Tag: light

28 Dec

Dreaming of summer

Chris Lane / photography / / 0 Comments

As the low for the night tonight is -30°F with a wind chill of -60°F
(image from accuweather.com)
Cold!
I am obviously dreaming of summer. I was going through some old photos that I had not yet processed and found this one of stormy weather where the light was shining through onto the woods near my house. The color was quite intense. So, this is just a quick post to show how I wish it still was. The color is because it was in the fall, October 12th was when it was taken.

Light Shining Through

Light Shining Through © Chris Lane Photo

26 Apr

What’s the deal with ISO?

Chris Lane / Camera parts, photography / / 0 Comments

In short, ISO is the sensitivity of the film or digital sensor.

To give you the best example of what changes in ISO does to a photo, I made a chart below. Using a ribbon origami rose that I made, these photos are taken with a Canon 40D, so different cameras will have different results. The large picture at the top is taken at the lowest ISO of 100 to show what the entire picture is. Below that I have images of each ISO setting at 1/3rd increments. These are 100% of the pixel size right out of the camera. For each ISO change I had to also change the shutter speed. The aperture was the same in each at f/5.6.
At the beginning I have the two extremes of the highest and the lowest next to each other to show the dramatic difference. Then at the very bottom that full photo is taken with 1600 ISO. The reason I did this is to show, depending on the use (here being the web), a high ISO will still be a suitable option. At this small size on a website, the noise is barely noticeable. But blow it up to a 16×20 print and the difference between them will be quite intense. I very rarely would use 3200 ISO, and isn’t really native to this camera (thus the H). But it is nice to have available in a pinch.

ISO Comparison chart

So what is it all about then?

ISO is a standardization that was
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26 Oct

Camera Basic – Shutter Speed

Chris Lane / Camera parts, photography / / 2 Comments

The shutter is what really makes a camera. In essence a camera is just a box that holds some film or a sensor with a hole in the end that opens and closes to let in light. This is evident from as far back as the camera obscura which helped artists essentially trace a picture of a person to resemble their likeness. Similar to that is the pin-hole camera, where a piece of film or printing paper is placed inside a camera and literally a pin-hole is punched in the other end which can be uncovered to take some surprisingly phenomenal photographs. Only slightly more complex from this is a typical 35mm camera. This can introduce aperture, which is actually dependent on the lens. It also gives the ability to adjust mechanically the time the shutter is open. The size of the opening through the lens dramatically decreases the amount of time that the shutter need be open in comparison to pin-hole cameras. Then with DSLRs (Digital Single Lens Reflex) cameras, the only thing that is really changed is instead of the shutter opening to a silver halide film plane, it opens to a light sensor of some kind. Today the typical is the CMOS sensor, which is beyond the scope of this post to explain.

Shutter speed generally adjusts from 1/8000 of a second to as long as you want it open,
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18 Nov

Critique – Sarah S.

Chris Lane / Critique, photography, Retouched / / 3 Comments
I have learned through both college and work experience that one of the best ways to learn anything is through critiques of your work and other’s work. That is why, in the spirit of teaching through this blog, I am happy to critique the work of submissions from readers. If you would like a professional critique from me and learn how to better your artwork, be it photo, design, painting, et al, just read these submission guidelines and submit an image through my critique contact form. You can also email your submission to photocrit [at] chrislanephoto.com.

Photo from Sarah S. Prairie Smoke

Today I have a photo from Sarah S. She said she took this photo of Prairie Smoke (aka Old Man’s Whiskers or if you are really hardcore Plantae Tracheobionta Spermatophyta Magnoliophyta Magnoliopsida Rosidae Rosales Rosaceae Geum L. Geum triflorum Pursh) in the North Dakota Badlands handheld in a shady ravine. Looking at the metadata, it was taken with a Canon PowerShot S3 IS at f/2.7 at 1/60.

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