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The original purpose of this site was for personal finance education. There is an extensive set of Personal Finance calculation tools as well as information in our Finance Section.

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- Personal Finance and Financial Planning.

DSLR Lens Multiplication

The sensors on most digital cameras are smaller than the sensors on 35mm film cameras the effect of this is difference is that a picture with a digital SLR will is magnified. The amount of the magnification varies by camera based on the sensor used. As an example the 75 - 300mm zoom lens you have been using on your film camera for years will have act as a 120 - 480 mm zoom on a digital SLR with a 1.6x lens magnification.

Lens magnifications for 2 popular digital SLRs
Focal Length
Canon D300
Nikon D70
20mm
32mm
30mm
28mm
44.8mm
42mm
35mm
56mm
52.5mm
50mm
80mm
75mm
70mm
112mm
105mm
100mm
160mm
150mm
150mm
240mm
225mm
200mm
320mm
300mm
300mm
480mm
450mm
The above table is used for reference purposes and to provide you with some important information. You can conclude from the table above that the size of your sensor allows you to get very powerful zoom effects. The cost that you have to pay for this power is in wide-angle shots. The major difference caused by the focal length multiplier is that it is very difficult for you to find a lense that will not distort your image at extremely wide angles. If you want the ability to take ultra-wide angle shots (like 18mm or 20mm), you may need to stick with film for now, or wait for larger sensors to hit the market.

American History
You'll consider this to be a strange bed-fellow for Gadget related information. Click here for a growing database on American History
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Economic Indicators. A primer on several key economic indicators and what they can tell you about money and investing.

Coming Soon
Coming Soon from HighPeak Software - HighPeak Photo Cabinet. A photo album/catalog/editing program. As a photographer, the hardest thing to do is keep track of your images, this software makes it easy to store, archive and search your photos to find the 1 picture you're looking for.

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