2 posts per week, but lately I have been just too busy.
I do have a bank of posts for the hard hours that is actually a large one but, I must confess, nothing on it is completely finished and revised. Yes I know, shame on me!
The reason why I am in such a hurry is that Anna and I are permanently moving to Europe in less than two weeks, and the amount of time such a move consumes is just huge.
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Guilherme
is a Web Designer focused on web standards and the web ahead of us.
