Showing posts with label manual focus. Show all posts
Showing posts with label manual focus. Show all posts

Tuesday, December 28, 2021

Photographing fireworks on New Years in cold climates

July 4th fireworks in PhiladelphiaNew Years comes this Saturday, and with it, across much of the U.S. like across much of the globe, that means fireworks displays. In much of the U.S., Canada, Europe and Asia, that also means cold weather.

Photographing fireworks takes planning and knowledge at anytime, but cold weather makes photographing fireworks even more challenging as we have to contend with both the cold which will sap the strength strength of your battery and can cause condensation to form on and in your camera and lens. Dressing for cold weather can also make it more difficult to handle your camera.

Here are my tips for photographing fireworks in cold weather.

Tuesday, December 7, 2021

Beware: a new study shows that tobacco smoke and vaping aerosols kill eye cells

A new study shows that smoking potentially damages the eyes more than anyone thought, as smoking can kill the eye's corneal cells.

Graphic: Anatomy of the Human EyeTobacco use has been scientifically linked as a cause of heart disease, stroke, chronic pulmonary disease and lung cancer. The data on smoking and those diseases is undeniable. The deadly health effects of tobacco have been well known since 1964, when Luther L. Terry, M.D., then Surgeon General of the U.S., released the first report of the Surgeon General's Advisory Committee on Smoking and Health.

In addition to those diseases, smoking can impair human color vision acuity, an extremely serious problem for photographers and visual artists.

This past September, Scientific Reports, an online peer-reviewed journal published by Nature Portfolio, published a new study about smoking and vision. “Cigarette smoke extract and heated tobacco products promote ferritin cleavage and iron accumulation in human corneal epithelial cells,” by Wataru Otsu, PhD, DVM, et. al. from the Gifu Pharmaceutical University, Gifu, Japan. The study details the alarming problem that cigarette smoke and baked tobacco aerosols from vaping devices can kill the eye's corneal cells.

Even without this new information, for photographers and visual artists or for anyone who needs their eyes in top working order, we already knew that the effects of smoking on vision is frightening.

Wednesday, June 30, 2021

16 Easy ways to give your Independence Day fireworks photos pizzazz!

Whether using a Mirrorless camera, DSLR or Smartphone, you can make great fireworks photos, if you follow these easy to use suggestions.

Philadelphia Museum of Art, July 4th FireworksIn the U.S., Sunday is July 4, Independence Day. The nation's second president, John Adams, is in large part responsible for how it's celebrated. In his July 3, 1776 letter to Abigail, his wife, he said that the day should be celebrated “with Pomp and Parade, with Shews, Games, Guns, Bells, Bonfires and Illuminations from one End of this Continent to the other from this Time forward forever more.”

The Pennsylvania Evening Post stated that in Philadelphia on July 4, 1777, “The evening closed with the ring of bells and at night there was a grand exhibition of fireworks (which began and concluded with thirteen rockets) on the Commons and the city was beautifully illuminated.”

Fireworks are extremely bright and persist for a few seconds, typically against an almost black background. Focus and particularly the exposure settings for fireworks' photos aren't straight-forward. If you're in the U.S. this week, here are my fireworks' photography tips for digital cameras and smartphones.

Tuesday, July 2, 2019

Photographing July 4th fireworks with your camera or smartphone

Philadelphia Museum of Art, July 4th FireworksThursday is July 4, Independence Day, in the U.S. The nation's second president, John Adams, is in large part responsible for how it's celebrated. In his July 3, 1776 letter to Abigail, his wife, he said that the day should be celebrated “with Pomp and Parade, with Shews, Games, Guns, Bells, Bonfires and Illuminations from one End of this Continent to the other from this Time forward forever more.”

The Pennsylvania Evening Post stated that in Philadelphia on July 4, 1777, “The evening closed with the ring of bells and at night there was a grand exhibition of fireworks (which began and concluded with thirteen rockets) on the Commons and the city was beautifully illuminated.”

Fireworks are extremely bright and persist for a few seconds, typically against an almost black background. Focus and particularly the exposure settings for fireworks' photos aren't straight-forward. If you're traveling in the U.S. this week, here are my fireworks' photography tips for digital cameras and smartphones.

Monday, January 14, 2019

Eclipse Alert: Total lunar eclipse coming January 20/21, 2019

Super Blood Moon - Image courtesy of NASAOn Monday, January 21, 2019 from 0236 GMT until 0748 GMT there will be a total lunar eclipse. For those in the U.S., I'll translate. The lunar eclipse will run from Sunday, January 20, 2019 at 9:30pm EST until Monday, January 21, 2019 at 2:45am EST.

In North and South America, the entire eclipse will be visible from the penumbral, to partial, to full eclipse and back again. Other parts of the world will be able to see all or much of the lunar eclipse, though much of Asia and Oceania will miss it entirely.

Tuesday, December 18, 2018

What the heck is back button focus & why do I need to use it?

Nikon 51 point autofocus layout in Nikon D4 DSLRWhen most people make a photo with their camera, they aim, press the camera's shutter release button, wait for the camera to focus, then press the button the rest of the way. Whammo, the image is made.

While that's easy and direct, if you're using a DSLR (Digital Single Lens Reflex) or MILC (Mirrorless Interchangeable Lens Camera) camera, it may not be the best way to focus and shoot. Until 1989, it was the only way to activate autofocus and make a photo with an SLR (Single Lens Reflex) camera, the film based forbearer of today's DSLR and MILC cameras.

It wasn't until 1985 that autofocus was even available. That year, Minolta, having purchased Leica autofocus technology, released the first commercially successful autofocus SLR, the Maxxum 7000. Minolta configured the Maxxum autofocus system to work as most photographers know it today. Autofocus was activated by pressing the shutter release button.

Four years later, in 1989, Canon introduced back button focus. It removes the autofocus function from the shutter release button and assigns it to a button on the back of the camera. Hence the name, back button focus.

Monday, August 14, 2017

Planning to photograph the Continental U.S.' first total solar eclipse in 38 years?

Solar Eclipse, Libya 2006 - Copyright © 2006 NH53As long as a year ago, many photographers made reservations to ensure they would be in the direct path of the totality of the upcoming total solar eclipse. It takes place next Monday, August 21. The last total solar eclipse seen in the Continental U.S. occurred in 1979. Fortunately for photographers the totality of the approaching total solar eclipse will be seen in parts of fourteen states, so there are plenty of places to setup one's gear to make full eclipse images.

For those unsure of what it is, a total solar eclipse is when the disk of the moon completely blocks out the disk of the sun. This will be seen in a path across the U.S. from Oregon to South Carolina, about 70 miles wide, called the “path of totality.” Outside that “path,” those viewing the eclipse will only see a partial eclipse. The further away watchers are located from the “path,” the less sun will be hidden behind the moon.

Thursday, June 29, 2017

On July 4th, are you photographing fireworks?

Fourth of July fireworks at the Philadelphia Museum of ArtThe U.S. has celebrated its independence with fireworks in towns and cities across the nation since 1777. History tells us John Adams, second President of the U.S. is in large part responsible for the way we celebrate the Fourth of July. In his July 3, 1776 letter to his wife, Abigail, he said that the occasion should be celebrated “with Pomp and Parade, with Shews, Games, Guns, Bells, Bonfires and Illuminations from one End of this Continent to the other from this Time forward forever more.”

The first Independence Day commemoration occurred the next year in Philadelphia. The Pennsylvania Evening Post stated, “The evening closed with the ring of bells and at night there was a grand exhibition of fireworks (which began and concluded with thirteen rockets) on the Commons and the city was beautifully illuminated.”

Monday, September 7, 2015

Intro to Night Photography: Cityscapes — Focus, Noise, Exposure, Effects

Belfry and Cloth Hall, Bruges, Belgium - Copyright © 2009 NSL Photography. All Rights Reserved.At night in a city, virtually any city, the scene before you changes dramatically. In some locations the architecture and spirit of the city is merely enhanced, shown with a different, though recognizable look.

In other locations, the city at night transforms into a new place, sometimes brighter and more adventurous, sometimes more alive and mysterious.

Either way, making images of cities at night can allow you to often capture a “new city” with a different life than it has during the day. Making photos at night has its own challenges, but it's still subject to the same set of constraints as daylight photography; aperture, shutter speed and light sensitivity. The difference is, these constraints often push you and your equipment “to the edge,” compared to photographing the same city during the day.

Last week I discussed night photography trade-offs and constraints, the potential of star trails at times, and the equipment needed to produce high quality night photography in cities.

This week we'll get down to the nitty-gritty of actually making our night cityscapes. We'll talk about focus, noise and camera settings

Friday, July 3, 2015

Photograph fireworks like a professional

4th of July, Philadelphia, PAThis week in the United States we'll celebrate our nation's birth. In Philadelphia, America’s birthplace and it's first capital, that means after a concert at the foot of the Philadelphia Museum of Art, with more than a half million people in attendance, all will also enjoy one of the largest, most spectacular fireworks displays in the nation, with many more watching on television.

If you're in Philadelphia, look for me shooting the festivities and fireworks, just southeast of the Philadelphia Museum of Art.

Here are some of my tips so you can photograph the fireworks near you, like a pro, using your digital camera:

Friday, July 4, 2014

It's US Independence Day: Time to celebrate and photograph spectacular fireworks

Fireworks at the Philadelphia Museum of ArtToday, in the United States we'll celebrate our nation's birth. In Philadelphia, America’s birthplace and it's first capital, that means the annual “Philly 4th of July Jam and Grand Finale Fireworks” held at the foot of the Philadelphia Museum of Art tonight, where more than a half million Philadelphians and visitors will enjoy one of the country's best Independence Day concerts. This year it will star The Roots, Ed Sheeran, Nicki Minaj, Jennifer Hudson, Aloe Blacc, Ariana Grande and Vicci Martinez performing live, with actor and comedian Marlon Wayans serving as host, followed by one of the largest, most spectacular fireworks displays in the nation.

I'll be there. If you're there too, look for me south of the Art Museum.

This year I'm going to continue experimenting while photographing the fireworks. I'm going to use a variety of neutral density filters to enable me to use longer exposures, and capture more fireworks' bursts in my images. I'll be experimenting with neutral density filters which add 1, 2, or 3 f/stops to my exposure. I'll explain below what that means in terms of shutter times.

Monday, February 17, 2014

Understanding and Achieving Image Focus and Sharpness: Part IV

Nikon 51 point Autofocus System layout in the Nikon D4 DSLR, photo courtesy of Nikon CorporationImage sharpness depends on multiple factors including focus.
While it's true an image can't be sharp unless the subject is in focus, the converse is not necessarily true, that an image which is in focus, will necessarily be sharp. Image sharpness is fundamentally controlled by focus, but there are other important factors which enable in-focus images to be sharp.

In Part I we looked at how modern digital cameras autofocus (AF), and what factors influence AF systems' ability to focus quickly and accurately.

In Part II, we discussed choosing the best focus mode for a particular subject, manual or autofocus, or using them together, as well as single versus continuous focus, all to achieve a solid focus for a variety of situations common to travel photographers.

In Part III, we got to the nitty-gritty of using autofocus and manual focus, including looking at the different AF area and tracking modes, and focus locking methods.

In Part IV, below, we discuss photographer focus technique, and other factors which enable photographers to make sharp images.

Monday, January 20, 2014

Understanding and Achieving Image Focus and Sharpness: Part III

Nikon 51 point Autofocus System layout in the Nikon D4 DSLR, photo courtesy of Nikon CorporationImage sharpness depends on multiple factors including focus.

While it's true an image can't be sharp unless the subject is in focus, the converse is not necessarily true, that an image which is in focus, will necessarily be sharp. Image sharpness is fundamentally controlled by focus, but there are other important factors which enable in-focus images to be sharp.

In Part I we looked at how modern digital cameras autofocus (AF), and what factors influence AF systems' ability to focus quickly and accurately. In Part II, we discussed choosing the best focus mode for a particular subject, manual or autofocus, or using them together, as well as single versus continuous focus, all to achieve a solid focus for a variety of situations common to travel photographers.

In Part III, below, we'll get to the nitty-gritty of using autofocus and manual focus, including looking at the different AF area and tracking modes, and focus locking methods.

Sunday, June 30, 2013

Traveling in the US: July 4th, and its fireworks are just days away

Fireworks at the Philadelphia Museum of ArtNext week, in the United States we'll celebrate our nation's birth. In Philadelphia, America’s birthplace and it's first capital, that means after a concert at the foot of the Philadelphia Museum of Art, more than a half million people will enjoy one of the largest, most spectacular fireworks displays in the nation.

I'll be there. If you're there too, look for me south of the Art Museum.

This year I'm going to be experimenting while photographing the fireworks at the Art Museum. I'm going to use some neutral density filters to enable me to use longer exposures, enabling me to capture more fireworks' bursts in my images. I'll be experimenting with neutral density filters which add 1, 2, or 3 f/stops to my exposure. I'll explain below what that means in terms of shutter times.

Sunday, July 1, 2012

It's July 4th, and that means photographing fireworks

Fireworks at the Philadelphia Museum of ArtWednesday, we in the United States celebrate our nation's birth. In Philadelphia, America’s birthplace and the nation's first capital, that means after a concert at the foot of the Philadelphia Museum of Art, more than 500,000 people will enjoy one of the largest and most spectacular fireworks displays in the nation.

I'll be there. If you're there too, look for me south of the Art Museum.

Here are my updated tips for photographing fireworks using your digital camera:

Thursday, December 29, 2011

Shooting new year's fireworks in frigid climates

Fireworks in PhiladelphiaIn Frostbite Falls they love their cold winters. Rocky and Bullwinkle never miss their cold weather new year's fireworks shows, but they recognize that there are special problems taking fireworks photos when it's below freezing.

For new year's fireworks in frigid climates you have to combine good practices for cold weather photography, with those for night photography, and the special things necessary to capture fireworks, to be successful. Don't be intimidated if you don't have a DSLR. I've seen many wonderful firework's photos taken with quality digital point and shoot cameras.

Wednesday, June 30, 2010

It's July 4th...time for the fireworks challenge.

July 4th fireworks in PhiladelphiaOn Sunday, we in the US celebrate the birth of our nation. If you've traveled to Philadelphia, the nation's first capital and America’s birthplace, immediately after the Life, Liberty & You Concert in front of the steps (Some call them the “Rocky” steps from the Rocky movies in which the fictional character, Rocky Balboa runs up the steps.) to the Philadelphia Museum of Art, more than 500,000 people will enjoy one of the largest and most spectacular fireworks displays in the nation.

That’s my segue for my tips for photographing fireworks. Here’s what you need to do to capture them this July 4th.

Monday, December 28, 2009

Photographing fireworks in winter weather

July 4th fireworks in PhiladelphiaAs Thursday night becomes Friday morning this week, we’ll go from New Years Eve to New Years Day. Across much of the country that means fireworks.

Photographing fireworks takes planning and knowledge at anytime, but January 1st in much of North America also means it will be cold. Cold weather offers additional challenges for fireworks photography.

Here are my tips for photographing fireworks in cold weather.

Monday, June 29, 2009

Photographing Fireworks with your Digital Camera

July 4th fireworks in PhiladelphiaOn Saturday, we in the US celebrate the birth of our nation. If you've traveled to Philadelphia, America’s birthplace, immediately after the Independence Day Concert in front of the steps to the Philadelphia Museum of Art, more than 500,000 people who will have come out to watch Sheryl Crow headline the free concert, will enjoy one of the largest and most spectacular fireworks displays in the nation.

That’s my segue for my tips for photographing fireworks. Here’s what you need to do to capture them this July 4th.
  • Arrive early — Before the show, scout the location, determine from where the fireworks will be launched, and try to find an unobstructed view where you can compose your photos successfully. Consider topography, lenses, zoom capability, and how high the fireworks will go in the air.
  • Consider the location wisely — If you’ll be among lots of folks viewing the fireworks, you must choose a position which won’t have people wandering in front of the camera or accidentally kicking your equipment. Stay away from streetlamps and such, to avoid light flare, and look out for tree branches and other objects which might sneak into the photos.
  • Always use a tripod — Fireworks photography requires long exposures to capture the light trails and full bursts together in a photo. Long exposure times require camera support to ensure sharp exposures, regardless of what camera you’re using, so use a tripod appropriate for your equipment. Don’t have a tripod? If you must, place your camera on a makeshift solid platform, such as a fence post, a railing, or lean against wall.
  • Use a remote shutter release — If you can, use a remote shutter release to increase your camera’s stability. That way you won’t have to touch your camera, shaking it, to snap the photos.
  • Bring extra batteries — It’s always good to be prepared in case your battery(s) give out during the display.
  • July 4th fireworks in PhiladelphiaBring a flashlight — You’re going to be shooting in the dark. A small flashlight will enable you to see your camera’s controls and settings.
  • Bring extra memory cards — I try to take photos of almost every fireworks burst. So my excitement at the beginning of the show doesn’t fill all my memory cards before the grand finale, I have plenty of them with me.
  • Use manual focus — The fireworks, presumably several hundred yards/meters away, will be difficult to focus on due to the darkness, so if you can, use manual focus and set your lens for infinity. Digital Point and Shoot cameras generally don't have a manual focus mode. Set your Point and Shoot to landscape mode, if it has one, as a “work around.” It's essentially the same as setting a DSLR to infinity.
  • Use the Highest Quality for your photo — I shoot fireworks exclusively in RAW format. If you take your photos in JPG, chose the best quality and the largest size (least compression). This is especially important for fireworks photographs because JPG compression artifacts are often created when the photograph has a high range of luminance and color contrast, like the bright colored light of fireworks bursting against a black sky.
  • Reduce noise in your photos — Long exposures and high ISO settings, can cause noise in your digital photographs. Noise (colored pixel artifacts) will mostly be visible in the very dark areas of your fireworks photos. Therefore choose low ISO for your camera (50–200).
  • It’s night, it’s dark, so you might think you need very long exposures — On the contrary, the fireworks are very bright lights, which cause many to overexpose their images. To control my exposures I use my DSLR in manual mode. I expose my photos from 1 to 4 seconds. Shorter exposures could miss the full burst and longer exposures produce washed-out images. I use my DSLR’s B (Bulb) shutter setting to control how long my shutter is open. It’s hard, but try to anticipate the beginning of the burst and open the shutter, then close it immediately after it reaches its peak. Anticipating the explosion is difficult, but not impossible. If your Point and Shoot camera doesn’t have a B setting, choose a fixed setting, such as 2 seconds. Since the shutter speed must be long enough to record the burst, control the exposure by choosing the correct aperture. Using one of the suggested apertures listed below, you can use your preview to test and then compensate the aperture accordingly.
  • The aperture you use will be based on the ISO setting — A good starting point would be ISO 100 – f/8 to f/16 or ISO 200 f/11 to f/22. Check your photos as you go along and adjust the aperture as necessary.
  • Frame your photo well — Generally a vertical format is better as the trail of a skyrocket is usually upward and not wide. For my final framing decision I will consider the crowd, my position, and how the fireworks will be deployed.
  • For my DSLR I use a normal to wide angle lens — My position relative to the fireworks bursts will determine the exact focal length I use. I frame my image so I have a good sized foreground and "head-room" above the topmost fireworks trails.
  • July 4th fireworks in PhiladelphiaGenerally you should turn off your flash —  For photographing the fireworks themselves your flash is useless, but it can be useful if you’re trying to light something in the foreground to give your photo context and extra interest.
  • Consider adding foreground subjects to your fireworks photos — Consider including a statue in the foreground, or silhouettes of the crowd, a tree or bridge or building. Note how I used the river in my photos. Watch your horizons to keep them straight, especially if you have foreground subjects in your photos.

Monday, May 18, 2009

Focus, overcoming the "fuzzies" Part 2

Filbert Street stairs, San FranciscoIn Part 1, I discussed how auto-focus works, and many of the modes of auto-focus found in today’s camera’s. In Part 2, I’ll discuss how to use auto-focus, difficult auto-focus situations, and when to manually focus your camera if it has that capability.

A not so famous photographer said in 2007, “Out of focus photographs give me a headache.”¹

Visiting the National Zoo’s panda exhibit where the glass wall separating visitors from the bears has a zillion finger prints and other dirt, travelers notice their photographs of the Pandas are out of focus, but the fingerprints on the glass are “sharp as a tack.” Seriously, wouldn’t that give you a headache?

When I first started pursuing photography seriously, auto-focus wasn’t even a dream, but today, auto-focus is the standard, and on most cameras, in most situations it does an outstanding job, more quickly, and sometimes better than photographers can do for themselves. Please note the use of the phrase, “in most situations,” and the word “sometimes” in the previous sentence.

If you want your photographs consistently to be in focus, care and thought must be given to the process.

For good auto-focus the photographer must be cognizant of how auto-focus works. For stationary subjects, the general technique used when auto-focus is difficult is called, “focus and recompose.”

LACMAUtilizing your knowledge of how auto-focus works, you allow the camera to find the ideal “focus” for your photograph, then, after locking-in the focus, compose, or rather “recompose” the image to that desired. This is only possible if your camera permits manual focus lock. Most auto-focus cameras utilize the shutter release button to lock the camera’s auto-focus when the button is pressed halfway down. As long as the button is not released, the focus will be locked, and remain locked until the photograph is taken by pressing the shutter release all the way.

We already know, to auto-focus, the camera must find the edges of your subject on which to focus by sensing the differences in the scene’s contrast. For difficult to focus stationary subjects I use single area focus and directly point to an edge or line on the subject. If that won’t work, I’ll focus on another object, equidistant to the subject of the photo. I lock the focus and compose my image, all the while holding the shutter release halfway down, then when ready, take the photo.

Sometimes, if conditions permit, I close the aperture of the lens to the extent possible to lengthen the depth of field, to better ensure good subject focus. That can have negative results, however, if it brings into focus, objects you would rather have out of focus to make your main subject stand out.

Pelican flying in the GalapagosFor subjects in motion, such as birds, I suggest using continuous group dynamic focusing. This allows the camera to use multiple focus points to auto-focus, so if the subject moves for a moment, away from the photographer’s primary focus point, it will remain in focus while the photographer pans the camera to keep composing the image as photographs are taken. This mode, allows the camera to more easily find those elusive edges for focusing on moving objects. A method to assist you focus on a moving subject, such as a bicycle rider, is to prefocus on something which is stationary and equidistant from where the rider will be going across your field of vision.

Lion at the San Diego Wild Animal ParkSometimes, the camera’s auto-focus can be fooled into focusing on the wrong subject. The National Zoo’s Panda exhibit mentioned above is a perfect example. At zoos, we want to take photos of animals behind glass or chain link fences, but our cameras often auto-focus on the glass or fence. In that situation bring your camera as close to the barrier as possible, such as in between the links of the fence. This brings the fence or wall too close for the camera to focus on it, so it ignores it, and focuses on the real subject instead.

If you have manual focus available in your camera, there are times it’s the best focus method to use. For macro or close-up shots, night photography, portraits where I generally focus on the eyes, fireworks, low light or distant landscapes, I manually focus my camera.

A final thought. For many landscapes, I concentrate my focus on the foreground of my image, and let the focus be what it may for the rest of the photo. This is the way our eyes generally focus on outdoor scenes, and is a very natural look for landscapes, where the background focus is a bit soft.

¹Completely frustrated with a lens that was “back focusing” while traveling in Los Angeles in 2007, when reviewing photos taken earlier in the day, which had to be re-taken, I said, “Out of focus photographs give me a headache.”