Photographs: Architecture, Photographs: San Francisco, Photographs: Structures and Objects

Turret Bridge, SFMoMA

January 29, 2017 G Dan Mitchell Leave a comment

The bridge across the turret atrium at the San Francisco Museum of Modern Art

The San Francisco Museum of Modern Art (SFMoMA) is a fascinating architectural structure, in addition to being the home for a large collection of modern art, including that in the possession of the museum and addition work that travels there for exhibits. Since the recent remodel and expansion, the facility combines two components, the newer galleries and the shorter original building with its central open area. This atrium is the most prominent element of that space, extending from the ground floor to the iconic rounded skylight feature.

A pedestrian bridge crosses the upper reaches of the atrium. Its semi-transparent floor provides a bit of excitement — or terror! — for visitors who have the courage to look straight down. I’m fascinated by visual elements of the bridge and the space it inhabits, with light spilling down into the atrium’s well from that round skylight to flow over and around the curves and angles of the structure.

All media © Copyright G Dan Mitchell and others as indicated. Any use requires advance permission from G Dan Mitchell.

Photographs: Nature, Photographs: The Southwest, Photographs: Utah

Juniper, Massive Sandstone Cliffs

January 28, 2017 G Dan Mitchell Leave a comment

Massive sandstone cliffs tower above a single juniper tree among boulders

In the early evening, after a full day of photography that had begun in sub-freezing temperatures atop a remote ridge in Capitol Reef National Park, we found ourselves back in the more civilized regions, in a canyon served by a well-used road where a parking lot marked the jumping off point for trails that extended beyond the road end. We photographed here for a while, and as the canyon light faded we wandered back to our vehicle and loaded up to depart.

As we exited the mouth of the canyon and the terrain opened up, soft and subtle evening light glowed on the massive cliffs above. We had thought we were finished for the day, but we quickly reconsidered, pulling over and jumping out to retrieve cameras and tripods and find places from which to photograph in the diminishing light. I was intrigued by these huge, reddish blocks of sandstone standing against the base of a cliff of lighter rock, with a single juniper tree growing amongst the boulders.

All media © Copyright G Dan Mitchell and others as indicated. Any use requires advance permission from G Dan Mitchell.

Equipment

Comparing 33 x 44mm “miniMF” and 24 x 36mm Full Frame Sensors

January 27, 2017 G Dan Mitchell Leave a comment

Comparing Full Frame and miniMF Sensors — Comparing full frame 24mm x 36mm and Fujifilm mini-MF 33.8mm x 43.8mm sensors

Starting a few years ago with cameras like the Pentax 645d and then 645z and continuing with new cameras from Hasselblad and Fujifilm, systems using the “miniMF” 33mm x 44mm sensors have become more readily available and less expensive.

In preparation for writing something about the merits of the two types of systems I created this image that holds quite a bit of technical comparison data based on pixel counts (e.g. — “megapixels”), sensor size, and ways of comparing them.

For now I won’t try to analyze this too much, except to say that comparisons between the two formats are more complicated than you might think and they are somewhat subjective — it matters how you plan to use them. For example, do you prefer to use the 3:2 aspect ratio of full frame, or the 4:3 ratio of miniMF, or will you adapt to whichever you are using? This chart shows you how that affects your comparisons.

NOTE: The graphic is a first attempt at including a lot of information in a single chart. It has some problems, especially with the numbers representing crop factor. I’ll update the image to correct the errors before long, and at that point I’ll use it in a more substantive post about comparing the formats.

Photographs: Architecture, Photographs: Southern California, Photographs: Urban/Street

Door, Steps, and Window

January 27, 2017 G Dan Mitchell Leave a comment

The front of an urban Pasadena building at twilight

Here I’ll interject an “urban landscape” into the stream of mostly natural landscape photographs that I’ve recently posted. This photograph comes from a visit to Southern California, mostly in the Pasadena area, just after the New Year’s Day Holiday. We were there for a family event, but there were plenty of opportunities to do street and similar kinds of photography in the characteristic Southern California environment.

We had been out walking in the afternoon, and as evening came on it was that time that is so magical for handheld street photography, the time just after sunset when there is still ambient light as artificial lights start to come on and take over the landscape. We continued to wander, taking a big look back into central Pasadena and past some residential areas where I found this little vignette.

G Dan Mitchell Photography

Turret Bridge, SFMoMA

Juniper, Massive Sandstone Cliffs

Comparing 33 x 44mm “miniMF” and 24 x 36mm Full Frame Sensors

Door, Steps, and Window

Photographer and visual opportunist. Daily photos since 2005, plus articles, reviews, news, and ideas.