Posted on December 10, 2017, 11:02 pm, by QT Luong, under
Gear.
Summary: The possibly first in-depth review of the new Sony FE 24-105mm f/4 G OSS lens comparing it for reference to the Sony FE 24-70mm f/4 and Canon EF 24-105mm f/4L lenses using precise and reliable measurements. A much anticipated lens When I started to photograph with the Sony A7R2 in the summer of 2015, […]
Posted on October 29, 2012, 9:41 am, by QT Luong, under
Gear.
This is a review of the Nikon 14-24 f/2.8 lens from the point of view of a Canon user. However, Nikon users will find the sections about filters and focus shift of interest as well. Canon has many great lens offerings, but their area of weakness has long been the wide-angles. Both the two Canon […]
Posted on January 12, 2012, 2:39 pm, by QT Luong, under
Gear.
The short 70-200 tele-zoom is one of the most popular professional lenses. It covers a useful focal length range, good from portrait work to sports shooting and also for distant landscapes as well as details. Canon makes four of such lenses. All of them use a ring USM motor which offers fast, silent focus plus […]
Posted on March 22, 2011, 4:00 am, by QT Luong, under
Techniques.
What ISO should you use for lowest noise ? Everybody knows that low ISO will result in lower noise and high ISO will result in higher noise. But is it a continuum, as one would intuitively think, or are some ISOs better than others ? In the past, I had seen advise to use only […]
Posted on August 17, 2010, 10:07 am, by QT Luong, under
Gear.
Canon makes two wide-angle zooms for full-frame cameras. Both are L-lenses, reasonably well-built, with fast USM autofocusing, a non-rotating front element, and an environmental rubber seal. The 17-40/f4L was introduced in 2003. The 16-35/f2.8 L II, released in 2007, replaced the 16-35/f2.8L of 2001, which itself replaced the 17-35/f2.8L of 1996. I have not used […]
Posted on June 29, 2010, 1:23 am, by QT Luong, under
Gear.
About a decade ago, I switched from Nikon to Canon. I was attracted, among other things, by the availability of a 24mm tilt and shift (T/S) lens, which brings to 35mm some of the controls available to the large format camera photographer. While it has served me well, its T/S functions making it possible to […]
Posted on May 24, 2010, 12:10 pm, by QT Luong, under
Resources.
CPS is a great service that used to be under the radar for many Canon photographers, because it is not widely advertised, and membership requirements were strict. CPS offers expedited and discounted repairs, as well as free equipment loans. I’ve read of people waiting weeks for their cameras to be repaired. On four occasions, I […]
Posted on November 16, 2009, 12:01 am, by QT Luong, under
Gear.
Being a large format photographer, I tend to be a bit picky regarding image quality. When using 35mm cameras, since one needs to enlarge so much from the small image capture, everything has to be the best possible in order to yield a sharp print. Of course, image quality is a minor aspect of photography, […]
Posted on November 11, 2009, 1:23 pm, by QT Luong, under
Gear.
I am often asked for lens recommendations (although I have already wrote a page of technical comments). For those wishing to make photographs similar to mine, and using a Canon full frame camera, I always suggest the Canon 25-105/4 L IS as an all-purpose lens. I consider this lens to be the best zoom ever […]
