More Pixels Let You Get More Detail From Your Originals.

One of the first digital cameras that I owned was the Olympus C-2000Z. This was way back in the year 2000. With its 3X zoom lens it had a sensor able to record images 1600 x 1200 pixels – roughly 2.5 megapixels. I treasured this digital camera since it allowed me to bypass the all of the film, darkroom and scanning steps and go directly to the computer screen. While the consensus is that 35mm film is roughly equivalent to 20 megapixel resolution, the quality of printed images from the C-2000Z would not match those made with film but they were certainly adequate for computer display.

Of course we’ve witnessed so many amazing improvements in technology these past twenty years and many would argue that digital imaging quality has surpassed that of film.

Since then I’ve been lucky enough (or unlucky according to my wife) to own a succession of digital cameras. With each new model the sensor resolution among other features has steadily increased. For a few years I have been using the Sony A7 III camera. This is a full-frame, mirrorless device with a 24 megapixel sensor and has proven to deliver excellent images under a large variety of shooting conditions. This camera had about the equivalent image quality as my ancient 35mm film cameras about 6000 x 4000 pixels.

A few years ago I upgraded to a newer Sony A7R IV camera mostly for its advanced autofocus and high burst shooting capabilities. It also gave me another feature – a sensor that captures 9500 x 6300 pixels – an astounding 60 megapixels of imaging data.

Shortly thereafter on my next photo excursion by car, I headed out west with the A7R IV.

Below is a photograph that I took when I stopped to shoot a large cattle feed lot near Ogallala, NE. I was standing across the Interstate highway about 100 yards from the lot fence.

---

---

The size of the original image is 9504 x 6336 pixels but for this web article the original has been reduced to 600 x 400 pixels (or 1200 x 800 if you click to enlarge).

---

---

Below I have cut portions from the original image to show you the amount of detail this camera is capable of recording. These portions are not enlargements. They are part of the original 9500 x 6300 image that have been cropped to fit on the computer screen.

---

---

Here are the cattle that are standing next to fence adjacent to the highway. You can clearly see the detail of these animals.

---

---

Here you can see the silo with the logo towards the back of the feed lot.

---

---

Lastly is an even smaller potion of the original image that shows even more detail of the silo.

---

---

Hopefully you can see why high resolution equipment is useful when shooting subjects such as scenery or wildlife. Capturing so much detail enables you to crop portions of your original photograph to achieve a desired composition.

---

Written by: Arnie Lee

---

It’s Dark Down There

Mammoth Cave National Park, located in central Kentucky is the world’s largest system of caves extending more than 400 miles. On a recent trip with a few of our grandkids, we stopped there for a few hours to explore some of the caves.
here are the grandkids adorning the park sign	at this entrance way we had to descend about 30 steps
We arrived at the park too late to reserve a spot on one of the various guided tours. Instead we opted to take the self-guided tour.
The beginning of the cave entrance is lighted by daylight with handrails and a cement walkway. Continue walking and the outdoor light slowly disappears.	Electrical lights provide the only illumination inside, but they are relatively dim. We were surprised by the width of the cave at this point – about 30 feet side to side.
As you can see, we’re walking alongside the cave walls. The pathway is mostly hard dirt but there are cement pavers in some parts of this cave.	At this point, the cave widens considerably and the ceiling varies between 30 and 50 feet high. You’ll also notice that this area is well lighted.
One of the park rangers points out this small bat hanging from one of the cave walls. He tells us that there were hundreds of the bats at one time but they are no longer found in large numbers.	This part of Mammoth ends after about one-quarter of a mile. As we turn around and walk back towards the entrance way you can visualize the darkness of these caves.
This short clip shows the large size of the so-called “ampitheater” within the self-guided tour cave.
The steps from the cave. The self-guided tour is an easy way to explore Mammoth when you’re time limited.	Here is the wife and grandkids relaxing after their cave diving experience.

---

---

For those interested, these photos were taken with a Sony A7 III camera using a 24-240mm lens. In most cases, the ISO setting was 16000 or 32000 and taken handheld with a shutter speed of 1/15 or 1/30 and aperture as wide as f/3.5. I think the photos are of pretty decent quality considering the cave environment.

 

 

---

---

 

 

 

 

Full Frame Mirrorless

Although I have been a longtime user of mirrorless cameras, I’ve been sitting on the fence about moving to a full-frame model. What was holding me back was my reluctance to make a sizable investment for a new set of lenses.

This past February while attending the Wedding & Portrait Professional Conference & Expo in Las Vegas, Sony introduced a new camera – the Alpha 7 III. In case you’re curious about it, see my previous article about the WPPI Expo here. A couple of features of the 24 megapixel A7 III caught my attention. First was the camera’s autofocus system. Using 693 phase detection AF points focusing was fast and accurate. Second the camera’s Eye AF which identifies and tracks the subject’s eye as the focus point. Third was its high continuous shooting speed – up to 10 frames per second. And forth was the comfortably adjustable LCD screen. And I saw that the A7 III had dual SD card slots. I spent about 30 minutes inspecting the camera and bouncing questions off of Sony rep Dave Rhodes. I left the expo with a very positive opinion about Sony’s brand new model. After returning home from WPPI, I pre-ordered the camera with a 28-70mm lens. Along with it I ordered an accessory that would allow me to use my collection of Canon lenses with this new model. This device is the Metabones Smart Adapter.
Last week Sony released the first batch of A7 IIIs and my order arrives by courier, but due to my workload I wait a few days to open it. When I finally free up some time I find that the package contains the body, lens, USB charging cord, shoulder strap and instruction manual. Strike 1 on Sony. I see that the package does not have a battery charger. Instead I have to use a USB cord to connect to the camera body to charge the battery.
Now I think that I’m ready to take a few shots so I attach the lens, insert the battery and a blank SD card and turn on the camera. Strike 2 on Sony. The battery is not charged so I cannot power on the camera. Disappointed, I unwrap the USB charging cord only to find that there isn’t an A/C adapter for the cord. Strike 3 on Sony. It would be nice for Sony to al least supply an A/C adapter for the USB cord. After striking out, I have to take a break. I hunt around for an A/C adapter and then proceed to charge the battery (in camera) for a couple of hours. After the battery is charged, I head outdoors to take a few shots.
my first photo with the A7 III	still – landscape
close up autofocus	action autofocus
high speed frame rate	auto white balance
While there isn’t anything remarkable about the photos, I want to see the camera shoot still, close auto focus (branch), action (runner), high frame rate (duck) and auto white balance (indoor).
I’m right-handed. The camera grip feels solid. Overall the body is compact without miniature features. The electronic viewfinder is bright and crisp. The LCD screen is adjustable making it easy to compose your shots whether they are overhead or low to the ground..
convenient and customizable control	the A7 III next to my Canon 6D
I like this camera’s dedicated exposure adjustment dial. A control wheel on the rear and another on the front are useful for changing exposure combinations. There are four buttons that let you customize the settings to your preferences. For those in a hurry to share photos, one of the controls lets you send images to a smartphone by Wi-Fi. And compared to my other full-frame DSLRs, the A7 III is noticeably smaller and lighter.

To be honest, I would not have purchased the A7 III had not the Metabones adapter been available. This accessory allows me to use my full-frame Canon lenses with Sony full-frame FE-mount bodies including the A7 III. Having read dozens of reviews of the Metabones adapter beforehand, I was convinced that it was the only way for me to afford a new A7 III without having to buy a new set of lenses.	the A7 III, Metabones adapter and a Canon E-mount lens.	the A7 III with the Canon 24-105mm F/4L lens attached.
As part of checking out this new camera, I tested all of the Canon lenses in my collection with the A7 III using the Metabones adapter. I was pleasantly surprised. The adapter worked with all of my lenses. Additionally the lens information (ID, shutter speed, f-stop, focal length) was transferred to the images’ EXIF data (two lenses were incorrectly identified). Below are images made using those respective lenses.
135mm F/2L	35mm F/2	75-300 F/4-5.6 @75mm
75-300 F/4-5.6 @300mm	24-105mm F/4L @24mm	24-105mm F/4L @105mm
50mm F/1.4	8-15mm F/4L Fisheye @8mm	8-15mm F/4L Fisheye @15mm
17-40mm F/4L @17mm	17-40mm F/4L @40mm	85mm F/2
100mm F/2.8 macro	Sigma 20mm F/2	24mm F/3.5L TS-E
100-400mm F/4.5-5.6L @100mm	100-400mm F/4.5-5.6L @400mm	All of these photos were taken from a distance of about eight feet except for the two 100-400mm photos which were taken from a distance of about 16 feet. In short, the Metabones adapter lets you use Canon EF-lenses on Sony FE-mount bodies. Sony E-mount lenses (designed for the smaller APS-C size sensor) can be used on the A7 III. My E-mount 18-200mm lens worked perfectly. However using an E-mount lens reduces the image resolution from 4000 x 6000 pixels to 2624 x 3936 pixels.

 
 

One neat feature that I am going to use for portraits is coined Eye AF. Long ago I was taught that for portraits it is important to focus on the subject’s eye. With Eye AF activated, the camera identifies the subject’s eye and makes it the main focusing point even if the subject moves. Eye AF worked well with the several subjects that I photographed.

I should mention that there’s an app on my iPhone that lets me grab images from the A7 III. The app is called PlayMemories Mobile and lets me download the images (JPGs only, not the raw ARWs) from the SD card to my iPhone. Having used the app with other Sony cameras previously, I’ve found it to be easy and very reliable.

I should also mention that PlayMemories Mobile also lets me record location information for the images. Using the smartphone’s GPS capabilities, the app sends the location coordinates via Bluetooth to the camera as it is capturing the images onto the SD card. Again, in my short time using this feature, it worked reliably. Bravo Sony.

I use the classic version of Lightroom to perform most of my image editing. To be exact, I’m now using Lightroom 6.14 but it’s my understanding that Adobe will not be making any further upgrades to this version. Therefore it’s unfortunate that I am unable to edit the raw ARW files with my copy of Lightroom without performing an extra step. Luckily I’ve found a way to fool Lightroom into believing that the camera’s raw ARW files were created with the previous generation Sony A7 II camera. Still this “fix” is an inconvenience before editing with Lightroom.

Despite my initial frustration (lack of a charger, uncharged battery, etc) out of the box, I remain very positive about its impressive features and performance. Having spent a few hours “playing” with this new mirrorless, I’ve used only several of the features that first attracted me to this camera. There are many more that I plan to become familiar with and use. Additionally, there are a large set of features that should be of interest to the movie enthusiasts. Admittedly, I’m not deep into moviemaking so I will cede the reviews on this aspect of the camera to other photographers.

In the mean time, if you’d like to learn more about this new model, Sony has an extensive description of the Alpha 7 III features here.

The suggested retail price of the A7 III is $2000 for the body or $2200 for the body with 28-70mm lens and is now available.
 
 

Written by: Arnie Lee
 
 

---

---