eddm1962
Think Small (Explored)
This weeks Macro Mondays theme is Member's Choice - Found In The Kitchen.
The photo above is of an object found in a great many kitchens, and is used millions of times every day. It will often leave the kitchen and travel with a family member, and sadly, often never return.
If you don’t know what it is, check back at the close of this weeks Macro Mondays entries and I will name the item for those who do not know. Remember to Think Small.
HMM.
The posted photo is of a ‘zipper’ on a zippered sandwich bag. It was taken at very high magnification, 5x on a full frame camera, and has not been cropped. The blue ‘channel’ in this photo is 1/16th of an inch high.
These bags are made of either low density or high density polyethylene, depending on their intended use. It was nearly impossible to get critical focus on the colored parts of the zipper due to their tendency to slightly fluoresce under normal light. This fluorescence causes an apparent blurring at the materials edge. At this magnification the depth of field was also razor thin. The fluorescence is what makes the colored components of the zipper look so vibrant. This vibrance also allows the two halves to appear green when properly sealed. Blue + yellow = green. If you look closely at the image, you can clearly see the texture of the clear portions of the bag at the focus plane.
HMM
Think Small (Explored)
This weeks Macro Mondays theme is Member's Choice - Found In The Kitchen.
The photo above is of an object found in a great many kitchens, and is used millions of times every day. It will often leave the kitchen and travel with a family member, and sadly, often never return.
If you don’t know what it is, check back at the close of this weeks Macro Mondays entries and I will name the item for those who do not know. Remember to Think Small.
HMM.
The posted photo is of a ‘zipper’ on a zippered sandwich bag. It was taken at very high magnification, 5x on a full frame camera, and has not been cropped. The blue ‘channel’ in this photo is 1/16th of an inch high.
These bags are made of either low density or high density polyethylene, depending on their intended use. It was nearly impossible to get critical focus on the colored parts of the zipper due to their tendency to slightly fluoresce under normal light. This fluorescence causes an apparent blurring at the materials edge. At this magnification the depth of field was also razor thin. The fluorescence is what makes the colored components of the zipper look so vibrant. This vibrance also allows the two halves to appear green when properly sealed. Blue + yellow = green. If you look closely at the image, you can clearly see the texture of the clear portions of the bag at the focus plane.
HMM