Category: Camera parts

21 Aug

Is your UV filter screwing up your photos?

Chris Lane / Camera parts, photography, review / / 4 Comments

I recently watched a little video from Kent Weakley about the dangers of using UV filters on your lenses. This is common practice by many photographers for a variety of reasons. It was done partially back in film days because of damage UV rays could do to the film itself. Now I think it is primarily to protect the lens from scratches, bumps, etc. He didn’t seem to go into absolutes on what exactly the effect to your photos would be, so I went ahead and tested it. I took a variety of photos on a 50mm 1.8 Canon lens with a Tiffen UV Protection Filter on a Canon 40D in different situations, with the exact same settings once with the UV filter and once without. This way I could see whether the color, light level, or anything else was affected. I decided to also test my ND filters to see what happened with those. In that case, since ND filters specifically reduce the amount of light into the camera, I only adjusted the shutter speed to compensate. Also, I made sure to clean my lens and filters thoroughly before the experiment. These are my results:
First up, my granary. Shot at ISO 200 1/250 f/3.5
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14 Aug

How I almost lost nearly 200 photos

Chris Lane / Business, Camera parts / / 2 Comments

…and what I learned from it.

I recently went to do some location/event photography at the county fair for the Northwest Minnesota Arts Council I was there for a number of hours and took a slew of photos (around 162 give or take) and promptly backed them up to my desktop when I got home. The following weekend I was going on another trip for the NWMNAC for photography so I dumped all my cards, just in case I had forgotten previously. Since there were many gigabytes of data, it took a considerable amount of time to move. So, not wanting to waste time just sitting in front of a screen waiting, I left it to go and went to do something else.

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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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28 Dec

Cameras for Christmas!

Chris Lane / Camera parts, History, photography / / 4 Comments

Zeiss Nettar 515 header
I hope everyone had a wonderful Christmas this year. I was very pleasantly surprised at the gifts that I received from my wonderful wife, Melissa. She knows that I love old things, antiques and the like, and cameras in particular. So for Christmas she got me not one, but three antique cameras. Two of the cameras are still film cameras and one is a movie film camera. I did a little research on them and took some photos to share below. And you can believe I will definitely attempt to take some photos using the cameras in the future, as well.

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