Sunday, June 1, 2014

Always stay flexible

It is always a good idea to stay as flexible as possible in everything that you do. This is especially true of the creative arts, as trends change and so too do your own taste and preference to what you are creating.

This was brought home to me recently as an interesting phenomena concerning my photography "specialization". As I really like landscape style work (natural and urban) I thought it best to work towards this as my specialization - so many say to be successful you must specialize in a certain type of photography - but after a short while an odd thing occurred; I stopped taking photos. And when I did grab my camera to take any photos, it was not anything landscape themed. Instead it was to record our newest furry addition to our household - a young male rat terrier dog called Jax.

Jax the rat terrier

Other than puppy pics, the only other photos I have taken lately have been some headshots and portraits to practice techniques I've been learning from watching video classes on CreativeLive. And I can highly recommend the courses on their site.

Lisa

Above is one of my (new) lighting practice sessions consisting of a softbox to Lisa's right, just above eye level; a reflector to her left at eye level and approx. 45° to fill the shadows; a second speedlight behind her to illuminate the background. 

With all these things going on, I made the decision to drop my specialization attempts for now and "reclassify" as a generalist photographer and just shoot what appeals to me whenever I pick up my camera. Who knows, I might get really good at people photography and head that way, or I may end up shooting something completely different. At this time I couldn't really say, so until that day comes I'm just going to stay flexible.


Tuesday, April 29, 2014

Okmulgee Lake and Dripping Springs

Earlier this month I re-visited Okmulgee Lake and Dripping Springs Lake, on a nice sunny day, to explore and photograph. For anyone interested in paying it a visit, you can find it at GPS coordinates 35° 36' 01"N 96° 03' 35"W, approximately 5 miles West of Okmulgee on Hwy 56. Dripping Springs is signposted from Okmulgee Lake and is a little further to the South West.

I've visited the area a few times now but have still not ventured much further than the easily accessible parts - will need to correct that some time and really explore the hiking trails for any further vantage points and items of interest.

I was also taking this as an opportunity to test out a new polarizer filter, which I found was just a little too "deep" for my 12-24mm f/4 lens and it vignettes slightly at the 12mm end. Despite this minor inconvenience I really like the "Moose Filter" combo of polarizer and warm-up filter - just have to remember to not zoom out to 12mm!

lapping waves at Okmulgee Lake, Oklahoma

I don't know what it is really but I'm one of those that find the sound of waves lapping on the shore to be very relaxing and calming. Not that the shore here is really up for much comfort as its pretty rocky.

rocky shore and tree at Okmulgee Lake, Oklahoma

A little further to the South I found what looks to be the remains of a house. Pretty much all that remains is the foundation slab and a rock fireplace w/chimney. There is some wonderful weathering on it all and of course, its sprouted graffiti but it doesn't detract too much (I feel).

rock and stone chimney with grafifitti at Okmulgee Lake, Oklahoma

I like to make use of shallow depth of field whenever I can as I like how it pulls the subject out of the photograph. Not that I have anything against making full use of small apertures to gain maximum depth of field, just different styles for different subjects. The following selection of photographs are of the tall grasses blowing in the wind taken at different apertures and lens to cover varying depth of field effects.

windblown grass at Okmulgee Lake, Oklahoma

windblown grass at Okmulgee Lake, Oklahoma

windblown grass at Okmulgee Lake, Oklahoma

windblown grass at Okmulgee Lake, Oklahoma

windblown grass at Okmulgee Lake, Oklahoma

windblown grass at Okmulgee Lake, Oklahoma

windblown grass at Okmulgee Lake, Oklahoma

Now it was time to head on to Dripping Springs Lake. The main visitor here are out fishing for bass but it is still a great place to visit and explore, even if your interests are not in fishing.

Dripping Springs Lake, Oklahoma

A little further on to the south of this spot is a fishing dock that offers the chance to get out onto/over the water somewhat.

fishing dock at Dripping Springs Lake, Oklahoma

While it was a good subject to photograph, it was as I found out, a little too mobile to setup my tripod on to take long exposure photos. As the wind was picking up again while I was here, the dock (and end platform) was bobbing up and down pretty rhythmically on the waves.

sunken tree remains at Dripping Springs Lake, Oklahoma

I need to pay another visit to the fishing dock to try and capture a sunset over the water as the trees should give great shadows and silhouettes as the light reflects off the water. Just have to time it when there's a great sunset in the making.






New post(s) and photos coming soon

While there may be a pretty sizable gap since my last post, I haven't neglected my photography. Far from it, actually. I have ventured back to re-visit the Okmulgee Lake/Dripping Springs area (viewers of my G+ posts will have seen some photos there) and I have also been experimenting with some long exposure macro photography (again, posted on G+).

I am in the process of creating blog posts to give additional details on location, subjects and techniques so please stay tuned as they will be posted soon.

Sunday, April 6, 2014

Return to the park

As the afternoon was passing yesterday I noticed that the sky was looking photogenic, and on a whim I headed to Mohawk Park in the north of Tulsa, OK. I've visited here before and have a couple of pictures already posted on here taken there.

I seem to end up in the same general area as before but this time I spotted a small turtle on the river bank, so naturally I had to include him (her) in the shot:
small turtle at Mohawk Park, Tulsa, OK

Just a little further along the bank I found an interesting log sitting in the water, with some nice highlights - or as I found out in Lightroom, some very blown out specular highlights. I managed to tame them a bit so they don't distract too much from the image:
reflections in water at Mohawk Park, Tulsa, OK

If you ever find yourself in Tulsa, Mohawk Park is certainly worth a visit, if for nothing else than just getting away from the city and relaxing in nature.



Friday, April 4, 2014

Interesting skies

The early evening sky yesterday was definitely interesting, so much so that I grabbed my camera to get some photos. I didn't do any fancy setup or bother with any HDR brackets, instead I just set my 12-24mm lens to manual - 12mm, f/11 and prefocused to 2ft to give me hyperfocal focus from 1ft to infinity - and started shooting at ISO 100. I did step this up to ISO 200 as the light levels fell off some. I also added a -0.3EV comp to offset the contrast.

After a little post processing (levels, sharpening, noise reduction and cropping) this is what I was seeing in the sky.
storm clouds at sunset, Oklhoma

This is facing roughly South East of Glenpool, Oklahoma which is towards where there had been some storms moving through Oklahoma. This is very possibly a part of those storms, not that the Glenpool area experienced any bad weather as you can see from the blue sky above the clouds.

Tuesday, March 11, 2014

Now for some photos

In my last post I mentioned that I would share some photos from my recent testing session at Okmulgee Lake and while the IR shots were not very successful, my "normal" HDR brackets were pretty successful. And today, this is what I'm going to share here, 3 tonemaps from my HDR brackets - all shot using a Tokina 12-24mm f/4 lens.

The first photo is a great example of what's good about HDR work, the ability to record a scene closer to how our eyes actually see it. This is especially true of an interior shot with the exterior also highly visible - and capturing both the highlights and shadows that you can see detail in both.


Shooting this as a "normal" single exposure severely limits your options to either capturing the shadows and losing the highlights; or capturing the highlights and having the shadows block up and have no detail. Personally I much prefer to have both!

The next photo is an example of how you can shoot into the sun (it was about a 45 degree angle to camera left) and maintain good detail and texture to both the foreground and background. It also showed that this angle didn't cause flare down the lens, even at its wide end.


The final photo in this post is an example of shooting directly into the sun and I also included it in the shot, complete with some lens flare. I don't feel it was too excessive on the flare and doesn't distract from the photo. You the viewer may not agree but we are all entitled to our own opinions here - art is very subjective but I hope you agree with me on this one.


I also like the "starburst" on the sun from shooting at f/11. While I could have closed down to f/22 to increase the effect, I would have also introduced diffusion across the entire image, which I didn't want.

All the images were processed in Lightroom before being merged and tonemapped in Photomatix Pro, then a few finishing touches back in Lightroom before exporting as JPG's.


Monday, March 3, 2014

Camera and lens testing

The past couple of weeks has seen me in testing mode for a few different topics. The main one being my recent purchase of a used Tokina 12-24mm f/4 lens, that I wanted to fully check for functionality before the return period expired. And I’m very happy to find that everything works and the lens is now a permanent part of my photo gear.

The other testing I have been doing is with the IR photography capabilities of my cameras and lenses. For some time now I have had an interest in the look of IR photos and wanted to take another attempt at taking some myself. To this end I purchased a filter to fit my new Tokina and attached it all to my D2X - and was not too happy with the result. Guess I should have done a little on-line research first as I would have found that numerous people have flagged both the D2X and Tokina 12-24 as not recommended for IR photography.

With the D2X, Nikon did a very thorough job of designing/building it to minimize the effects of IR light on the image sensor. This is wonderful for “normal” photos and especially skin tones but not so good for my testing. It’s not that it can’t take IR photos, just that they will require much longer exposure times to produce anything usable, which in turn increases the effective noise levels on the images.

Meanwhile my older D100 seems pretty well suited to taking IR photos. My test shots with the Tokina lens were relatively free of flare in the image center - unless I had the sun in the frame, or close to the lens axis that it was able to shine into the lens. However, I did notice one anomaly between the Tokina and my Nikon 60mm Micro - after they’ve been post-processed, the images from the Tokina are predominately blue, while the Nikon retains more red to the overall image (this is after doing a blue/red channel swap; I’ll cover this later.

One of the biggest problems for IR photography is getting the exposure “right” - right being a generic term as this is subject to the personal taste and artistic intention of the photographer. Yes, it is certainly possible to go to extremes of over/under exposure and produce a bad photo, but there is a significant range in which the exposure can reside and still look good. 

Back on the topic, one of the first things to do is pick (or set) a white balance. From my online research it seems that the common consensus is to take a custom WB reading off green grass lit by the sun; or use the WB picker tool in editing software and take a reading off the grass (or similar toned subject). This is all well and good but once I have the R72 filter in place, neither of my cameras will take a custom WB reading. So, I tried the WB picker tool - and found an interesting thing. Using Lightroom to do this the WB was consistently being set to 2000K and -36 tone. Now if you look at the WB tool in Lightroom’s develop mode, it only goes down to 2000K - this is as red as it can go and is actually within the range of “Near IR” on the Kelvin Color Scale, which using Wein’s law is calculated at approximately 3000K. This got me to thinking, why not just set my camera’s WB to their lowest and use that for the photos?

According to the camera manuals, the D100 can be set to a custom WB of 2,700K and the D2X can be set to 2,500K. Add in an exposure compensation of around +2 and this is a pretty good “set and forget” setting. If the images are still a little too far off once in Lightroom you can go ahead and move the WB setting to 2000K and -36 tone.

Beyond the actual physical conversion of the camera body so that it can shoot IR photos without an additional filter on the lens, this is as close as you can get to working in the “Near IR” spectrum - and far from working in the “IR” spectrum as it resides at approx. 300K which is far beyond the ability of a DSLR regardless of filters. Not that any of us can see anything remotely near these wavelengths anyway.

As I mentioned earlier I wanted to expand a little on my comment on channel swapping. You will need Photoshop, or some similar editing program that has channel adjustments to carry out this technique. 
  1. Open the image in Photoshop
  2. Apply a Channels adjustment layer
  3. Select the Red Channel and set Blue to +100, Red to 0
  4. Select the Blue Channel and set Blue to 0, Red to +100
  5. Flatten image
  6. Carry out further editing or hit Save
The idea behind this technique is that it will retain “blue skies” in false color IR images. Not something to worry about if you convert all IR images to B/W, as a lot of people do. The only thing that I’ve found that seems odd with this technique is that I can take the same camera and settings to take a shot, swap lens and take the shot again and the false coloring will vary greatly in the red-blue spectrum. My Tokina 12-24mm seems to produce images with a blue color cast over the entire image, while my Nikon 60mm Micro produces more of a magenta color cast but it doesn’t tint other colors in the same way as the Tokina seems to.

In general I’ve been a little disappointed in how the Tokina 12-24mm handles IR photography, which as it’s pretty much tagged as a “do not use for IR” lens across the internet is not surprising. In fact, my old (slow) Nikon 18-55mm lens produces more pleasing IR images with no apparent hotspots. So much so I’ve decided to return the new 77mm Hoya R72 filter and will instead get something more useful for landscape/architectural photos - a good 4 stop or higher ND filter or a circular-polarizer; I’m leaning toward the ND personally. I’ll still be experimenting with IR photography, just that I’ll be doing that on my “spare” body and lens combo - D100 and 18-55mm. I’ll keep the D2X and Tokina 12-24mm for my main camera and swap out for the D100 when it’s IR time.

Now I don’t really have much in the way of IR photos to share as examples as I was aiming at testing rather than aesthetics - in other words, they suck! As I get more experienced with shooting IR photos I will post examples here for everyone to view, just that at this time I’d rather keep them to myself.


I will share a few “normal” photos from the same testing sessions though (in my next blog post) as examples of what the Tokina is capable of.