All posts by G Dan Mitchell

G Dan Mitchell, photographer and visual opportunist focusing on the Pacific coast, the Sierra Nevada, redwood forests, California oak/grasslands, California deserts, urban landscapes, night photography and more. Posting daily photographs since 2005, along with articles, reviews, news, and ideas.

Commentary, Equipment, Ideas

Myth: Diffraction and Motion Blur Worsen With More Megapixels

May 3, 2011 G Dan Mitchell 9 Comments

They don’t.

Another post that I wrote just before this one (“Why Your 21MP File “Looks Softer” Than Your 12MP File at 100%“) explains why pixel-peeping* photographers might imagine that cameras with greater photosite density (e.g. – “more megapixels”) might produce “softer” photographs, based on what they observe when they compare 100% magnification images on the screen. These cameras do not produce softer images – the results will either be equal to or better than those from lower photosite density cameras in this regard. You can follow the link to read the original post.

A reader wrote and suggested that perhaps the images from the camera with greater photosite density really are softer, but the cause is a greater susceptibility to diffraction blur or motion blur.

No. Neither is the case.

These are two additional misconceptions that can be fed by (yet again!) pondering 100% magnification crops on the screen without thinking through the actual (non-) effect of what you see there when it comes to actual photographs. Continue reading Myth: Diffraction and Motion Blur Worsen With More Megapixels →

Photographs: Architecture, Photographs: Northern California, Photographs: San Francisco, Photographs: Urban/Street

Il Trovatore

May 3, 2011 G Dan Mitchell 2 Comments

Two women near Il Trovatore, corner of Kearny and Broadway, San Francisco.

This is a simple (or maybe not so simple) street scene at the corner of Kearny and Broadway in San Francisco. I had wandered into this area on one of my street photography shoots in The City, on which I generally walk somewhat randomly through various parts of the town and shoot whatever catches my fancy.

I had just finished shooting the “Macchiarini Steps,” which are visible at the lower right. These very steep steps constitute the “sidewalk” on this short street, which is too steep for a normal sidewalk. I had first shot from Broadway, aiming up this hill, then decided to walk up the hill itself and shoot the steeps against the background of some rather dilapidated buildings. I managed to incorporate people into some of those shots using a technique that I often employ when shooting in the city: I treat the scene like a landscape and find a composition that seems to work, and then I wait for the right people to wander into the scene.

Eventually I walked back down this street and saw this juxtaposition of brick walls, red and green poles, the green and white colors of the upper-story “Il Trovatore” (which I assume is an Italian restaurant) and the more distant buildings with their faded colors against an overcast sky. I also liked the fact the very steep stairs ended up being parallel to the bottom of the frame. In addition to all that, this is also about colors: the red jacket on the woman crossing the street, the very red lamp post on the sidewalk, the red of the brick buildings; green colors of the chalk board, the restaurant, and the street sign; and then the odd bits of yellow on the sidewalk and the street.

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Commentary, Ideas, Thinking Aloud

When Inspiration Takes a Vacation

May 2, 2011 G Dan Mitchell 10 Comments

It happens to (almost) everyone. The pendulum sometimes swings towards enthusiasm, inspiration, and creative work that almost seems to flow all by itself. But pendulums swing both directions, and one of the prices we pay for doing creative work is having to cope with the inevitable dry periods when enthusiasm, inspiration, and creativity are nowhere to be found, periods when you can find yourself questioning your talent and abilities. (I think that one characteristic of “mature” artists is that they understand this cycle and are less likely to be undone by it – both because they are familiar with its existence and because they have learned ways to deal with it.)

I don’t claim to be the definitive expert on this issue, but I have some experience with it in both photography and music. There is much more to be said about this than I have space for here, but I thought I’d share a reply I wrote in a forum where a poster posed the following: Continue reading When Inspiration Takes a Vacation →

Photographs: Architecture, Photographs: Northern California, Photographs: San Francisco, Photographs: Structures and Objects, Photographs: Urban/Street

Laundry, Fire Escape, Chinatown

May 2, 2011 G Dan Mitchell 2 Comments

Laundry is hung to dry on fire escape above the streets of Chinatown, San Francisco.

This is a photography from one of my early morning photo-walks in San Francisco last summer. I take the train to the City very early in the morning and then walk. A lot. On this morning I passed through Chinatown on my way to the North Beach area fairly early in the morning – well before the tourist crowds showed up. A few blocks from the main tourist area it is a different world with markets opening up, deliveries being made, and busy people everywhere. I was working in more or less traditional street photographer style – to the extent that someone armed with a DSLR can do that ! – and shooting with just a 50mm prime lens on the camera and trying to work quickly as images presented themselves.

I imagine that many people who pass through here may easily be so focused on the activity at the street level that they might not look up. It often strikes me as surprising that in areas where so much is going on at street level – many people, colorful shop fronts, lots of action – the fronts of buildings right above present a completely different appearance. The first thing that caught my attention here was the laundry festooning the fire escape landings. But I also like the geometry of dark landings, ladders, and pipes against the lighter stucco wall, and the wonderful light coming through the morning haze from upper right and casting the lined shadows across the walls of the building.

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