Questions And Answers

Contemplation by Wayne Pinkston Via Flickr: Corona Arch near Moab, Utah. The person in the arch is my wife and it was her first real night hike. She had accompanied me to other night shoot but not one requiring hiking. The hike was about 1.5 miles or 2.4 km. First of all we are from Virginia (flat). A Utah mile (km) is a lot different than a Va. mile. It would seem that they used a different rule to measure distance in Utah, lol. 😳 Second, everything seems longer in the dark, as you cannot see landmarks and it's hard to see you are making progress. Third, there are a couple of cables and a ladder to make the hike safer. They are not hard, but they do look intimidating in the dark. So, it was definitely a case of "are we there yet"???? She was really a good sport but thought I was crazy to take her there. It's all a lot easier if you have seen it in the daylight. So thanks Vickie for being a good sport and my model. One it was over she admitted she had a good time. 😀. Www.waynepinkstonphoto.com Thanks for taking the time to look. Hope you enjoy! Big thanks to the wonderful Flickr family out there. Please join me at: Website Facebook Instagram Blog

A Walk in an Alien Land by Wayne Pinkston Via Flickr: This is the most delightfully "otherworldly" place I have experienced at night. This is the "Egg Hatchery" or "Alien Hatchery" of the Bisti Badlands of New Mexico. They are appropriate names. This is a small flat plane between the hills, maybe the size of 1 or 2 football fields (whichever kind of football you prefer). Scattered around the surface are rock formations that look like giagantic petrified eggs and broken eggs. Many look like they are setting on egg cups or holders. At night the erie shapes and shadows let the imagination run wild. This is a panorama, and it may not show the detail well, but I wanted to show the feel of the landscape. I still need to process the closer version of the "eggs". It's a wonderful place to visit but take a GPS device. There are no trails and you find the areas of interest by GPS co-ordinates. Otherwise you wander around forever. This is a panorama of 210-240 degrees, created by 12 vertical images combined in Lightroom. All are single exposures (the sky is not added). Canon 6D camera, Nikon 14-24 mm lens at 14 mm, f 2.8, 30 sec, ISO 6400. Hope you enjoy! All comments are welcomed. Thanks! Please join me at: Website Facebook Blog

The Potholes of Escalante by Wayne Pinkston Via Flickr: Website Instagram Facebook Escalante Utah Pothole. These are giant eroded holes in the rocks and many have their own isolated landscape or ecosystem. Very fascinating! This was captured during a workshop with Royce Bair. I highly recommend his workshops. This is a reprocess. I think this is the hardest image I have ever processed. I just did not have the skill to do it adequately at the initial time, and I am not so sure that I have it now, lol. The difficulty comes from the wildly colorful sky (with bands of color and brightness, all the airglow, and all the clouds. I did several short panoramas over the pothole, and I did another 10-12 photos all from the same spot and with the same exposure factors. I was waiting for the clouds to clear, which they never did. I went back and pieced together the parts of the MW without clouds from the various frames. I “borrowed” parts of the MW and sky from the other photos I took at the same spot. The wild air glow makes it hard to know just what the sky is supposed to look like. Thanks for taking the time to look. Hope you enjoy! A big thank you to the wonderful Flickr family for all the support and encouragement! Cheers, Wayne

The Two Legged Hoodoo by Wayne Pinkston Via Flickr: Website Instagram Facebook Valley of Dreams, New Mexico. Nikon D810A camera, Nikon 14-24 mm lens, at f 2.8, 14 mm, 25 sec., and ISO 6400. There is lighting with Low Level Lighting. For a tutorial please look here: www.lowlevellighting.org For more images like this please take a look at my website here . Thanks for all the kind support! Hope you enjoy! A big thank you to the wonderful Flickr family. Cheers, Wayne

Abandoned Cathedral by Wayne Pinkston Via Flickr: Website, Instagram, Facebook Abandoned Cathedral in Madagascar. This is the shell of an old abandoned cathedral in Madagascar. This was adjacent to a girls school and the priest was very nice to let us shoot there at night. There was no electricity in this region and the red glow on the horizon originates from multiple fires. The local people burn the fields to clear them and there are always multiple fires in the distance. Also bandits steal the cattle and set the villages on fire to keep the people from chasing them. 😳😬 This is a panorama of multiple vertical images. There is a Goal Zero lantern in the bell tower and a single light panel off to the right to provide Low Level Lighting on the outside. BTW, we had 3 armed guards at all times. Thanks to WorldPix and Ryan for setting up this trip! Thanks for looking! Wayne

Thoughts about Contrast

My background is the profession of Radiology. The making of radiographs, Magnetic Resonance scans (MRI), CAT scans, Ultrasounds, etc. share a great deal with the technology of digital photographs. All are digital images, and the issues of getting quality images and good signal to noise is very similar. More signal is good, more noise is bad. More sharpness is good. Sharpness is primarily due to spacial resolution and contrast resolution.  There is one area where the emphasis is different. In MRI scanning and CT scanning we emphasize two things to make good images, spacial resolution and contrast resolution (in radiology we commonly say soft tissue resolution). Both combine to create the perception of sharpness. The spacial resolution is important in Radiology, as long as you have enough, but the size of the pixels is vastly different. For years in CT scanning and MRI scanning we used a matrix of 512 X 512 pixels, as that was all the machine were capable of. It finally advanced to 1024 X 1024 pixels and is slowly moving upwards. This gives a ONE Megapixel image!!! It is less spacial resolution than the earliest Digital Cameras!  

So how could you see or diagnose anything at such low resolutions? Well, it turns out that contrast resolution, or the ability to get contrast differences between normal and abnormal tissues was at least as important, if not more important than spacial resolution. For years most of the research went into getting better soft tissue differentation (contrast resolution) rather than spacial resolution. It was more important. 

In photography we talk a lot more about sharpness, and we usually mean spacial resolution. There is little talk about contrast resolution. Well, contrast resolution does matter. Some lens have significantly more contrast than others, but it is sometimes hard to even find this data. The perception is that they are sharper lens.

How does contrast matter in Nightscapes? Well, the sky at night has tremendous contrast between the dark sky and bright stars. Also, the contrast in the sky is typically increased even further in processing. This creates the Perception of great sharpness. So does the sky need sharpening in post processing? I would argue that the answer is no. Sharpening often makes the stars look “crispy” and harsh. In addition increasing the sharpness in Photoshop or other programs increases the noise in the image. This degrades the image. If anything, it is better to do some noise reduction and decrease the noise and perhaps soften the sky. 

The darker foregrounds are completely different.They usually have more noise and very low contrast (except for the illuminated areas). I typically select the foreground and do generous noise reduction here, and then use the Unsharp Mask in Photoshop to Increase Local Contrast. This is a bit different than regular sharpening. If you use a very high radius of 50-60, and a low amount of 10-20 (threshold of 0), you will increase local contrast and increase the Perception of sharpness, without increasing the perception of noise.

Cheers, Wayne

2015

Whispers of Long Ago: (at Utah) https://www.instagram.com/p/CJt3EORByeH/?igshid=1tsw9rot4penq

To Walk a Pale Land by Wayne Pinkston Via Flickr: Website, Instagram, Facebook To Walk A Pale Land. Part of a series from the New Mexico Badlands. This is a panorama of 9 vertical shots taken at 14 mm with a 14-24 mm lens, f/2.8, ISO 12,800. I was about 6-8 feet from the larger hoodoos on the sides, very close. There was considerable distortion in the individual photos from being so close, but the combined photos in the panorama eliminated the distortion remarkably well. People frequently ask me about nodal rails and parallax. The current versions of Lightroom and Photoshop do remarkably well at eliminating parallax error in the photos. I do have a nodal rail and take as many panoramas as I can manage, but I do not bother with the nodal rail. I do not use it, and have never had an issue with parallax preventing stitching or distorting the image. In this image I was trying it o catch the rising MW between the hoodoos. Taken in May 2018. There are no paths in the New Mexico Badlands, and multiple places you can visit. If you want guidance consider contacting Kialo Winters @chacorunner, at Navajo Tours USA, highly recommend! Thanks for all the kind support over the last year, it is much appreciated! A big thank you to the wonderful Flickr family!

In Memoriam by Wayne Pinkston Via Flickr: Website Instagram Facebook IN MEMORIAM:, THE SENTINEL: The Sentinel in Bryce Canyon National Park fell on Nov. 25. It is seen here as the lighted spire just to the right of center. This was taken several years ago in an effort to accentuate the Sentinel. The spire was along the Navajo Trail which can be seen in the lower center of the image. The Sentinel was one of the named landmarks in the park. Farewell!

Window to the World by Wayne Pinkston Via Flickr: Anasazi Part 3: Image... Your picture window is 100 feet (30 m) hight and 200 feet (60 m) wide. It looks out over a wash filled with cottonwood trees, small brush, wildflowers, and intermittenty a small stream. In the distance are ridges and hills, and beyond that is a broad plain or wash where you may grow crops in wetter times. The trail winds up the side of the ridge. The glow of cooking fires illuminates the alcove or cave with a golden glow. Above the plains you look out on a star filled sky and seasonally on the Milky Way. The night sky is woven into your life as naturally as the day. The stars and seasons flow past endlessly. We may have electric lights, TV, movies, You Tube, and Flickr :-) , but the Anasazi or Ancient Puebloans had a view to die for. Since some of the structures are defensive, they may well have died defending their home. The Anasazi or Ancient Puebloans lived in the four corners region of the Southwest USA in pre-columbian times, approximately from 700 AD to 1200 AD, abandoning the area in the 13th century, possibly because of drought. This is a panorama of the Monarch Cave Anasazi Ruins in the Comb Ridge region of SE Utah. There are 11 vertical images combined in Lightroom.. Taken with a Nikon 810A camera and a Nikon 14-24 mm lens at 14 mm, f 2.8, 30 sec., and ISO 6400. There is one very large alcove but separated into two sections. I am sitting on a 30 - 45 degree stone wall that separated the two sections. To the left is the larger section and the easiest to reach. Most of the structures there are destroyed, but there are a few low walls and many pits for grinding grain, as well as some petroglyphs and pictographs. The section to the right is harder to reach and in better condition, with several rooms and rounded walls. A wide overhang unites the two sides. The Milky Way hugs the far left edge of the sky, only partially seen. As a consolation prize, we have the Andromeda Galaxy in the left center sky, the double cluster, and several additional faint galaxies. Disclaimer: No ruins were harmed or touched in the making of this photo! Thanks for taking the time to look. Hope you enjoy! Your time, faves, and comments are much appreciated! Please join me at: Website Facebook Blog