Buying a Used Lens: Inspection and Testing Guide for Photographers
Ensure you’re not getting ripped off on a new used lens purchase by insuring your inspection is thorough and covers the most important areas.
Canon Autofocus Hunting Lens Drive Test Part 2
Well, here we go again, revisiting my previous posts AF drive speed tests with a different camera, this time an EOS 40D. Like the last time, timing was approximated by filming the drive sequence at NTSC 60 FPS and counting the frames from the first frame before motion occurred until the first frame after the […]
Canon EOS AF Adjust Frame Capture Script
Capturing autofocus adjustment images is a tedious process. This AutoHotKey script for Canon EOS Utility users can automate that process.
Lens Resolution Tests need Error Bars: Lens Rentals studies sample to sample variances
The other day I came across a discussion about Lens Rental’s blog post on lens variation. In retrospect it should be pretty obvious that there is going to be variation between lenses. In fact, any old hat photographer knows that some copies of lenses are gems and others are total bombs, even when we’re talking […]
Flash, Photography, and Copyright Infringement
I’m not sure what the attraction to Adobe’s Flash is with photography sites. It’s not the most useable, accessible or even necessarily the best technology. Flash can easily hamper usability, and become a security and privacy nightmare for users, isn’t indexed by search engines, and on top of all of that simply isn’t supported or […]
Lightroom 3 Beta 2 – One Week Later Review
Impressions of Adobe’s Beta Release of Lightroom 3 after a week of use.
Custom White Balances: Why Not to Use Printer Paper
When creating a custom white balance, it may be tempting to use any sheet of white paper as the target. Find out why this doesn’t work as well as you might expect.
Autofocus Testing and Microadjustments, Round 2
Today concluded round 2 of serious focus testing. What’s different this time from the last? A new target, a new alignment strategy, and some new results. Last time I looked at autofocus, I had enough problems focusing fast lenses that I was growing concerned that there was either a systematic design flaw or similar error […]