Macro Photograph of Dragonfly
by Photo TipMan
A relatively small lens aperture was needed just to keep most of this dragonfly in focus.
A long telephoto was used and the depth of field was narrow despite the lens opening of f-8
Photographer: Petr Kratochvil
Camera: Canon EOS 5D Mark II
Shutter speed: 1/320
Aperture: f 8.0
Focal length of the lens:400 mm
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Coffee Beans -example of narrow depth of field
by Photo TipMan
One of the types of photography I enjoy tinkering with is macro photography. Depth of field really comes into play as a big factor in the final photo.
Although this example is not a true macro image by definition, the depth of field is very narrow due to the following:
1. close focus distance,
2. telephoto lens,
3. large aperture,
4. large size sensor.
I used a single 13mm Opteka lens extension tube with my Canon 85mm f1.8 lens and Canon 20D SLR, mounted my my Manfrotto 3021 tripod with pistol grip ball head.
Exposure was f-3.5 at 1/50 second, ISO 400 using natural window light, coming through my kitchen window from the right,with a large white reflector board filling the shadows on my left.
I am a natural lighting geek and I love fresh ground coffee, so the idea came to me to create a still life photograph.
I wanted to use the coffee beans, natural lighting and at least one of my extension tubes to create a decent narrow depth of field example.
It's not an award-winning photo for sure, it lacks a center of interest, but it is a good example of how you can control the focus and depth in your image.
Shallow Depth of Field-Spiderweb
Spider Net with Dew
When doing macro photography depth of field is always a big factor in the end result of your photo.
In this example taken by Petr Kratochvil, the narrow depth of field is necessary to separate the tiny details of the subject from the background.
Our talented photographer used a large f-4.5 aperture with a 100mm lens to get the desired shall depth of field.
The composition is quite simple and shows the delicate nature of the finely woven tapestry of the spider.