Category Archives: VARIOUS

Merry Christmas, 2016!!!

I hope that all of you have a wonderful holiday and enjoy spending time with your family and friends!

To get you in the mood, here are a few seasonal photos from my archives – I hope you enjoy them.

Santa's workshopSanta’s Workshop – In Barberville, Florida

Merry Christmas to all My Flickr friends!Merry Christmas to all  – Santa inbound through Ponce Inlet

Seasons Greetings!Seasons Greetings!

Nativity Scene – Cincinnati, Ohio

NativityOur Lladro Manger Scene

For those of you from other faiths, I sincerely hope that all of you are having a blessed time too.  We have so much to be thankful for.

I very much appreciate you stopping by my blog. Enjoy the holidays!

©2016, Ed Rosack. All rights reserved

Wouldn’t it be nice…

Lynn and I were driving back from dinner one day last week.  The sky was beautiful and I liked the way the clouds and color looked so I pulled out my iPhone and made this photo as we went across the 417 bridge over Lake Jesup.

Sunset over Lake Jessie.Sunset over Lake Jesup

This isn’t an earth shattering photo by any means, but there are things about it that are interesting.  I used the Lightroom mobile app on my phone to capture it in RAW mode.  Then I edited it (using the same app) and posted it from the car before we exited 417 a few minutes later.  When I got home, the image (captured version and edits) was already on my desktop computer.  What a frictionless experience.

Wouldn’t it be nice if we could do the same with our stand alone cameras?

Camera manufacturers are moving in this direction, but their progress seems slow.  You can connect many cameras (e.g. Olympus, Sony, Fuji, etc.) with an app on your phone and then process and post from the phone.  But it’s sometimes clumsy and not as well-integrated.  Phone manufacturers are moving toward higher quality mobile photography at a faster rate.  The 12 megapixel, RAW capture, stabilized images output from the iPhone approach (or exceed) the sensor image quality of some older DSLRs.  And RAW processing / editing on phones is really coming along.

Do you think the mobile capabilities of stand alone cameras will catch up with phones before the image quality of phones is more than good enough?  The question may already be decided.

Hmm – two blog posts in a row with nothing but iPhone photos.  What’s the world coming to?

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

©2016, Ed Rosack. All rights reserved

Reprocessing reminder

Do you have a favorite photo that you made a while ago?  Perhaps with an older camera?  If so, you may want to see what new versions of software and your revised tastes and improved skills can do differently.

I had a request for a print of this image.  It’s from way back in 2007, made with my first DSLR – a Nikon D80:

Littleton, Colo. cabinLittleton, Colo. cabin

I like this photo.  A lot, and not just because of the subject.  It reminds me of driving along the road between where my Mom used to live and my Sister’s house, and visiting them both.  It’s been on the blog before:  here and here.  If you’re interested, please take a look at these two posts to see earlier versions.

Fortunately, I was saving my digital files in RAW format even back then, so I can take full advantage of any improvements in photo software.  I decided to run this through my current imaging workflow before printing.  Using DxO Optics Pro, Photoshop, and Lightroom, I was able to reduce noise, improve shadow and highlight detail, and tweak color, contrast, and brightness.  I feel the new version is better.

Using current software on an image made with 10-year-old technology can be amazing.  I even see a spider web hanging from the near door that I never noticed before.

What do you think?  Do you ever reprocess your older images?

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

©2016, Ed Rosack. All rights reserved

Pocket Computational Photography

If you’ve followed this blog for a while, you may have seen my earlier posts on computational photography.  If not, you can review them at this link:  https://edrosack.com/?s=computational+photography.  The term refers to using software algorithms to supplement or replace optical capture processes.  Common examples are multi-frame panoramas, focus stacking, HDR processing, post capture focus, and other techniques.  You can read more about it at this link on Wikipedia:  https://en.wikipedia.org/wiki/Computational_photography

As phone capabilities increase, their computational photography power is growing.  Camera phones have long been able to do on the fly panorama and HDR capture.  And here’s an example of a new capability that arrived on the iPhone 7+.

BokehBokeh

Apple calls this “Portrait Mode”.  It’s available in Beta on the iPhone 7+ in the latest version of IOS.  Since the 7+ has two cameras separated by a small distance, it provides the info necessary to compute a “depth map” of pixels in the frame.  The software uses this to selectively blur pixels based on distance to add a “Bokeh” (shallow depth of field) effect that helps with subject isolation.  For comparison, here is the non-computed version of the image.  You can see that the background looks very different.

Original
Original

All isn’t perfect.  The algorithm has problems around small features at the boundaries.   Look closely at the next frame and you can see blurring issues at the edges of the reed.

Phone output
Phone output

The processing blurred parts of the reed that we wanted sharp.  For the first photo above – I cheated and used Photoshop to correct the problems.  Maybe in future versions the software will be better.

Here’s one more example.  This is Lynn, rocking an election day t-shirt.  First, the portrait mode version.

Lynn - original
Lynn – portrait mode

And finally, the original.  In this case, the software did much better, with no obvious blurring issues.  These two are straight out of the camera with no processing on my part.

Lynn - portrait mode
Lynn – original

It’s fascinating how photography and computers are merging.  For someone who started out programming a large room sized Univac in FORTRAN with punch cards, the power and ability that fits in my pocket is just stunning.  I’m glad to have it with me.

What can they possibly think of next?  Do you use computational photography techniques?  Do you like or hate them?

Thanks for stopping by and reading my blog. Now – go compute some images!

©2016, Ed Rosack. All rights reserved

Regarding image selection

Editors note:  Although I’m feeling much better, I’m still going to take a sick day.  I’ll repeat this post from September 2014.  If you haven’t read it before, I think it’s still very relevant and worth a look.  If you have – then I apologize for the repeat.


If you use raw format in your photography, they look different from jpg photos.  Raw format is just the data read directly off of the sensor with no processing by the camera.  Depending on how you configure your camera and software, raw image contrast and sharpening can be very low, white balance may not be optimized, and exposure is often set for capture / low noise instead of display / print.. This can make it tough to judge raw photos and decide which ones merit further processing.

When I returned from Maine and reviewed my photos, I bypassed some.  When I finished working on the ones I’d identified as “selects”, I went back and re-looked at those I’d set aside.  Some of them deserved attention.

A calm morning on Bubble Pond
A calm morning on Bubble Pond

It’s not just raw images that can be difficult to evaluate.  Infrared photos usually need processing to optimize too.

Bass Harbor Light
Bass Harbor Light

And multi image panoramas make seeing composition and field of view a challenge before the individual frames are stitched together.

Behind Sand Beach
Behind Sand Beach

I can’t tell you how to rate your images and select your best.  But what I can tell you is to be very careful not to discard something before you’re very sure that it’s not worth pursuing.  Give your photos a second chance.  Learn your software so you know how far you can go with adjustments.  And as with any thing worth pursuing, practice will make you better.

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

iPhone vs. "big" cameras?

When I’m traveling, I try to take an iPhone photo when I get to a new place.  Sometimes I forget but when I can remember, the iPhone’s GPS capability records the location for me.  Then when I’m back home, it makes it easier to map out exactly where I’ve been.

This is one of the first photo’s I made on our trip out to Utah a few weeks ago:

Cedar Breaks National Monument amphitheaterCedar Breaks National Monument amphitheater iPhone panorama

 When I posted it on Flickr, I commented “Straight out of the iPhone’s panorama mode. I’m not sure why I have all these other cameras.”  And I do like the photo.  Phone cameras do pretty well, especially in good light.  So I wondered …

When I got home and processed the rest of my photos, I took a look at some of the other iPhone images compared with similar images from my “big” cameras (interchangeable lens cameras with larger sensors).  Here’s another example:

Sunrise at Point Supreme, iPhone PanoramaSunrise at Point Supreme, iPhone version – Panorama mode

Although the light was very pretty that morning, it was also very challenging for the iPhone sensor and lens.    I’ve tried to adjust the photo to be as similar as possible to the one below.  But I can still see major differences.  I made the next photo a minute or so later and very near the same spot with an Olympus E-M5 II micro four-thirds camera and the 12 – 40 mm f/2.8 Pro zoom lens.

Sunrise at Point Supreme
Sunrise at Point Supreme – Olympus version – multi image panorama

After looking at several cases where I had similar photos, I think this example shows why we need to keep our big cameras.

  • The exposure latitude and dynamic range capability of sensors that are larger than the one in the iPhone means that the dark areas have more detail and less noise, and the bright areas are less likely to blow out.  For high contrast light (sunrise / sunset) this helps a lot.
  • The lens in the iPhone didn’t handle the flare / glare very well.
  • The resolution capabilities of phone cameras are growing.  But with careful capture, I can create much larger images with the big cameras.  For instance the last photo above is 58 megapixel. The amount of detail in a file that large is enormous compared to a phone photo.
  • Control:  For me, the big cameras beat phone cameras in flexibility / control and ergonomics.  I can easily control everything from lens choice to aperture, ISO, shutter speed, etc.  You can get apps for your phone that add better controls, but I find them inconvenient and don’t often use the ones I have.
  • Color / white balance:  The default color and white balance on the phone are very good.  But when I use the big cameras, I can shoot in RAW format, which makes adjusting white balance and color much easier in post processing.  RAW format also allows more adjustment latitude, since I’m working with a 14 bit file in RAW, instead of an 8 bit jpg file.  RAW is coming to the iPhone soon, which should help.

So there are some reasons why I think big cameras are worth the extra weight / trouble of bringing them along.  I use my phone camera to supplement them.  How about you?

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

©2016, Ed Rosack. All rights reserved.

In the yard

Good morning, good readers!

I’ve been busy recently learning all about the Raspberry Pi computer and using it on a project for our home.  It’s incredible how much capability you can buy today for $35.  Anyway, the project (especially learning to code in Python!) has left me with little time for photo excursions.  So this week I’ll have to show you some photos I managed to make from our yard.

I made this first photo standing on our front walk, just before last month’s full moon.  I like the way the sun was hitting the clouds.  It’s a single frame, handheld, and slightly underexposed to keep detail showing on the moon.

Pretty moon tonightPretty moon tonight

Lynn put a small statue of St. Francis in our front flower garden.  This brown anole likes to bask there in the morning sun.

St. Francis and the lizard 2St. Francis and the lizard

And last, an update on our backyard visitors.  The cardinal pair built a nest on our neighbor’s patio and raised one chick that’s now fledged and fully grown.

But for the last couple of weeks, we haven’t seen too many smaller birds in the yard.  Perhaps it’s due to this:

The hawk on the lamp postThe hawk on the lamp-post

I’ve seen this Red-shouldered Hawk sitting on the lamp-post on several mornings recently.  It doesn’t seem to scare the lizards, but small birds don’t like having it around.

By the way, the basics of my Raspberry Pi project are working, so I should  have more time now for photography.

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

©2016, Ed Rosack. All rights reserved.

Happy Father's Day

Yes, it’s been a horrific week here in Central Florida.  So bad that some might question celebrating a holiday so soon after these terrible events.

We should keep in mind that there is danger and evil in the world.  We should keep the victims and everyone touched by these events in our hearts and minds.  But  we should celebrate, I think    Because there is also peace and goodness in the world, and there are vastly more good people than evil ones.

So, to all Dads out there:  I hope  you have a wonderful day on Sunday and I hope you get to share it with your families.  Celebrate the good in the world and help overcome the evil.

I wonder where Dad is? Mom said he would feed us this time.I wonder where Dad is? Mom said he would feed us this time. Two young Great Egrets, waiting for their next meal at Gatorland in Orlando.

Thanks for stopping by and reading my blog.

©2016, Ed Rosack. All rights reserved.

#OrlandoStrong

#OrlandoUnited

No photo post today

We woke up this morning here in Central Florida, to news of the worst mass shooting in US history.

Please take a moment of silence and direct your thoughts and prayers to all the people killed and injured in Orlando this weekend, their relatives and friends, and the first responders and medical people helping them.

#plazalive

#PulseNightclub

Frustrating Film Failures

… Well, some film failures and a small favorable film finish.

I’m a sucker for old cameras.  I recently came across two that I ended up buying.

My "newest" cameraA Zorki 6 35mm film camera made in 1962 in the Soviet Union

This first one is a Soviet “Leica” clone I found in an antique store.  I’d heard of them before, but never held one.  It seemed to work, and since I’m a sucker – I bought it.  I got it home, put in a roll of film and tried to take a few photos.  The shutter is inconsistent and started running very slowly.  First failure 😞.   If you’re interested, there’s more info about the Zorki 6 at the Camera-wiki article at this link.

I ran across this next one at a different antique shop.  It’s from Germany in the mid 1950s, and came with a clean Zeiss Sonar 50mm f/1.5 lens.  I like the shutter speed range from 1 second to 1/1250 second (including T and B). The built-in selenium light meter still works too and no batteries are required.  I’m always a bit leery of messing with these old cameras in the store.  So I didn’t actually open it up or try to do too much investigation while there.  It also seemed to be in pretty good shape and I went ahead and bought this one too.  Yes I’m a sucker.

Zeiss Contax IIIA 35mm rangefinder film cameraZeiss Contax IIIa ‘color dial’ 35mm rangefinder film camera

I was able to find a manual and much more info about it online.  You can read the Camerapedia article at this link.  The first problem I ran into was a missing take up spool.  So I tried to use a spool from a 35mm film canister, but the film wouldn’t reliably advance.  Second failure 😞. More research turned up many used Zeiss Contax take up spools for sale, and I bought one on Ebay.  Several days later I loaded up yet another roll of film and started clicking away again.  This time the film advance worked.  I finished the roll and anxiously shifted to Cinderella photography mode (see below*).

And yeah!  Some of the frames were good.  But many had weird light leaks.    I inspected the shutter curtains carefully and saw a gap between them on one side.  When the film is wound, the gap moves across the frame and if the lens cap is off, it partially exposes and ruins the film.  Third failure 😞.

I can’t fix this.  But I bought one more roll and this time I covered the lens each time I wound the film.  And finally I was able to get some decent exposures.  Favorable Finish on the fourth roll!! 😊

Here are three frames from the camera, along with comparison digital images I made at the same time.   I think the camera works pretty well for 60 years old!

MKMK

MK in the back yard (Film is on the left, click for larger versions) –  I really like the way the Zeiss Sonar 50mm f/1.5 lens renders both the background and subject.

Pine tree at sunsetPine tree at sunset

A Pine tree at sunset – (Film is on the left, click for larger versions) – The color rendering is different, I think digital might win this one.  Different film would give different results.

In the gardenIn the garden In the garden (Film is on the top, click for larger versions) – The Caladium leaves were in the sun and the B&W film seems to have handled the highlights better.  The subject isolation in the film version is better here too.

So, can I draw any interesting conclusions from this exercise?

  • Buyer beware – 50 and 60-year-old mechanical devices may not work like new.
  • There are no  new parts for most old cameras and few people know how to work on   them.  Unless you’re willing to go to a lot of trouble / cost, they are what they are when you get them.
  • You can buy a film camera with a warranty (KEH.com does this).  It would be less frustrating.
  • Film holds up pretty well (at least at web resolutions).  I scanned these frames in with a desktop scanner and I could get better quality (at greater cost) with a professional drum scanner.  Anyway, I think current digital cameras beat film hands down for convenience and quality.
  • The “film” look can be pretty nice.  I think the film portrait of MK came out better than the digital version.  This is mostly due to the Sonar lens and 35mm film size.
  • Film cameras can be frustrating, but they are fun to play around with.  And film and old lenses definitely render scenes differently than digital cameras.
  • For me, film is definitely a hobby as opposed to something I would use all the time for my photography.
  • But film is enjoyable to play with. This Contax is usable if I’m careful and I might take it out and load it up from time to time.  It reminds me of the rangefinder that my father gave me as my first camera.

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

©2016, Ed Rosack. All rights reserved.

*Cinderella photography:  “Someday your prints will come”.