Sigma TC-1401 Teleconverter and 105mm f/2.8 Micro Nikkor
Sigma TC-1401 teleconverter on the Micro-Nikkor 105mm f/2.8 Detailed Evaluation
Ed Dozier
Dec 18, 2020
Lens Focus Fine-Tune: Things Can Change
Lens focus doesn't always stay perfectly calibrated. See how to check it and fix it.
Ed Dozier
Dec 4, 2020
Telephotos: Length Matters
Why do photographers lug around big telephotos? Because length matters. See why.
Ed Dozier
Nov 21, 2020
Vello Battery Grips: Good, Bad, and Ugly
The good, the bad, and the ugly about Vello battery grips for Nikon cameras. Mostly good.
Ed Dozier
Nov 6, 2020
Multi-shot HDR with Nikon DSLRs, Lightroom, and HDR Efex Pro 2
How to make quality HDR photos using multiple raw shots, Lightroom, and HDR Efex Pro2.
Ed Dozier
Oct 24, 2020
The Single Focus Calibration Penalty
The single focus-calibration setting on Nikon cameras can lead to terrible resolution loss using their zoom lenses. Find out how bad it is.
Ed Dozier
Oct 9, 2020
Image Resolution versus Increased ISO
This study measures how increasing camera ISO affects image resolution.
Ed Dozier
Sep 19, 2020
How Lateral Chromatic Aberration Changes With Aperture
How to measure lens lateral chromatic aberration as you change aperture using the MTFMapper program.
Ed Dozier
Sep 5, 2020
Nikon Coolpix A Review : 7 Years Later
This 2013 Coolpix A was the mirrorless version of the Nikon D7000 from 2010. Has time taken it's toll? Let's see.
Ed Dozier
Aug 21, 2020
MTFMapper 7.29 Adds Chromatic Aberration Measurement
The MTFMapper program (version 07.29) just got the new ability to measure lateral chromatic aberration. I help explain use of this addition
Ed Dozier
Aug 7, 2020
