Saturday, 18 June 2011
Adobe Bridge
To start import your images into a desired folder do this via bridge or simply copy your folders to a designated folder into a directory on your computer, i personaly use a card reader and use windows explorer to drag all my files into a folder of my choice.
step one import your Photos to your computer
Step Two your first look at analysing you photos and sorting losers and Keepers
Step three now we have our keepers we go back and rate them
Step four Add any extra Meta Data that you require
Step Five Group sets of images into stacks
Sunday, 12 June 2011
Crop Factors
Crop factor is based on the old style 35mm film camera this is the industry standard reference point and is often referred to as full frame
If you compare the size of the film in a normal SLR (film is 35mm) to the image sensor in most DSLRs you’ll find that the size of the DSLRs sensor is generally smaller (unless you get what’s called a ‘full frame’ DSLR). Until recently full frame sensors were far and few between but more models supporting full frame sensors are becoming more affordable and are not limited to only the professional photographer.
If you take a photo with a smaller sensor and the same lens it will only show a smaller area of the scene.
To illustrate this I’ve show how different cameras with different image sizes will see an image.

Black – Full Frame
Yellow– 1.3x Crop Factor
– Red 1.5x Crop Factor
Green – 1.6x Crop Factor
When you enlarge images to the same size from different sensors the ones with the smaller sensors will be enlarged more – making it seem bigger.
As a result – when you fit a lens to a camera with a smaller sensor the lens is often said to have a larger equivalent lens size. But remember the truth is you are loosing detail through your lens compared with a full frame sensor
The table below that shows the equivalent lens sizes for different crop factors. The column on the left is the lens focal length on a full frame camera.
| Full Frame | 1.3 x | 1.5 x | 1.6 x | 2.0 x |
| 12mm | 15.6 | 18 | 19.2 | 24 |
| 24mm | 31.2 | 36 | 38.4 | 48 |
| 50mm | 65 | 75 | 80 | 100 |
| 70mm | 91 | 105 | 112 | 140 |
| 100mm | 130 | 150 | 160 | 200 |
| 200mm | 260 | 300 | 320 | 400 |
| 300mm | 390 | 450 | 480 | 600 |
| 400mm | 520 | 600 | 640 | 800 |
| 600mm | 780 | 900 | 960 | 1200 |
| 800mm | 1040 | 1200 | 1280 | 1600 |