Category Archives: VARIOUS

Enhanced details?

Lake Jesup, Technique, VARIOUS, , ,

Have you heard about Adobe’s recent update to Lightroom?  It has a new feature called “Enhance Details”.  Adobe says it:

“approaches demosaicing in a new way to better resolve fine details and fix issues like false colors and zippering. Enhance Details uses machine learning—an extensively trained convolutional neural network (CNN)—to provide state-of-the-art quality for the images that really matter.”

You can read an explanation of what they’ve done at this link:  https://helpx.adobe.com/camera-raw/using/enhance.html.  It sounds like a another fascinating advance in computational photography.  It’s also a great example of why you should shoot in Raw mode and save your original files – so you can take advantage of future software updates.  Of course I had to try this out!

Flower & bugWildflower and bug – processed in Lightroom with Enhanced Details (click for a larger view)

I chose this flower growing in Central Winds Park, near Lake Jesup as my subject.  By the way, this is the same spot and subject as this 2015 blog post.  There’s a lot of detail in the flower and insect and I was curious about how it would look using the new processing.

I ran Enhance Details on the Raw file.  At first, I couldn’t really see any improvement.  So I opened the original and enhanced images in layers in Photoshop.  I set the layer mode to Difference and then used a levels adjustment to highlight changes.

Difference map showing pixels changed by the Enhance Details algorithm

Using this method at 300% magnification to guide me to where the changes were, I could then see them clearly.  The enhanced image was indeed more detailed than the original.  But (for this example anyway) they’re extremely subtle!  Too subtle to show up in a blog resolution image without a difference map.

I did a little more research on-line and found this blog post:  https://elialocardi.com/adobe-lightroom-camera-raw-enhance-details-review/.  It’s got several samples where the differences are more obvious.  Well worth a read.

Here are my thoughts:

  • Adobe claims a 30% increase in image quality.  I’m not sure how they derived this number, but from the examples I’ve seen the results are much more subtle than that.
  • It works better on some subject than others, e.g. night photos of cities with lights, or images with artifacts.  Improvements are much harder to see on other subjects such as my flower.
  • I didn’t see (and haven’t heard of) anyplace where it made an image worse.
  • You pay a penalty in workflow, time, and disk storage when using this.  It shouldn’t be your default processing.
  • Consider it for portfolio images, or photos that you’re printing in a large format. Don’t bother with it for images shared to the web or ones that you’re printing small.  Keep your Raw files and you can always go back later and run them through.
  • If you use Fuji cameras, try it on their X-Trans Raw files.
  • We’ll hear more soon as the photo community explores this and we see results.
  • In the future this or something like it will probably become the default demosaicing approach.  Adobe should be commended and I hope they keep developing it

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

©2019, Ed Rosack. All rights reserved

Flagler Beach Whale Quest

INSIDE FLORIDA, VARIOUS, , , , , , ,

MK and I decided to drive over to Flagler Beach last Sunday.   Several whales have been seen recently – one the week before from the pier. We knew the chance we’d spot one was very small, but it’s a pretty place for sunrise and the restaurant on the pier serves a decent breakfast!

Quilted surf sunriseQuilted surf sunrise

We set off at “o-dark-thirty” and arrived before dawn.  I spent some time making photos on the beach and when it was light enough, we went up on the pier to scout.

Under the pierUnder the pier

North Atlantic Right Whales are among the most endangered whales in the world.  There are only about 450 left.  In addition to deaths from ship strikes and fishing gear entanglement, their birth rate seems to be declining.  They migrate south from New England to the warm waters off Florida to mate and give birth.  Unfortunately, there were no new calves spotted last year during the whole 2017 – 2018 season.

Fishing trawler "Miss Hope" at daybreak near the pierFishing trawler “Miss Hope” at daybreak near the pier

So it was pretty exciting when the first calf was spotted this year! (News Journal article no longer available on line.)

Flying close to the sunFlying close to the sun

Humpback Whales are also seen off our coast, although they’re usually further out than the Right Whales, which seem to stick closer to shore.

We ate breakfast and then drove to a couple more spots on the beach.  We knew before we left that day that our chances of seeing whales were slim.  But we all know our chances are zero if we never look.  And although we came up empty, it sure was a nice morning and worth the drive.

Here’s more info on Florida whales:

I’ve collected more photos from Flagler Beach in this album on Flickr:  https://www.flickr.com/photos/edrosack/albums/72157675598379207

You can view whale photos I’ve made here:  https://www.flickr.com/search/?user_id=8231395%40N04&sort=date-taken-desc&text=whale&view_all=1

And MK has many whale images in her Flickr stream.

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

©2019, Ed Rosack. All rights reserved

In a Garden

INSIDE FLORIDA, VARIOUS, ,

Lynn added some Birds of Paradise plants to our front and back gardens a few years ago.  They’ve done well – we often have multiple flowers open at the same time.

I featured a portion of one blossom in this post from the summer of 2017.  It turns out that they bloom in the winter too!  Here are some more photos, this time  of the whole flower.

Bird of ParadiseBird of Paradise – side view, on black

The Bird of Paradise (Strelitzia reginae) is also known at the Crane Flower because it resembles the head and beak of a colorful exotic bird.

Bird of ParadiseBird of Paradise – from above

They’re indigenous to South Africa and enjoy full sun and warm temperatures like we have here in Central Florida.

Bird of ParadiseBird of Paradise – side view, on white

In their natural habitat, they’re pollinated by Sunbirds, not insects.  The weight of the bird standing on the flower releases pollen onto the bird’s chest or feet, which is deposited on the next flower it visits.

They make lovely additions to our Florida garden, and lovely photography subjects too.  I made these images in the early morning before the light got harsh.  Lynn held black or white material behind them for me.  I like the one on black the best.  How about you?

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

©2019, Ed Rosack. All rights reserved

Long(er) cruise exposures

Cruise Ships, Technique, ,

I thought you might be interested in a photo technique that I used on our recent cruise. Here’s an example image:

Journey's End

Journey’s End. (eq. FOV: 26mm, f/4.5, .8 sec @ ISO 1250)

In low light situations, I wanted the ship sharp in the foreground, and nearby water showing motion blur. I also wanted features on the horizon to be sharp (with no motion blur).

You can see the settings I used in the captions. The secret is to use a wide-angle lens, and keep your shutter speed fast enough so that the ship’s motion doesn’t result in blurred features on the horizon, but long enough so that the close by water shows some motion blur. For this image, a little less than a second worked out. Here’s another example (that was in last week’s blog too):

Approaching the Cayman Islands

Approaching the Cayman Islands. (eq. FOV: 26mm, f/4, 2 sec @ ISO 200)

Here are the steps to try this yourself:

  • Go on a cruise!
  • Choose an aperture that gives you the depth of field you want (e.g. sharp focus from foreground to horizon).  My Olympus 12-100 f/4 lens is sharp and has sufficient depth of field used wide open.
  • Choose an ISO value that results in the shutter speed you want (between 1/2 and 2 seconds).  With my micro 4/3 cameras, I’m conservative with ISO, but I’ll use up to 3200 if pressed – even for landscape shots.
  • Use your camera’s built-in image stabilization (or mount your camera on a tripod) to stabilize it on the ship.  Since my setup has the Olympus dual-IS capability, I didn’t use a tripod.  Instead, I braced myself against the ship and  hand-held these.
  • Make several exposures and check for sharpness. Since the ship is moving relative to the horizon, this setup is different from a normal dry-land photo.  To keep the horizon sharp, you’ll have to either time the ship’s motion and expose when it’s minimized (difficult), or make multiple frames and pick ones where the horizon features are sharp (easier).  I was able to get sharp images with exposures as long as 2 seconds, but I made multiple frames for insurance.

Here’s one more photo.  The light was brighter in this one, so I couldn’t get much blur in the water:

Dusk at seaDusk at sea. (eq. FOV: 24mm, f/4, 1/40sec @ ISO 200)

So that’s it.  A fun technique that will give you some nice “cruisey” images.  If you try this, let me know how it works for you.

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

©2018, Ed Rosack. All rights reserved

Caribbean Voyage

Cruise Ships, , , , , , ,

Lynn and I returned a week ago from a Caribbean cruise on the Holland America MS Oosterdam where we met up with her brother Art and his wife Michele.  Since we’ve been back we’ve had Mike, Sara, Calvin, and Avon in town for the holidays (and MaryKate – yay family!!!).  Anyway, I don’t have a lot of spare time for writing this week, so  I think you’ll just have to make do with some photos and captions from our cruise.  I hope you enjoy them!

Inviting!Inviting!  – This scene is from the beach on Half Moon Cay (Holland America’s private island).  Lynn and I both enjoyed the sun, some swimming and conversations with Art and Michelle.

Make it a double...Make it a double.  – There were other things to do on the island too!

Clouds over CubaClouds over Cuba – We haven’t ever been to Cuba and this is as close as we got on this cruise.  This photo is from six miles east of the Punta Maisi Lighthouse.  I wish it had been clearer and closer!

Clouds in the valleyClouds in the valley – I spotted this low cloud bank as we arrived in Montego Bay Jamaica and rushed to make several images.

Masked Booby in flightMasked Booby in flight – Different people on (and off) the ship saw a variety of wildlife.  I enjoyed photographing the Masked and Brown Boobies that followed us for a while.

Approachig the Cayman IslandsApproaching the Cayman Islands – We were scheduled to stop in Grand Cayman, but the seas were too rough for the tenders to operate.  The captain ended up skipping that port call and moving on early to the next one.

Cozumel at nightCozumel at night. – I had hoped to get many more images in Cozumel, but the photography tour we’d signed up for was canceled (due to lack of interest!).   I like this photo of the city after dark.

It was an enjoyable, relaxing trip.  You can see a few more photos in this album on Flikr.  And you can read other cruising blog posts at this link.

We’re having a wonderful time with family visits for the holidays – I hope you are too!.

Thanks for stopping by my blog.  Remember to make some family portraits while you have a chance!  Merry Christmas and Happy Holidays to all!

©2018, Ed Rosack. All rights reserved

Merritt Island Postcard

Merritt Island NWR, Postcards, ,

Hello faithful readers!  This is the next entry in the blog category called “Postcards” where  I occasionally post photos of Central Florida scenes – similar to a postcard.

I’m using the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license for these instead of “All rights reserved”, so you’re welcome to download these at full resolution for your personal use.   Please visit this page to see details and restrictions that apply:  https://creativecommons.org/licenses/by-nc-sa/4.0/.

It’s easy to find these using the “Places / Categories” pulldown menu over on the right side of the blog and selecting “Postcards”.  If you’re viewing the site on a phone, you might not see that menu – if so, just type “postcards” into the search box.

I made this image at Merritt Island National Wildlife Refuge.  There was a slight drizzle where I was standing, and rain drops ruined several of my frames. This one must have been right after I cleaned the lens.  For more info, please see this post:  https://edrosack.com/2015/10/17/photographing-florida-weather/

Weather over the Water
Merritt Island National Wildlife Refuge

To download, just click the image to go to the source and then right-click to download it.  I hope you like it!

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

©2018, Ed Rosack. Creative Commons, Attribution-NonCommercial-ShareAlike 4.0 International license

 

Computational Photography at KSC

Cameras and Photography, INSIDE FLORIDA, Kennedy Space Center, , , ,

You may know that I’m very interested in computational photography (image capture and processing techniques that use computer processing instead of / or in addition to optical processes). My last post on this was about a year ago (https://edrosack.com/2017/11/26/more-computational-photography/), and things are still changing very fast!

Lynn and I went over to Kennedy Space Center a few weeks ago with MaryKate and our nephew Ted.  I thought I’d try out the new iPhone XS and use some of the resulting photos as examples to discuss updated capabilities.  So this post isn’t really about KSC – if you’re not interested in computational photography, feel free to just look at the photos or go on to something else.  Or if you’d like to see some other posts about KSC, please look at the links   on this search page:  https://edrosack.com/?s=Kennedy+space+center.

Mercury-Atlas rocketMercury-Atlas rocket: John Glenn became the first American to orbit the Earth on February 20, 1962 when he launched in his Friendship 7 Mercury spacecraft on an Atlas rocket.  Smart HDR  mode, ISO 25, f/1.8, 1/22000 sec

In this first photo, I deliberately shot into the sun.   I wanted to see how it handles very high contrast situations.  I have the camera’s “Smart HDR” mode enabled in settings and I used the Lightroom CC iPhone app to shoot in RAW mode.  The file it generates is a .dng file that includes the Smart HDR processing.  I waited for the photos to sync to my desktop computer and processed them there.  I think the colors and exposure in both the sky and shadows look excellent.  I’m amazed that even the writing on the capsule in the shadows looks good.

Here’s another example that shows the amount of flexibility and recoverable detail that’s present in these RAW files.  This next image is the default capture with no editing.  You can see that with even with Smart HDR on, the extreme contrast causes loss of detail in the highlights and shadows.

This next one is the same image after editing the RAW file – there’s much more of the scene visible in this version.  In situations such as this, the secret is to shoot and process RAW files!

Here’s what Apple says about Smart HDR:

Leveraging multiple technologies — like faster sensors, an enhanced ISP, and advanced algorithms — Smart HDR brings more highlight and shadow detail to your photos.” Apple

I’d say it does that!

I’d also like to comment on the enhanced bokeh effects (blur produced in the out-of-focus parts of an image) and adjustable depth of field.  DPReview has a good article comparing iPhone bokeh to a high end portrait lens.  You can read the article yourself, but the bottom line is it compares very favorably.  And these capabilities aren’t just for people portraits.  Some examples:

Atlantis shuttle rear viewAtlantis shuttle rear view.  iPhone XS rear camera, Portrait mode, ISO 640, f/2.4, 1/30 sec

Shuttle robot arm close upShuttle robot arm close up.  iPhone XS rear camera, Portrait mode, ISO 640, f/2.4, 1/30 sec

In these images, I adjusted the simulated aperture after the images were taken to focus viewers’ eyes on the subjects.  It’s very easy to vary the amount of blur in the background to get the effect I wanted.  I’ve also used the “portrait mode” for actual portraits, and while it’s improved from earlier versions, you can still see issues if you look for them.  For example, the depth map and processing has occasional (but fewer?) problems with stray hair around faces (blurs them when they should be sharp).

I use an iPhone, but Android users also benefit from developments in computational photography.   For instance the Pixel 3 phone has a “Night Sight” feature that is reportedly amazing.  See this article for details:  https://www.engadget.com/2018/11/14/google-pixel-night-sight-launch-sample-photos-comparison/

I hope Apple can add a similar algorithm!

Should you give away your non-phone cameras?  No, not yet.  Phones are still at a disadvantage in some ways:  Lens selection and sensor size are two important ones.  And the interfaces on dedicated cameras are better and allow quicker control.  But in some (many?) cases, your phone is an excellent photo (and video!) tool.  And they’re going to get better.  Just make sure you’re up to date on how to use the latest functions.

You can read more about this at the Apple iPhone XS Camera specifications web page.

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

©2018, Ed Rosack. All rights reserved

News Flash!

Alaska, Hawaii, VARIOUS, , ,

The Pacific Whale Foundation is holding a charity auction ending very soon on Monday, November 11, 2018.  They have over 100 donated items up for bid (at this link).

As readers of the Central Florida Photo Ops blog, you might recognize two of the items. MK and I have each contributed one of our whale photos as an 11×14 inch modern metal print with float mount from mpix.com.

MK’s photo was featured on the blog in February 2018 ( https://edrosack.com/2018/02/24/majestic-maui-migration/).

Humpback Whale Spy Hopping

Humpback Whale “Spy Hopping”

You can see the auction listing at this link:  https://www.biddingowl.com/Auction/item-detail.cfm?auctionID=3324&ItemID=606667&viewType=1&style=46&font=1&catName=Art

My photo is from way back in September of 2009 (https://edrosack.com/2009/09/20/north-to-alaska-ch-1-intro-and-wildlife/).

Breaching humpback whale near JuneauBreaching humpback whale near Juneau

And you can see this auction here:  https://www.biddingowl.com/Auction/item-detail.cfm?auctionID=3324&ItemID=606672&viewType=1&style=46&font=1&catName=Art

Pacific Whale Foundation is a 501(c)(3) IRS tax-exempt charitable organization dedicated to protecting our oceans through science and advocacy.  MK and I both strongly believe it deserves our support.  If you get a chance, please check out the auctions and consider bidding on these two prints to help out this worthy cause!

Thank you!!!

©2018, MK Rosack and Ed Rosack. All rights reserved

Veterans Day 2018

Pennsylvania, VARIOUS, , ,

Lynn and I were able to visit Gettysburg for a short time on our way home from  Pennsylvania last July.  It was a bright and sunny day, but you can’t help but feel somber  thinking about what occurred there.  Over a brutal three-day battle, the two sides suffered more than 46,000 casualties and it’s said Gettysburg marked the turning point of the Civil War.

Field of battleThis field of battle is quiet now.  Near the site of Lincoln’s address, Gettysburg National Military Park

Shortly after the battle, Abraham Lincoln delivered the  Gettysburg Address.  His closing words are especially appropriate on Veterans Day and every day:

"... that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion—that we here highly resolve that these dead shall not have died in vain—that this nation, under God, shall have a new birth of freedom—and that government of the people, by the people, for the people, shall not perish from the earth."

Every year in the United States, we pause on the 11th of November to honor the service and sacrifice of all men and women who answer the call. To our veterans and to those serving today – you have our deepest gratitude. We honor you for your service and sacrifices.

Gettysburg“Army of the Potomac, Second Corps, Artillery Brigade, Battery I First U.S. Artillery”

Especially in today’s world, those who choose to volunteer for the military endure long periods far from home and loved ones.  They live in conditions without the comforts that we take for granted.  They face danger and conquer fear to protect our freedom and way of life.  In far too many cases, they give their all – sacrificing life and limb.  We owe them.

Some previous Veterans Day related posts:

Thanks to all of you for stopping by and reading my blog.  Now – go out and thank a veteran!

©2018, Ed Rosack. All rights reserved

Lessons from a photogenic place (repost)

Marineland Beach, Repost, Technique, ,

Good morning!  We were traveling last weekend and I started coming down with a cold on the flight back.  So I haven’t been out much since and I don’t have any new material for you.  Instead, I’ll repost this write-up from back in April, 2014 – it’s one of my favorites.  And it reminds me I need to go back over there and see what’s changed!  You can also look at this post for more info on the location:  https://edrosack.com/2014/01/04/marineland-beach/

There were a few lights in the parking lot way back behind the sand dunes and the clouds were thick and low, making it so very dark on Marineland Beach south of St. Augustine, Florida that my first few exposures didn’t even register on the sensor. I kept raising exposure times and ISO until I was able to capture this:

99 seconds in the dark
99 seconds in the dark – ISO 400, 99 seconds @ f/8; Marineland Beach, about 45 minutes before sunrise.

It sure didn’t look this way to my eyes.  I couldn’t see much at all and had to use my head lamp to compose and focus.

When I got home and processed the photos, they reminded me of some things that might be useful to others.

Pre-visualize before, during, and after you press the shutter

You should always try to pre-visualize the photo you’re making before you compose and shoot – and it’s a delightful feeling when the image turns out just like you imagined.  But this is often harder than it sounds.  Especially if you can’t see what you’re photographing.  There’s nothing wrong with adjusting your vision as you go.  This is a wonderful advantage of digital cameras that we’d be foolish to ignore.  Check your results on the LCD during the shoot and adapt as necessary.  In this case, I knew exactly what I needed to change when I first looked at my (black) LCD.  I needed more exposure!

Pre visualization is great, but there’s also nothing wrong with post visualization.  What I mean is to try as many things as you can think of while you’re there and sort it out later when you get home.  Try HDR, panoramas, high tripod, low tripod, and focus stacking.  Use different  focal lengths, shutter / aperture combinations, and positions / directions.  Exploit changing weather / light as time goes on.  Capture them all and give yourself a better chance to come out with something you like.

Shutter speed

Shutter speed is a critical variable when photographing moving water.  The 99 second exposure above gave me very smooth and milky looking water, nicely outlining the rocks.  A 1/1000th second (or faster) exposure can freeze drops of water.  In between, you can find other speeds that look very different from the extremes.  Capture the scene with different shutter speeds when possible.  In this 1 second exposure, I like the added interest from the flow patterns in the water.

Marineland Beach and cochina rocks
Marineland Beach and coquina rocks – ISO 100, 1 second @ f/4 with 8 2/3 stop neutral density filter, ~30 minutes after sunrise.

High Dynamic Range (HDR) processing and ghost removal

There are so many controls and sliders in HDR software that it’s hard to know which ones to change.  Most HDR software has an option for removing “ghosts” (differences between multiple frames for anything moving in the image) and I think it’s a critical setting.  HDR Efex allows me to select the baseline frame I want to use as well as the amount of ghost removal to apply.  I like to experiment with these and select the combination that looks best.  In the image below, there was only one  setting that showed the breaking wave. And I think the wave definitely adds to the image.

Golden rocks and sand
Golden rocks and sand – 5 image bracket (-4 to +4 stops), almost an hour after sunrise.

Don’t leave too soon

I made these three images (and more!) over a period of 90 minutes.  The changing light provided different looks and opportunities to photograph this place.  It’s worth getting there early and staying for a while.

Don’t get overwhelmed

When you visit a beautiful place, especially for the first time – it’s easy to be overwhelmed and forget about everything except pressing the shutter button.  It helps to visit multiple times. The first time, it’s hard to see all the possible compositions until you get over the novelty and excitement. When you can relax and enjoy the experience you can open your mind and get in the zone.  Then you’ll make images you’ll be happy to share with others.

You can see more of my photos from Marineland in this set on Flickr.

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

©2014 and 2018, Ed Rosack. All rights reserved.