Tag Archives: reflection

Algorithmic and Computational Photography

I have a long time interest in photography and a degree in Electrical Engineering.  I’ve also worked for many years in digital design, software engineering, and system engineering.  The changes happening in photography fascinate me.  Here’s an example:

TranquilityTranquility – An exceptionally calm morning in the marsh (On Black Point Wildlife Drive in the Merritt Island National Wildlife Refuge.)

I made this image yesterday using the high-resolution mode available in the Olympus OM-D E-M5II.  It’s a two frame panorama, but this discussion applies to single frame images too.  The camera comes with a 16 Mega-Pixel sensor and can generate images 4 times larger (~64 Mega Pixels) using some very clever built-in technology and processing.  I won’t go into how it does it (if you’re curious, here’s a good explanation).  If you’re careful and the conditions are right (no motion) the results are outstanding.  I’m also seeing  lower noise and better color results compared to normal resolution images.  Heres a small crop that’ll give you an idea of the detail captured.

An exceptionally calm morning in the marsh; On Black Point Wildlife Drive in the Merritt Island National Wildlife Refuge.
A 1:1 crop from the photo above showing the detail captured

Each new model of camera adds more capability:  High Dynamic Range, Panoramas, Lens distortion / aberration correction, 3-D / post shot focusing (Lytro), face recognition, image stabilization, Live Composite, and many more algorithms are all being done now in camera.

Most of these (and more) can also be done with software on your computer or phone.  In fact, the computation capabilities inside your phone are one reason they’re replacing point and shoot cameras.  Algorithms / computation  can overcome many of the limitations of the relatively simple camera in your phone.  Browse your phone’s app store for examples of this.

Photography started as an analog activity.  Capture the light via optics, film, chemicals, and sometimes (for experts) manipulation / fine tuning of the chemical process.  Create prints with more chemistry and manipulation of light during printing.

Photography today still involves capturing light using optics.  Instead of chemistry, most people use digital sensors.  And capturing the light as digital information allows us to apply algorithms using computers in many places in the process – either in camera like the E-M5II or in post processing.

I think the pace of change in the camera industry is slowing down at least with regard to sensors.  For instance, the E-M5II sensor is said to be identical to the first model (from three years ago).  But the rate of change in algorithms and processing is speeding up.  The new model has a faster processor with added capabilities.

Where’s all this going?  I don’t really know.  As they say:  “It’s hard to make predictions, especially about the future”.  I do know it’s a very interesting time to be a photographer.  And if you’re a photographer, I don’t think you should ignore the algorithmic and computational side of things.  Some of the processing tools can provide exciting capabilities.


On a different subject, there’s a Clyde Butcher exhibition in town at the Maitland Art Center until May 16th, 2015.  If you haven’t seen it yet, I highly recommend that you go.  The subjects / compositions / technique are wonderful and the prints are large and masterfully done.  Lynn and I went last Thursday and as we were leaving, Clyde Butcher walked in.  I very much enjoyed meeting him.

He achieves beautiful results with an analog, large format, black and white approach which would be very difficult to reproduce with a digital workflow.  That won’t be true forever.  What will most likely be true forever is that his kind of artistic inspiration and results will be extremely difficult to reproduce with an algorithm.


Thanks for stopping by and reading my blog. Now – go make some photos!

©2015, Ed Rosack. All rights reserved.

Explore and discover – then react

Some photographers plan their photo ops in detail.  In many cases that’s a good approach. Portrait and wedding photography are genres that need advanced planning.  And if you’re going on a once in a lifetime trip, planning is prudent.  Other genres are more reactive (e.g. photo journalism).

I try to do research and planning if I’m going somewhere I haven’t been, but I don’t plan most of my photography.  Especially if I’ve been to a place before, my approach is to explore and discover, and then react to what I find.  Often, I end up with photos that I never imagine when I start out.  Which is loads of fun!

A few weeks ago, I went over to the Sanford Marina to make sunrise photos.  I arrived early and discovered very calm conditions in the harbor.  I reacted with this photo.  It’s nothing like the sunrise I originally went looking for.

Still water, sailboats, and starsStill water, sailboats, and stars – Very early and very calm at the Sanford marina

Last week, I took a ride here in Central Florida along Maytown Road between Osteen and Oak Hill.  It goes through some very undeveloped areas and ends at Seminole Rest, a small park in the Canaveral National Seashore.  In this case, I hadn’t really planned for any photos.  I was just driving to see what’s there.  I was glad to discover this gnarled old tree, although I wish I’d found a little better light to go with it.

Weathered TreeWeathered Tree – Seminole Rest, Canaveral National Seashore in Oak Hill, Florida

This last photo is from back in 2013.  It sat in my archives until this week when I discovered it again and processed it.  It took a while for me to complete my reaction to the scene.

Sun and shadowsSun and shadows – Long exposure under the pier at Cocoa Beach

The photo and video in last week’s post also resulted from the “explore, discover, react” approach.

So what’s the moral of this story?  I suppose it’s this:  If you approach photography like I do, you’d better be ready to react to a scene when you see it.  Know your equipment so you can capture what you need when you discover something.  Even in the dark or in rapidly changing situations.  Know your software capabilities too, so you understand what you need to capture.  Be ready for the opportunities that you find, and the ones that find you.


On a different subject, I realized after I published last week’s blog that embedded video isn’t included in the email.  The Jetpack plugin software that I use doesn’t even put in a link to it.  So if you read the blog only via email and wondered what the video was about, you can click here to view it on YouTube.   And you can always click on the title of the post inside the email to view it on the web.  Sorry for any confusion.


Thanks for stopping by and reading my blog. Now – go exploring – and make some photos!

©2015, Ed Rosack. All rights reserved.

A couple of photo hints and a Gatorland update

It’s been a while since I’ve discussed any photo techniques, so I thought I’d share two hints that you might not have tried recently.  I also wanted to let you know what’s going on at Gatorland now that breeding season is in full swing.

Photo Hints:

#1 – Focus stacking:  I’ve written about this before. You can read the posts here:

Both of those were macro-photography related.  But the technique can also be used for other situations such as landscapes.

Beneath the bridge, by the rocksBeneath the bridge, by the rocks – Parish Park in Titusville, about a half hour before sunrise

I was at Parish Park in Titusville one morning, looking for a new view point and discovered this area where I could place these rocks in the scene as a foreground for the bridge and far shore.  My problem was that without a tilt-shift lens, using the Scheimpflug principle, it’s  hard to get the entire composition in focus.

I decided to make three exposures, changing the focus point in each.  In the first, I focused on the rocks in the foreground, in the second on the nearest portion of the bridge, and the last was on the far shore.  At home, I did some initial processing (the same for all three) and brought them into Photoshop on separate layers.  Then I aligned the layers and manually blended them together using masks.  I could have used Photoshop’s focus stacking capability, but doing this myself with layers gave me more control.  The resulting depth of field is just how I wanted it.  What do you think?

#2 – Fill flash:  I often carry my flash and use it to add fill light or catch lights in eyes.  It helps and doesn’t seem to bother the animals.  I’ve also used fill flash for sunrise or sunset portraits of people.  It can do a good job of balancing the exposure of your subject against a bright background.

When I saw this Tri-colored Heron posing in the bush, I made a few photos.  But then I thought about adding flash.  When I got home, the photos with the flash looked much better.  The bright, ambient sunrise was balanced with the fill flash on the nearby bird.  There’s a better detail in the bird when I used the flash.

Early birdEarly bird – Tri-colored Heron at dawn (ISO 800, f/5.0, 1/320 sec, on camera flash in auto slow sync mode, -1 stop flash exposure compensation).

If you try this, you’ll need to practice a bit before you use it in a pressure situation.  Make sure you know how to adjust exposure compensation (on both the flash and the camera), shutter speed, and aperture to get the best results.  And if your camera has it, try enabling high-speed sync.  This lets you shoot with flash at higher shutter speeds without getting any black bands on your photos (at the expense of a lower light output).

Gatorland Update:

I went by Gatorland again last week.  The Great Egrets continue to breed and their hatched chicks are growing fast.  There are Snowy Egrets and Cormorants on eggs now and I saw  Tri-colored Herons, Anhingas, and Wood Storks gathering nesting material although I didn’t spot their nest or eggs yet.  A few cattle egrets have also arrived and are courting.  And the gators are getting more active too.

Just before I left, I spotted this large turtle there – I’ve never seen one before.  It looks quite intimidating and I wouldn’t want to be too close to it in the water.

Alligator Snapping Turtle (?)Alligator Snapping Turtle

For a better idea of what you can photograph at Gatorland, you can look through my album on Flickr.

Thanks for stopping by and reading my blog. Now – go make some photos!

©2015, Ed Rosack. All rights reserved.

One way to improve your photography

If you want to get better at photography, you can find a lot of free advice on the inter webs.  Buy a new camera or lens, use new software, travel to an exotic location, take a workshop or a course, read books, study the masters, etc.

My free advice isn’t any of the above and it won’t cost you as much money as some of those things will.  And I don’t see it come up very often on-line.  Take my advice and not only will you learn new things – you’ll be exposed to different genres of photography, and you’ll be able to practice what you’ve been exposed to.  What’s the secret?

Join your local camera club.

The weather’s been gloomy around Central Florida recently.  solid grey clouds, rain and drizzle, and not much light to make photographs with.  So I was happy that there was a Still Life Event at the Orlando Camera Club meeting last Monday.  They brought in interesting items to photograph and had tables, lighting, and backdrops to use for set up.  I brought a camera, tripod and flash (although with my tripod, I ended up not needing the flash).  It was a lot of fun to choose items and arrange compositions.  It’s something I don’t usually do – but that’s a good thing.  Here are three photos from that evening.

TelephoneTelephone

Keb Mo bluesKeb Mo blues – Playing around with compositing: I made the foreground shot of the guitar & Blues sign at the Still Life event.  I added the background photo of Keb Mo that I made at his concert in the Plaza Theater in Orlando on Feb. 1 2012. 

Wrench, bolt, and lockWrench, bolt, and lock

I belong to the Orlando Camera Club (http://orlandocameraclub.com).  I’ve also attended meetings at the Port Orange Camera Club and the Oviedo Photo Club.  Membership in any of these will benefit your photography.  Some things most clubs offer:

  • Photo competitions in different genres with feedback
  • Events (like the still life one I went to)
  • Guest speakers on many related topics
  • Workshops (free or inexpensive) about many subjects
  • Field trips to local photo ops
  • Libraries of photo books that you can borrow for free
  • And other people with similar (and diverse) interests to share your passion with

I’m sure that wherever you are, there’s a camera club that you can join too.

Here’s one other post I’ve written on still life photography, and you can see some of my other still life photographs in this set on Flickr


Update on the blog hosting change:  It does look like the transition’s been successful.  The email subscriptions seemed to go out ok last week and I haven’t received any problem reports.  One issue I’m aware of is that the move appears to have broken RSS subscriptions.  So If you’ve come here directly to find out why your Central Florida Photo Ops RSS feed isn’t working – I’m sorry.  I don’t think I can do anything about it.  You’ll have to re-subscribe.


And finally, I’m sure you heard that Leonard Nimoy passed away on Friday and will be buried today.  Of course I didn’t know him, but I felt I knew his famous Mr. Spock character that saved the day (and even the universe) so many times over the years.  May he rest in peace.


Thanks for stopping by and reading my blog. Now – go make some photos! And live long and prosper.

©2015, Ed Rosack. All rights reserved.

Two birds, a selfie, and the blog

I met Tom M., and Lee A. at Gatorland again last Thursday.  During breeding season I like to go at least once a month to keep up with the activity there.  It’s a very nice experience over time to  see different species nesting, eggs hatching, and young birds growing and fledging.  It was our coldest morning of the season so far, with temperatures a few degrees below freezing.  I know all of you that are suffering in colder climates are thinking that’s not cold – but down here we think it’s pretty chilly.

Anyway, the Great Egrets are wearing their fancy plumes and colors and looking for mates. One of the advantages of the photographer’s early entry program at Gatorland is that the light can be very nice in the morning.  It certainly was on this bird and it was displaying a bit too. I waited for the right moment, and made this image.

Displaying Egret Displaying Egret

A while ago, one of my friends on Flickr asked me about this photo of a Black-crowned Night Heron. Here’s the question and my answer:

Vicki:  “I was wondering about the heron you posted. It has only one leg. Was it missing a leg or is it the way they hold them? I spotted one near me last week and when I got the photos on the computer, I discovered it was only using one leg…even after it moved around in the tree. So I was wondering if you know if it is a normal pose for them to do that.”

Ed:  “I can’t be 100% sure since I didn’t see this heron’s other leg, but it is a typical pose to tuck one leg up against their body.”

In this new image, also of a Black Crowned Night Heron, you can see the other leg, since it’s not quite hidden in the feathers.

Black-crowned Night-Heron Juvenile Black-crowned Night-Heron Juvenile

This last photo is my latest selfie.  For several years I’ve been looking for situations like this where the geometry is right to see my reflection in the Alligator’s eye and get close enough to photograph it.  This one is a tight crop, but I think it’s my best so far!

Gator eye selfie (crop) Gator eye selfie – Not photoshop – that’s the actual reflection in its eye of me standing on the boardwalk.

 And now about the blog.  I’ve been a bit aggravated for some time with the performance of my hosting service – the load times seemed slow and  I’ve also had intermittent, unexplained  outages  So finally last week I decide to move to a managed WordPress hosting service.  It seems to be working very well so far.  This is my first post on the new system and I hope that everything works well – including the email subscription function.  I’m only telling you this in case you notice any issues.  If so, please let me know so I can work on them.

Thanks for stopping by and reading my blog. Now – go make some photos!

©2015, Ed Rosack. All rights reserved.

Around Central Florida

Here are three photos from last week that I made in and around Central Florida. First up is the Cocoa Waterfront.  I liked the early morning look of the clouds and water at River Front Park.

Calm morning on the riverfrontCalm morning on the riverfront. (Two frame vertical panorama, Infrared, B&W, 34mm eq. fl, 1/40 sec @f/5.6, ISO 200)

The morning light was also nice at Viera Wetlands, and this American Bittern posed for us in the reeds.  I’ve been lucky enough to see them there several times over the years. I’m sure they’re in spots like Merritt Island National Wildlife Refuge too, but I’ve never spotted one there.

American BitternAmerican Bittern.  (600mm, f/8, 1/640 sec, ISO 320)

Orlando Wetlands Park opened again February 1st.  It’s one of my favorite places for sunrise.  Our walk on Friday morning  was brisk and breezy, but I like the wind’s effect on the water in this photo.

Wee hour winds whisk water and reeds in the wetlandsWee hour winds whisk water and reeds in the wetlands.  (Two frame vertical panorama; 120mm; I shot the bottom frame at f/22 and ISO 50 to extend the shutter speed to 8 seconds and maximize depth of field.  I made the upper frame at f/8, .5 sec, ISO 100 to maximize sharpness)

So that’s some of what I photographed last week.  What did you shoot?  Thanks for stopping by and reading my blog. Now – go make some photos!

©2015, Ed Rosack. All rights reserved.

Merritt Island – 1/31/15

Kevin M. organized a quick trip over to Merritt Island National Wildlife Refuge last weekend and invited me to go with him and Kevin K.  We started at Space View Park, where we watched a lovely sunrise.

Dawn from Space View Park Dawn from Space View Park

Next we drove around Black Point Wildlife Drive where there were lots of birds, some wild hogs, some alligators, and lots of  photographers!   Two different ponds had concentrations of fish attracting swarms of birds (mostly Snowy Egrets).  They were flying low over the water and snatching their meals “to – go”.  This one seemed full – it stood watching the action.

Fluffy Egret Fluffy Egret

The Great Horned Owl  nest was empty this time.  We scanned the surrounding trees trying to spot the owls (like Jim Boland did on his visit) but we weren’t able to find them.

At least three Painted Buntings were hanging around near the feeder at the visitor’s center.  The light’s usually difficult there for me, but this time I managed to get a good photo of this colorful bird.  It’s exciting to see something like this in the wild.  Now’s the best time – they migrate through here in the winter.

In the bushes 

In the bushes – Painted Bunting

MINWR is a wonderful place and there’s almost always something there worth seeing.  Check it out for yourself!

Thanks for stopping by and reading my blog. Now – go make some photos!

©2015, Ed Rosack. All rights reserved.

My favorite 2014 photos

Happy New Year!  I hope that all of you, your families, and your friends have had a joyful and happy holiday season!

The beginning of the year is a good time to review results and contemplate how to improve any endeavor and photography is no exception.  I’ve put together these “Favorite photos of the year” posts since 2009.  This is a hard process for any photographer.  For me, it’s difficult to separate my opinion about a photograph from the emotional connections that I have with the subject, scene, or situation.  But making the effort is important and part of the learning process.  I don’t claim to be objective –  these are simply the photos that I like best.  Feel free to disagree, but I hope you’ll enjoy looking at the ones I’ve picked.

This year, all of my favorites were made in Florida.  I’ve listed the date and place for each and included a link to the blog post where you can find out more about the image.  You can click on the photos to go to Flickr where you can see a larger version.  Or you can click on this link to view the complete set on Flickr.

February 2, 2014 – Cocoa Beach

Let's wait a bit to set sailLet’s wait a bit to set sail

More info:  edrosack.com/2014/02/08/viera-wetlands-222014/

March 8, 2014 – Viera Wetlands

Black Skimmer in flightBlack Skimmer in flight 

More info:  edrosack.com/2014/03/09/universal-set-up/

April 6, 2014 – Marineland Beach

99 seconds in the dark99 seconds in the dark

More info:  edrosack.com/2014/04/12/lessons-from-a-photogen…

May 17, 2014 – Viera Wetlands

Marsh MoonMarsh Moon

More info:  edrosack.com/2014/02/08/viera-wetlands-222014/

May 31, 2014 – Merritt Island National Wildlife Refuge

Preening SpoonbillsPreening Spoonbills

More info:  edrosack.com/2014/06/07/merritt-island-may-31-2…

June 18 2014 – Fort Christmas

Wild OrchidsWild Orchids

More info:  edrosack.com/2014/12/13/modern-monochrome-homew…

July 19, 2014 – St. Johns River, Near Cocoa

Let's go fishing!Let’s go fishing!

More info: edrosack.com/2014/08/01/lets-go-fishing-how-i-m…

July 19, 2014 – Viera Wetlands

Wet wings and itchy backWet wings and itchy back

More info:  edrosack.com/2014/07/25/viera-wetlands-on-7-19-…

November 2, 2014 – Lake Louisa State Park

Morning mist - ColorMorning mist

More info:  edrosack.com/2014/11/09/lake-louisa-state-park-…

November 19, 2014 – Barberville Pioneer Settlement

The SchoolroomThe Schoolroom

More info:  edrosack.com/2014/11/30/pioneer-settlement-at-b…

These links will take you to Flickr where you can view sets of my favorite photos from earlier years: 200920102011, and 2012, and 2013.

I hope you’ve had a great photo 2014 too. If you send me a link or leave one in the comments, I’ll be sure to take a look at your favorites.  Thanks for stopping by and reading my blog.  Now – go make some more favorites of your own!
©2011 – 2014, Ed Rosack. All rights reserved

Birds Abound at Black Point

I spent last Wednesday morning at Merritt Island National Wildlife Refuge.  I hadn’t been in a while and I enjoyed seeing what’s going on over there.

As usual, I arrived early for a sunrise photo.  I’ve photographed from this spot on Gator Creek Road several times, but I’ve never noticed flowers blooming there before.  I think they make a nice foreground accent.

Another day beginsAnother day begins

After the sun was up, I drove around both Black Point Wildlife Drive and Gator Creek Road.  There were a tremendous number of birds around – the winter visitors are here in force!

You can get an idea of which species to expect at MINWR (and when) over at this page on ebird.  Here are the ones I recognized on my visit:  Northern Shoveler, Lesser Scaup, Hooded Merganser, Pie-billed Grebe, Wood Stork, Double Crested Cormorant, Anhinga, White Pelican, Great Blue Heron, Great Egret, Snowy Egret, Tri-colored Heron, Little Blue Heron, White Ibis, Roseate Spoonbill, Black Vulture, Turkey Vulture, Osprey, Red-shouldered Hawk, American Coot, Black-bellied Plover, Killdeer, Willet, Ring-billed Gull, Laughing Gull, Black Skimmer, Mourning Dove, Belted Kingfisher, Loggerhead Shrike, and Savannah Sparrow.  I’m sure a more experienced birder would have recognized even more.  I also saw an Alligator or two and a River Otter.

And my online blogging friend Jim Boland also spotted a Red-headed Duck there recently.

This bird was posing on a mound of seaweed next to the causeway.  I was able to crouch down and make some eye level photos with a nice out of focus background.

Black-bellied Plover Black-bellied Plover

And this Willet was hunting in the surf, also along the causeway.  The sun was coming over my shoulder and the small waves rolling in made the blue sky reflections contrast nicely with the sandy bottom showing through the water.

WilletWillet

And here’s a bonus sunrise photo – made with my long lens.  I like the group of birds flying in front of the sun in the distance.

Merritt Island MorningMerritt Island Morning – The sun rises next to NASA’s Vehicle Assembly Building at Merritt Island National Wildlife Refuge

What a nice visit to one of our Central Florida Photo Op treasures!  If you haven’t been over there recently, now is a great time of year to check it out.  You can see other photographs from MINWR in this set on Flickr, and from BPWD in this set.

Thanks for stopping by and reading my blog. Now – go make some photos!
©2014, Ed Rosack. All rights reserved.

Lake Louisa State Park – Nov. 1, 2014

Lynn and I went back to Lake Louisa State Park last weekend and spent a very relaxing couple of days.  It was a little chilly – our first Florida “cold” front rolled through while we were there and made us both appreciate the gas fireplace in the cabin.  We didn’t see as much wildlife this time, but I did enjoy making some photos.  Here’s one at sunset from just behind the cabin, looking out over Lake Dixie.  I like the way the field glows in the light coming through the trees.

Grass, trees, lake, and sun
Grass, trees, lake, and sun

The sky was very clear after the cold front, so there were no dramatic clouds to work with.  I think the low morning sun on the trees and the mist on the water  look nice in black and white.

Morning mist - B&W
Morning mist

There weren’t as many flowers blooming as there were last May.  But the few we did see were lovely.  These were along a path just off the road.

Wildflowers
Wildflowers

Lake Louisa is a wonderful, relaxing getaway in Clermont, Florida – very close to Orlando.  If you haven’t been, check it out.  My full writeup on the park is at this link and this set on Flickr has many more photos I made there.

Thanks for stopping by and reading my blog. Now, go make some photos!

©2014, Ed Rosack. All rights reserved.