Hooked On Light

Catching light and dragging it, kicking and screaming, into the camera

Thursday, January 1, 2009

January 2009 PhotoChallenge

47/52:1/31 BurningTrevor Carpenter over at PhotoChallenge.org runs bi-monthly photo-taking challenges. The idea of each challenge is to make, process and upload a photo a day for a month, all related in some way to the month's topic. Some of the past topics have included colors, lamps, portraits and people at work. I have been involved in some of the challenges but not others, typically based on interest in the subject and time requirements.

This month's challenge, which I'm going to take on, is to do a self-portrait a day. I started off about 14 months ago on a weekly self-portrait project that I kind of fizzled out on about 10 months into it. Hopefully, I'll be able to use this month to jump start the finishing off of the other project.

As I was thinking about doing this month's challenge, it occurred to me that more structure would make things a bit easier day to day. I was reminded of the Colors challenge last year where each week had a different color. At first I considered having weekly sub-topics. But then I thought that might get a bit boring day to day and would still only give me 24 hours to come up with a new concept in the same genre. So, I have rotated the matrix and chosen daily sub-topics that repeat week to week. They are:
  • Sunday: Surreal
  • Monday: Body parts
  • Tuesday: High key
  • Wednesday: Environmental
  • Thursday: Low key
  • Friday: Unusual pose
  • Saturday: Dramatic lighting

Come on and join the challenge!

Tuesday, December 16, 2008

Photowalking Utah: Temple Square

Temple Square 2
Temple Square 2
Originally uploaded by hpebley3
It's time again for our 2nd "Christmas Lights at Temple Square" walk and last event for this year. This time we're going to try something a little bit different. We're meeting at the City library on 4th South for a mini-clinic on low-light photography. Then we'll take the train up to Temple Square to put into practice what we've learned. (The train ride from the Library up to Temple Square is free.) You are welcome to come to one or both parts as time allows.

The date is this Thursday, December 18th. The clinic will run from 6:00pm to 7:00pm and be in Conference Room A, located on the lower level beneath the library foyer. It's accessible using the foyer staircase (down the stairs and to the left) or using the elevator next to the auditorium. The practical part will be from 7:30pm to 9:00pm.

Sunset is at 5:01pm that day, so if you want sunset and twilight shots, you might want to head down there early for a pre-clinic warm-up walk. You'll probably run into some others doing the same thing.

Here's the official announcement and here's the Flickr discussion. Please add a note to the discussion so we can get a head count for the room.

Monday, December 15, 2008

Astronomy Safari

Star trails
Star trails
Originally uploaded by hpebley3

The December Utah Photo Safari meet will be this Wednesday, December 17th. Starting at 6:30pm, we're going to have a short course in astro-photography. We're meeting in front of the physics building in President's Circle at the University of Utah (125 S. 1400 E. Salt Lake City, UT 84112). From there we're going to the outdoor observatory.

Since we'll be outside, be sure to dress appropriately: gloves, jacket, hats, battery powered sockets; whatever you need to stay warm. Equipment-wise suggestions include tripod, long lens and a flashlight. No flashes will be allowed.

Canon owners have a special bonus: there will be telescopes available with Canon mounts to be able to get up close on some night-time sky objects.

The official announcement and discussion are on this Flickr thread.

Hope to see you there!

Friday, December 12, 2008

Photowalking Utah: Hill Air Museum

C-48 Skytrain
C-48 Skytrain
Originally uploaded by hpebley3

The next Photowalking Utah outing will convene tomorrow, Saturday, December 13th at 8:00 am at the Hill Aerospace Museum. Thirty minutes north of Salt Lake City right off I-15, this is one of the premier air museums in the United States. Cost is free, but donations are gladly accepted.

Skill level is unimportant. It doesn't matter if you shoot a digital SLR, point and shoot, film camera, camera phone, whatever. Come on out, join us and spend some time hanging out with other photographers having a good time.

The original announcement is on the Photowalking Utah website and discussion is in this thread.

Hope to see you there!

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Wednesday, December 3, 2008

Metering: What is it? (part 1)

This is the first in a series on using the built-in meter in your camera.

What is metering?

Metering is simply the process of using a light meter to measure the brightness of a scene to determine the proper exposure. Historically it was done with separate hand-held meters that gave you a reading of the light level; the photographer would then look this up on a chart to determine the exposure settings to use and finally dial them into the camera. In time, camera manufacturers were able to shrink them down and build them into the camera's viewfinder so the photographer could more easily set the exposure while composing the image. Now, the computers in the cameras use them to automatically set the exposure for you when you're in any mode except manual.

My old Minolta had two needles on the right of the viewfinder. A thin needle moves up and down indicating the amount of light. A second, thicker needle with a circle indicates the current exposure settings. As the f/stop and shutter speed are adjusted, the second needle moves up and down. When the thin needle is centered in the larger needle's circle, you have the exposure the camera thinks is correct.

Here's the meter on the back of my digital SLR.
Metering 1

When active, there is a little pointer that runs along the bottom of the circled ruler. The center position is proper exposure and the two sides indicate under and over exposure. Adjusting the f/stop, shutter speed and ISO causes the pointer to move from one side to the other, indicating the current exposure relative to what the camera calculates as correct. There is a similar meter on the bottom of the viewfinder.

What are the various automatic modes?

Modern cameras have an array of light sensors built into them that they use to determine the light level in various parts of the image. In all the "creative" modes, the camera uses this information to get what it calculates is the best image for that mode. In these modes, the photographer has no control over how the computer interprets the information coming from the light meters.

In the semi-automatic modes of aperture and shutter priority, the meters are used by the computer to determine the part of the exposure equation that the photographer has left under its control. But, there are three options the photographer can set to give them finer control over how the computer uses the meters in these two modes. They mostly work the same way across all vendors, but they go by different names.

Manufacturer Whole frame Point mode Center-weighted
Canon Evaluative Partial Center-weighted
Nikon Matrix Spot Center-weighted
Olympus ESP Spot Center-weighted
Pentax Multi-segment Spot Center-weighted

The first mode, Whole frame in the chart above, is called something different by each manufacturer but basically works the same in all cases. It takes multiple readings across the entire image and balances the various values to get the best exposure setting. A simplistic explanation is it sets the exposure so the brightest area is not blown out while at the same time it tries to keep darker areas from being too dark. It also tries to figure out what is a neutral grey and put it in the middle between the lightest light and darkest dark.

Point mode uses just one well defined area of the sensor to take the light reading from and expose for it. This gives the photographer control over the exposure by pointing that one area at the part of the scene they want to have properly exposed and locking in the exposure. Then they can recompose the image and click the shutter. For Canon in Partial metering mode, this well defined area of the screen is always the center of the viewfinder. For the other manufacturers with their Spot metering modes, this well defined area is the focus point that is used. This keeps you from having to use exposure lock if the focus point is correct.

In Center-weighted mode, the center of the screen is primarily used to compute the exposure with areas surrounding the center given secondary importance. The outside edges are ignored. This is frequently used in portrait photography where the person in the center is most important, but the area immediately around them also needs to be taken into consideration and the area on the outside is unimportant.

The next article will show when and how you can use these different modes. To be notified when it's published, be sure to subscribe to either the RSS feed, the e-mail list or follow the Twitter feed.

Wednesday, November 12, 2008

Utah Photo Safari: Scavenger hunt

This month's Photo Safari is a scavenger hunt! We're meeting in the Salt Lake City Public Library atrium located at 400 South and 300 East on Saturday, November 15th at 1pm. We'll form up into teams, get our assignments then split up, find pictures and collect our points.

Photo passes for the Library have been pre-arranged.

At 5pm we'll meet at Charlie Chow's across the street from the library for dinner and a review of pictures and points.

Hope to see you there!

Tuesday, November 4, 2008

Light: Science and Magic

Light: Science and Magic
I admittedly haven't read a lot of books on photography, but I do frequently read technology books, and Light: Science and Magic is one of the best I have read. Many challenges arise for technical books: keep the reader engaged, don't write a dry treatise, maintain balance between too basic and too advanced and include all the relevant points so the reader can follow the train of thought. The authors manage do all this and impart a great deal of knowledge on how light works in making pictures.

I appreciate their approach of presenting a problematic situation and then giving principles of how to solve the problems encountered. They don't give a cookbook recipe but rather go into details about what the challenge is and explain how to overcome it with both positive and negative examples.

The situations presented tend towards product shots such as might be found in sales catalogs, but this is in no way a limitation. The authors simply use this context to present principles of lighting that are applicable to any type of subject. This gives the advantage of a tightly controlled environment, so the reader can easily reproduce the setup to get hands-on experience and cement the lessons in their mind. The training can then be applied outside the "laboratory" in real-world situations.

In addition to writing a great book, the authors created and hang out in the Light Science and Magic Flickr group. This group is specifically for people to post images inspired by the book with explanations about how they made the image. There are also low-volume, high-quality conversations in the discussion section.

Finally, they run regular challenges based on topics covered in the book. Currently (November 2008) the third such challenge has just started. The idea of this challenge is to use a single light source to illuminate an object but also provide a graduated background, giving depth to the image. The rewards for participation is learning more about lighting with one lucky submitter being awarded a free book from Focal Press.

Tuesday, October 28, 2008

Photowalking Utah: Antelope Island

Antelope Island
Antelope Island
Originally uploaded by hpebley3

Join Photowalking Utah this Saturday, November 1st, at Antelope Island for the annual Bison round-up. Starting at 9:30, we'll be getting up close at the Bison pens where the state park ranges give them their health checkups. When we're done there, we'll head over to Garr ranch to check out the historic sheep ranch.

Pay attention to the weather and dress accordingly. Most of this will be outside.

Meet in the parking lot west of the entrance gate in Syracuse. There is an entrance fee to the park $9/per car, we can break up into groups and share rides for those interested.

9:30 am - approx 12:00 pm

Antelope Island
State Park
4528 West 1700 South
Syracuse, UT 84075

As always, skill level is unimportant. Nor does it matter if you shoot a digital SLR, point and shoot, medium format film camera, camera phone or whatever. Come on out and join us and spend some time hanging out with other photographers and having a good time.

Please post an RSVP comment if your planning to attend. Scott Smith (the organizer this month) may be able to get discount pricing into the park if we have a large group.

Sunday, October 26, 2008

Bear Lake Regional Photography Seminar

My wife and I just got back from a photography seminar put on by the local photography club up in Montpelier, Idaho. This was the first time either of us had gone to an informal seminar like this and were not quite sure what to expect. We had a great time meeting people and hearing the presenters. It was held in the Oregon Trail Center with a little over 50 attendees and 3 presenters. The organizers had been a little apprehensive since this was their first event of this type and didn't know what type of response to expect. They were very pleased with the turn out. Montpelier is in the south-eastern corner of Idaho, 25 miles from Utah and 15 miles from Montana. Given this location, most people were from the southern Idaho, north-western Montana and north-eastern Utah. My wife and I and one other attendee were from the Salt Lake City area. And there were two attendees, friends of the organizer, from California.

Sliding HannahFriday night was registration where we checked in, met the organizer Ross Walker and submitted a framed image each for the photo competition. I rarely make prints of my images and was moderately pleased with the way mine turned out. I thought Diane's was stunning. As can be seen above, it was a brightly lit yellow, orange and red flower on an almost black background. After we checked in to both the seminar and the hotel, we met up with Ann Torrence and went to the recommended spot for dinner. The food was acceptable and the company was superb.

Saturday was spent all day in three lecture sessions with a break for lunch. The first presenter was Roger Boe, a retired pediatrician who now does overseas medial missionary work. In conjunction with his charitable work, he takes the opportunity to enjoy his passion of photography in the context of other cultures. He talked about travel photography and how he believes the feel of the location is best captured when people are included in the image. He displayed and discussed a number of his own images. After that, photos submitted by the audience were displayed on the screen and we critiqued them as a group. This was an interesting exercise as there was a variety of opinion at times about what was "good" and "bad" with an image. There were times certain features some thought should be reduced and/or eliminated whereas others thought that same feature was what made the image. Just another demonstration that much of what we call beauty is in the eye of the beholder.

After lunch, the second presenter was Alan Stauffer, the owner of Alan's Photo Store in Afton, Wyoming. He presented two topics. The first was about a recent self-assigned project to get closer to his portrait subjects and presented a number of images from this work, discussing various aspects in making the photos. He mentioned there are three ways to get closer: use a long lens, physically get close with a standard or wide-angle lens or crop. On cropping, his point was with the high-megapixel count on modern SLRs, you can crop a lot and still have enough pixels to print out a reasonably sized print. (This echoed a statement made by Kenneth Linge at the September Photowalking Utah event where Kenneth showed a 42" diagonal print that was taken with a 6 megapixel camera.) He also mentioned, when shooting kids close up, if you get in obnoxiously close, to the point where they're distracted, you can then back off a bit and they'll relax and start ignoring you, giving you the opportunity to get some good candid shots. If you just get in to your desired shooting distance, they may not relax enough to get the types of shots you want.

Alan's second topic was a beginners' tutorial on Photoshop. If you knew nothing about photo editing, it probably was informative. I did hear some comments from others indicating it was new material. I consider myself at an advanced beginner or beginning intermediate level and found it very basic. In some cases, the techniques demonstrated were probably not the best way for new users; they could probably get better results easier with other methods.

The final presenter was Ann Torrence, a friend of ours writing a book on the highway US-89. She wove together details about her project with how to do a largish photo project. As she talked, she had a slide show of images from her work running behind her, punctuating the topics and providing glimpses into her passion for the highway as well as photography. One of the things I got from her presentation, which I don't think she explicitly said, was to carefully evaluate and estimate the size of your project before you start it to make sure it's not bigger than you want. Another take away, which she did mention, was to stick with it. There will be times of disappointment and feeling overwhelmed. At these junctures, take a deep breath and press on.

After a break for dinner, the photo contest was judged. It was open to all attendees and I think everyone brought something, putting close to 60 images on the wall. There was a single judge who did a fabulous job. He had a large amount of judging experience as well as a formal degree in fine arts with an emphasis on photography. For each photo, he gave a one to two minute commentary about the good in the photo as well as how it could be improved. This was as informative as any of the other presentations. It was fascinating to hear his perspective on composition, lighting, and color and how they interacted to make a strong or weak image. In the end, he choose three for awards. Mine happened to place third.

Sunday was a free form day where people could choose to do whatever they wanted. Maps were provided with interesting photo subjects in the region marked. Unfortunately, I had to catch a flight early Sunday afternoon for a professional conference starting Monday, so we had to leave early. All in all, it was a great experience and will definitely consider attending similar events in the future.

Sunday, October 12, 2008

Photowalking Utah: Gardner Villiage

Radar failure
Radar failure
Originally uploaded by hpebley3

Photowalking Utah is meeting at Gardner Village this Saturday, October 18th to photograph ghosts, witches and other tricksters. This is going to be our kid-friendliest Photowalk yet. If you have them, dress them up or hand them cameras and bring them along. We'll be meeting at Archibald’s Restaurant at 3:30 pm and wandering around until 6:00pm when it's time for dinner, meeting back at Archibald's. Here is the complete discussion.

Skill level is unimportant. Nor does it matter if you shoot a digital SLR, point and shoot, medium format film camera, camera phone or whatever. Come on out and join us and spend some time hanging out with other photographers and having a good time.