Posts

Purple Flowers

Purple Flowers

I’ve made it this far, time to stop and smell the roses. Try out the tag surfer on the right, that list of keywords at are all different sizes — you might find something unusual!

European Starling, Sturnus Vulgaris

European Starling, Sturnus Vulgaris

Remember the Mirror lens that caused the ring effect? (Example) This is from it’s replacement, the Tamron 200-500mm. Same power, 500mm, but better bokeh (out-of-focus areas) — check out the leaves and branches behind him.

Christmas Lights

Christmas Lights

Remember the big tree from Monday? Here it is out of focus. 🙂 Yesterday I talked about the aperture being the variable that allowed for the most creativity? Here’s what I was talking about. The little branch is close and in focus. The lights in the background are out of focus and what the sensor is capturing is the “circle of confusion.” The shape created by this is called bokeh.

In short: big focal length (250mm), big aperture (f4.5), big difference in range to subject (5ft & 50ft).

Gaviidae Lights

Gaviidae Lights

The golden hues of Christmas lights at the Gaviidae Shopping Center in Minneapolis. This was shot ar 300mm with a large aperture to throw the lights behind it out of focus.

High Noon Light with Bokeh

High Noon Light with Bokeh

Ah, the lovely browns of late autumn in Minnesota. I went exploring along the Minnesota River yesterday and though I chased a woodpecker for a while, I chose this picture for today.

The high-noon sun is usually a problem for most situations, but I found a way to make it work. The high light was glancing down on this little fluff-ball giving it dimension — notice the way the stems have clear light and dark sides. Since the sun was high, the dark-brown trees were, well, dark. By using my telephoto at the widest aperture and placing the subject just inside my minimum focal distance, I was able to throw the background completely out of focus.

Depth of Field (the area in focus) is determined by three things: aperture, distance to the subject and focal length. In this case, I was maximizing all of these factors which makes for a nice Bokeh. I’ve done this before and probably will again. A good time to try this is when you have a good solid color in the background or a confusing one.

Bokeh is the light effect created by the out of focus light from the background. The quality of this effect on the image is a function of and an important distinction in the quality of the lens. For example, at some point everyone who has an SLR with interchangeable lenses discovers the 500mm mirror lens for $90 on ebay. Why is this powerful lens so cheap? It has very little glass in it and two problems: the aperture is fixed at f/8 and the bokeh looks like little donuts. Seriously, little white donuts.

That’s it for today, have fun and keep your focus!

Purple Delights

Purple Delights

I saw the purple invasive plants in the background and changed to my telephoto so that I could group the thistle in the foreground with the soft, out-of-focus plants in the back. Just as I got the picture framed up, this little hero dropped in for his close-up!