Sigma 14mm f/1.8 DG HSM Art Lens Sample Pictures

Welcome to Island Pond, located by Red River Camps in Deboullie Public Reserved Land of T15-R9 in the North Maine Woods. That this location is a nearly 1-hour drive from the grid and paved roads should help set the scene. Along with natural beauty, what you get here is a dark sky and at this time in August, a beautiful view of the Milky Way and the annual Perseid Meteor Shower.

Aside from the effort required to get to this location, this was a very easy image to create.
 

• Mount the camera and lens on a solid tripod
• Manually focus the lens on a bright star using fully-magnified live view
• Adjust the composition as desired with the camera leveled for roll
• Dial in a manual exposure of f/1.8 (use your widest available), ISO 6400 and 30 seconds (a stretch)
• Set the camera to its high-speed frame rate
• Plug in a remote release
• Capture a test image and verify that it looks good
• Lock the release button down (press down and slide forward)
• Return later

After setting up the first camera, you have plenty of time, so set up a second camera the same as the first, capturing a different composition.

On this night I had three camera setups with four of what I consider the best night sky lenses available. One of the cameras was a Nikon model and the only Nikon-mount star-capable lens I had along (not a Nikon model) showed a serious image quality problem, leaving two cameras in operation.

I mentioned that the 30-second exposure was a stretch and that is what happens to the stars at this focal length, exposure duration, and imaging sensor pixel density combination. They get stretched.

A blur is created when details in an image move across pixels on the imaging sensor, regardless of the reason why that happens. As we all know, due to the earth's rotation, stars are moving across the frame when the camera is in a fixed position. The longer the exposure, the more they are magnified (longer focal length lens) and the higher pixel density the imaging sensor has, the more that star blur will be visible at the pixel level.

Note that when final images are viewed and compared, the imaging sensor's pixel density-caused blur becomes equalized. For example, if you are printing at 8" x 12", the pixel density factor no longer matters in regards to the star trail blur created by two different resolution, equal-sensor-sized cameras.

Also, note that not all stars move at the same rate relative to the camera position. For example, the North Star (Polaris) does not move at all. If you are primarily including the northern sky in the frame, you might be able to use longer exposures than if your camera was directed west, east or up. There are star blur rules that can be helpful, but photography skills rule. Analyze your results as soon as they are captured and make adjustments as needed.

I mentioned having 4 of my favorite star lenses along with me. They are my favorites, but the perfect star lens, at least from a lens in the realm of affordability for most individuals, does not exist. All lenses have at least some issue keeping them from reaching perfection and corner performance is typically their biggest limiting factor.

This image was captured with the Sigma 14mm f/1.8 DG HSM Art Lens. It is a great choice for this purpose.

For star photography, ultra-wide angles are helpful for taking in a greater area of the sky and allowing longer exposures before star trails become visible, though ultra-wide angles produce rather small stars. Ultra-wide apertures (that produce sharp enough image quality to be used) create a brighter image in less time or at a lower ISO setting. The Sigma 14mm Art lens has those two features.

The worst case: even if the entire night's shoot was a failure, just hanging out under a starry sky would be totally worth the time and effort.

Baltimore's Inner Harbor is a target-rich environment and this location became a daytrip destination for giving the Sigma 14mm f/1.8 DG HSM Art Lens a workout.
 
I found the art sculpture in front of the Maryland Science Center entertaining and made it my focus as the sun set. I wanted the art sculpture to be framed against the sky, providing a colorful, clean background. I also wanted the city skyline framed above the brick walkway below and the bricks would provide a solid base for the overall image.
 
Those wants meant a position between the science center and the art sculpture was required. That I wanted the art sculpture rendered large relative to the other subjects in the composition meant that a close perspective was required and that meant it was a perfect subject for the 14mm lens I was evaluating. With the wide 14mm focal length on a full frame body, I was able to set up on the science center side of the art sculpture, keeping the science center's roofline just outside of the frame.
 
The time-of-day took care of giving me the right light and colors for this single-exposure capture. With some layers adjustments applied, I didn't need to incorporate the additional exposure-bracketed images I captured.
 
The image quality delivered by the Sigma 14mm f/1.8 DG HSM Art Lens is very impressive, even when mounted on an ultra-high resolution Canon EOS 5Ds R camera.

Here in the Northern Hemisphere, the winter solstice is rapidly approaching and the days are already short. That means nights are long and, while plenty of indoor photography avails itself at any time of the year, late fall and winter is a great time to photograph the night sky for a few reasons.
 
First, there is more dark time of the day and that means more hours of star visibility. You can spend hours photographing the night sky and still get to bed in time to be well-rested in the AM. When the nights are long, the biting bugs are gone (depending on where you live, the potentially-biting bears may also be gone). One more reason is that, because cold air is not able to hold as much moisture as warm air, winter tends to have clearer skies, and clear skies are of course a prerequisite for star photography.
 
Winter astrophotography is not without downsides and these include less-comfortable temperatures along with a Milky Way alignment that may or may not work well for you. Of course, a bright moon can preclude dark skies at any time of the year.
 
The Milky Way (or any photo of the stars) can make a nice image, but a meteorite is a huge bonus. How do you increase the odds of getting the perfectly-positioned meteorite in the frame? Photographing during a meteor shower is ideal. However, meteorites can happen at any time and a formally-designated "shower" is not a requirement. A big key is to take a lot of photos, significantly increasing the odds of a well-placed shooting star streak.
 
Night sky exposures are long, especially with long exposure noise reduction enabled, and that means taking many photos takes a lot of time. Time-consuming tasks that can be left unattended beg for multitasking. Set up the camera (on a tripod of course) with the desired manual exposure settings dialed in and set the drive mode to high speed burst. Then, using a remote release featuring a shutter release lock, lock the release down and go do something else.
 
If you are fortunate enough to have great stars in your backyard (and you are not concerned about the camera being stolen), that something else could be anything indoors including eating dinner. Or, set up a second camera to photograph the night sky with, perhaps using a different foreground and/or focal length. Read a book, call your mom, sleep, etc. You get the point – and you get the pictures.
 
If long exposure noise reduction is turned off, the set of images captured can later be combined to create a star trails photo (these are especially great if including the North star). Also optional with the same set of images is creating a time-lapse sequence with the stars moving across the sky.
 
For this image, I used the suggested strategy and spent my time working with another camera I had also set up. Every 5 minutes or so, I came back to adjust the composition (keeping the bottom of the Milky Way aligned with the break in the trees). Upon reviewing the images later, I found one with the ideal meteorite streak position (along with four smaller meteorite streaks visible in the full-resolution image).
 
I should mention here that even with a 14mm lens, cameras with imaging sensors having pixel densities as high as the Canon EOS 5Ds R (and all 20+ MP APS-C models) begin to show small star motion-blur streaks at the 25 second exposure used here (except those stars closer to the North Star and the southern equivalent). One option to extend exposure times while avoiding star streaks is to use an equatorial tracking mount. However, a tracking mount will just cause the foreground to be blurred (if a foreground is included in the frame). A great feature of the Sky-Watcher Star Adventurer tracking mount is the 1/2-speed rotation setting option, permitting the motion blur to be balanced between the earth-bound subject and the celestial ones. This setting effectively doubles the exposure times that can be used or, alternatively, it facilitates a 1-stop lower ISO setting. The Star Adventurer likely costs less than you think. Start with the "Astro Package" and consider adding the EQ base and counterweight.
 
Multiple times I've started to assemble a list of the best star photography lenses, but ... that project remains unfinished. That is a really hard list to assemble and there are no perfect astrophotography lenses. However, there are several really good choices and I currently consider the Sigma 14mm f/1.8 DG HSM Art Lens to be the best astrophotography lens available today. I have a dark sky photo trip planned for next summer and the Sigma 14 Art is the primary Lens I plan to take for that purpose.