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On November 10 I
published an article based on
extensive studio tests of the Pentax K1 II and K3
These tests look at color rendering, performance at various ISO levels, highlight headroom and
rendering in "Pixel Shift" mode.
On October 20 I published a review of the Pentax K3 III and K1 II tested side by side. This is the first in
a new series of Pentax articles which will also include full side by side studio tests of these two cameras
as well as full studio/field reviews of the Pentax HD FA 21/2.4, 31/1.8 and 43/1.9 lenses.
On August 31 I
published a full review of the
Fujinon XF 33/1.4 LM WR as compared to the
Fujinon XF 35/1.4 R.
On July 8 I
published an article about
working in B&W with digital camera raw files. It
first looks at the
topic in broad ways and then moves through some examples of my own conversion steps when working
with monochrome and color source files. It also looks at ways in which color channel blending, when
creating B&W files, can affect noise.
On June 2 I published an article based on studio tests of highlight headroom (and estimated native
ISO) for the Leica SL, SL2 and SL2-S.
On May 17 I
published an article based on
studio tests of highlight headroom (and estimated
ISO) for the Fujifilm GFX100S and GFX50S II. This article may be of interest to any serious digital
photographer who cares about useable dynamic range.
On April 28 I published an article based on full studio tests of the Ricoh GR IIIx's lens.
On March 26 I published an article
based on studio tests of highlight headroom (and estimated
ISO) for the Leica M11, M10 Monochrom and M10-R. This article may be of interest to many serious
digital photographers (working with any brand of camera) as it looks, in some depth, at the nature of
"useable dynamic range", the relationship of that to various colors and color channels as well as other
On March 22 I published an article based on studio tests of resolution, luminance vignetting and color drift
which compare the Leica M11, M10 Monochrom and M10-R using a compact 28 mm lens and a compact
21 mm lens.
On February 28 I published an article
based on studio tests of resolution, luminance vignetting
and color drift
which compare the Leica M11, M10 Monochrom and M10-R using two apochromatic 35 mm lenses.
On February 9 I published an article based on Black & White studio tests which compare the Leica M11,
M10 Monochrom and M10-R.
On January 18 I published an article based on detailed color studio tests of the Leica M10-R and M11. This is
a 14-page article that looks at color rendering, noise levels at various ISO and DNG settings, color moire and
infrared color drift resistance/color neutrality.
On January 13, 2022 I published my review of the new Leica M11. This is the first in a series of six articles that will
be looking at this camera in detail -- including many studio test comparisons with the Leica M10-R and M10
December 7 I published a full
review of the Fujifilm GF 50/3.5 R LM WR based on field and
done using a Fujifilm GFX100S and a GFX50S II.
November 23 I published a
detailed comparative 18 page field and studio review of the
and GFX50S II.
On October 31 I published what
is essentially two articles in one. It is a detailed full
field and studio review of
the M-Mount Cosina Voigtlander APO-Lanthar 35/2.0 ASPH. Woven into that are new field tests of the Zeiss
ZM 35/2.8 Biogon C as well as side-by-side studio tests of the CV 35 APO, the Zeiss ZM 35/2.8 and the Leica
M APO 35/2.0 Summicron ASPH. This is a 16 page article with more than 110 illustrations.
September 28 I published a full
review of the Pentax HD DA 40/2.8 Limited based on field and
done using a Pentax KP.
September 15 I published a full
review of the Nikkor Z 35/1.8 S based on field and studio
tests done using the
August 31 I published a
comparison test that looks at the resolution seen from the
Leica SL, SL2 & SL2-S when
paired with a Leica M APO 35/2.0 Summicron ASPH. It also looks at the luminance vignetting and color drift
seen from the Leica SL & SL2-S when paired with that same lens.
August 12 I published a
comparison test of resolution, vignetting and color drift for
the Leica SL, SL2 & SL2-S
when each was paired with a Leica SL APO 35/2.0 Summicron ASPH.
July 30 I published a
short review (based on field and studio tests) of an older
Nikkor 50/1.8 AIS tested
on a Nikon Z7.
July 15 I published an
extensive review of the Fuji XF 18/1.4 based on field work and
comparing the new lens side by side with the Fuji XF 18/2.0 (on a Fuji X-Pro 3).
June 29 I published a
short review (based on field and studio tests) of an older
Nikkor-Q 200/4.0 tested
on a Nikon Z7.
June 10 I published a full
review of the Sigma L Mount 35/2.0 DG DN based on extensive
field tests done
using the Leica SL2-S and studio tests (done using a Leica SL2) which were done side by side with a Leica
SL APO 35/2.0 Summicron ASPH. The Sigma 35/2.0 DG DN is also available in Sony E Mount.
May 21 I published tests of the
highlight headroom and estimated native ISO levels of the
Q2 Monochrom, Q2 and M10 Monochrom. This article may be of interest to any digital camera photographer
who is interested in careful exposure and usable dynamic range.
May 7 I published my field review of
the Leica SL2-S tested with the Leica M APO 35/2.0 Summicron
and Sigma L 35/2.0 DG DN.
April 29 I published a full review of the
Cosina Voigtlander 21/3.5 Color-Skopar ASPH based on field
testing and studio tests done, side by side with the Voigtlander 21/4.0 Color-Skopar, using a Leica M10
Monochrom and M10-R.
April 12 I published a full
review of the Sigma L Mount 24/3.5 DG DN based on extensive
field testing and
studio tests done using a Leica SL2. This lens is also available in Sony E Mount.
March 25 I published a full
review of the Pentax HD DA 35/2.8 Macro Limited based on
testing and studio tests done using a Pentax KP.
March 17 I published a full
review of the Cosina Voigtlander 35/2.0 Ultron ASPH based on
testing and studio tests done side by side with the Leica M APO 35/2.0 Summicron ASPH and Leica 35/2.0
March 4 I published an
extensive (21 page) review of the new Leica M APO 35/2.0
Summicron ASPH based
on field testing and full studio tests. For the latter, I tested the new lens side by side with the current Leica M
35/2.0 Summicron ASPH and current M 35/1.4 Summilux ASPH. The core test camera was an Leica M10-R
but I also did resolution tests using the M10 Monochrom and SL2. The field illustrations in this article were
made using the M10-R and an SL2-S.
February 19 I published my
studio tests of the new Leica 50/1.2 Noctilux Aspherical used
on the Leica
M10-R, M10M and SL2.
February 8, 2021 I published an
extensive field review of the new Leica 50/1.2 Noctilux
Aspherical tested on the
Leica M10-R and SL2. Up next will be full studio tests.
Every writer naturally brings his or her own
experience and perspective to the articles he or she
writes. My writing is heavily influenced by
my experience working as a professional photographer
for more than thirty-five years. I'm
primarily interested in cameras and lenses as tools
for drawing, as I believe that photography really is a
branch of drawing. As the photographer Henri
Cartier-Bresson once said in an interview, "My photography is just
an instant drawing...I never quit drawing. The
camera is a way of drawing."
I'm also guided by the photographer Andre Kertesz's observation, "I see the thing, I feel the thing, I make the thing". So when I review a camera or a lens, I look primarily at how it presents the world to the photographer (via the finder), how it works as a tool in the hands, and how it draws the kind of picture we call a photograph.
"Quite simply, I think your sections on 'drawing' and and on 'sunny day lenses' are the best writing about photographic lenses that I have read - whether in magazines, journals, books or the various sources online. Few professional writers about photography ever attempt such a full consideration of the range of lens performance characteristics and the different ways in which they are photographically significant. Some discussions in photographic communities online circle around the subject, but don't achieve the focus, rigour and articulacy that you have managed here. Your article is what all writing about photographic lenses ought to be like, yet it's astonishing that next to none of it is. Interesting though Irwin Puts Leica lens book is, it would have been so much more interesting, and so much more appropriate to its subject matter, if it had been written as you have written here...I found the article incredibly useful and interesting. A great help in clarifying and firming up what I have experienced and half-understood about how different lenses work."
"We all owe you a vote of thanks for such a massive and thorough piece of work. What a concept-- a "lens test" that is really about the pictorial effect of how lenses draw their images. Lines per millimeter and MTF graphs have their place, but your article really gets to the heart of the matter in the way that photographers can relate to instantly."
- Peter Klein, USA
- Jim Watts, USA
"...a very informative, even enlightening, work. It not only provides visual evidence of comparative lenses' performance, it also gets right to the most important factor of lens evaluation - how the image looks to the photographer. Long ago I stopped reading test charts of lenses since none of my clients ever published any. It is always the look of the finished image that counts."
Richard Weisgrau, USA
"I hope your tests become a benchmark for other reviewers to pay more attention to the real needs of photographers..."
- Phil Fogle, USA
- Bill Marshall, USA
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