Tag Archives: web

Photographs: Northern California, Photographs: Unclassified

Brandon’s Window Sill

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Brandon's Window Sill
Brandon's Window Sill

Brandon’s Window Sill. San Francisco, California. February 20, 2010. © Copyright G Dan Mitchell – all rights reserved.

Photograph of the kitchen window in the Mission, San Francisco, California.

A grab-shot of window sill in a Mission District apartment. Not much more to say about this one…

This photograph is not in the public domain and may not be used on websites, blogs, or in other media without advance permission from G Dan Mitchell.

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Technical Data:
Canon EOS 5D Mark II
Canon EF 50mm f/1.4 USM
ISO 1600, f/11, 1/250 second

keywords: the, mission, san francisco, california, usa, north america, street, urban, city, still, life, interior, kitchen, window, sill, plant, spider, web, diffused, bokeh, light, ledge, red, stock

Commentary, Community, News, Workshops

Michael Frye’s Weekly Photo Critique

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Michael Frye has announced at his new blog that he will be doing a weekly online photo critique. As I understand, it works like this: Readers can submit their photographs. Once a week Michael will select one and offer a detailed critique of the image, and discussion and reader participation will follow. You can read more at the link to the critique announcement above.

This sounds like a great opportunity for all, and Michael is to be commended for his generosity. (He is also to be commended for his recent embrace of online media!) Every participant to submits an image will gain from his or her own careful consideration of their own images, the selected photographer will get feedback by a fine and highly regarded photographer, and we’ll all benefit from reading and participating in the critiques. I’m very much looking forward to this!

Tests

Experiment #2: A Hint

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Here are the three source images:

The differences among them are obviously in the amount of noise that was added to the image. No noise was added to the first image – any noise there was in the original capture. 10% level “Uniform” noise was added to the second image in Photoshop. 20% “Uniform” noise was added to the third image in the same way.

The soft photograph was chosen to avoid masking the noise with a lot of other sharp detail – this image provides very smooth gradients from black to white, where noise is typically easier to detect. I also chose this image because it is nearly – but not quite – monochromatic. This meant that I could increase the effect of the noise by using color noise rather than limiting to monochromatic noise – and that the color noise would tend to be more visible against the nearly monochromatic background.

The original set of 6 jpgs includes two from each of the three versions shown here. For last-minute fun you could still visit the comment page and try to a) determine whether or not the differences are visible and b) which pairs of images are the least noisy, more noisy, and most noisy.

More information to come later this evening.

G Dan Mitchell is a California photographer and visual opportunist. His book, “California’s Fall Color: A Photographer’s Guide to Autumn in the Sierra” (Heyday Books) is available directly from him.

G Dan Mitchell: Blog | Bluesky | Mastodon | Substack Notes | Flickr | Email


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

Photographs: Coastal Redwoods, Photographs: Nature, Photographs: Northern California

Redwood Forest, Sunbeams

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Redwood Forest, Sunbeams

Redwood Forest, Sunbeams. Muir Woods National Monument, California. October 24. 2009. © G Dan Mitchell – all rights reserved.

Beams of morning sunlight stream between the trees of the redwood forest at Muir Woods National Monument, California.

This is another photograph of the wonderful morning sunlight during my late October visit to Muir Woods National Monument. I usually visit and photograph Muir Woods in softer cloudy or foggy conditions which are, to be honest, easier to photograph. That diffused light lights the shadows and reduces the overall dynamic range of the scenes. However on this morning the sun was out and the light was magical, streaming through the forest canopy and between the giant trees to light up the air and the forest floor.

I perhaps mentioned that the previous photograph I posted from Muir Woods required me to merge two exposures to deal with this huge dynamic range – but this one required three exposures separated from each other by 2-stop brackets! The brightest exposure captured some detail in the trunks of the trees and the plants near the bottom of the frame, while the darkest exposure let me retain a bit of the branch detail in the very bright area where the light comes through between the trees.

This photograph is not in the public domain. It may not be used on websites, blogs, or in any other media without explicit advance permission from G Dan Mitchell.

G Dan Mitchell Photography | Twitter | Friendfeed | Facebook | Facebook Fan Page | Email

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