Archive Index

Technical Notes

learn Photoshop TECHNIQUES

• Intro to Saving for the web
• Saving for the web in more details
• Balancing light and dark (in low-light)

Depth of Field, Aperture, Circles of Confusion:

Check out your copy of John Greenwood's exposure articles. They contain some interesting information and experiences, these archived articles deal with technical issues:

• April 2004 Exposure talks about depth of field.
• May 2004 Exposure is about aperture, depth of field, circles of confusion, and viewing distance.

• UTUBE Movie on Content Aware Scale
• Understanding Depth of Field
• Batch processing in Photoshop
• Check out this site for 130 fantasic tutorials

Sharpening

Ron Bigelow has written very good articles describing the many aspects of sharpening your digital photograph. He describes his articles as a "thinking person's guide to sharpening". www.ronbigelow.com/articles/articles.htm ... see links below...

Part One explains what sharpening is, why it is needed and how Unsharp Mask works.

Part Two goes into the general considerations of sharpening, the various Unsharp Mask settings and points to the problems of single pass sharpening.

Part Three looks at the Smart Sharpen tool in Photoshop CS2 and High Pass Sharpening.

Part Four is about LAB based sharpening and Layer Based / Luminosity mode sharpening.