Photo Techniques - David Mathre Photography

Wednesday (01-January-2025) — New Jersey

Fourteen-Years Ago Today. Early Morning View of Fitzroy from El Pilaf Hosteria in El Chalten. (01-Jan-2011, Argentina)

Winter Night Sky Over New Jersey.

During the day I got several alerts from the Space Weather Prediction Center indicating that there might be chance for an aurora. There are many sunspots visible during the current Solar Maximum that I have been showing over the last month. I set up several cameras just in case we get a display like we did on 11-October-2024. Unfortunately, I didn’t see evidence of an aurora. In the star trail composite images, I did see lots of jet trails, and a few of the Quadrantids meteors. I used a Nikon Z9 camera and 8-15 mm fisheye lens pointed straight up to get a 360° view of the sky. The first three images are composites 19:00-22:35 (some clouds before 20:00), 20:00-22:35 (clouds gone), and 22:38-00:30. There are a set of 30-minute composites in the slide show. And finally, a time-lapse video created using the individual 30 second exposure images.

Winter Night Sky Star Trails Over New Jersey. Composite of images taken with a Nikon Z9 camera and 8-15 mm fisheye lens. 19:00-22:35

Winter Night Sky Star Trails Over New Jersey. Composite 30-minute images taken with a Nikon Z9 camera and 8-15 mm fisheye lens. The individual images are available in my PhotoShelter Gallery.

Monday (30-December-2024) — New Jersey

Five-Years Ago Today. Little Planet view of the Andalusia Plaza in Granada Terrace. Historic Northeast St. Petersburg. (30-Dec-2019, Florida)

Silhouettes of Birds Transiting the Sun.

Today, I captured images of three Canada Geese and a Turkey Vulture or Hawk transiting the sun while looking at the sunspots (we are at or near the solar maximum). I was viewing the sun with a Stellina and Vespera Classic automated telescope using solar filters. I am not sure if these are the type of geese that migrate south, of just fly in circles staying in New Jersey. My pond was frozen over, so they were not staying here.

Silhouette of three geese flying in front the sun with sunspots. Image taken with a Vaonis Stellina Telescope (400 mm, f/5) with a solar filter.

Silhouette of a Hawk or Turkey Vulture passing in front of the sun. Image taken with a Vaonis Vespera Classic Telescope (200 mm, f/4, 1/4000 sec) with a solar filter.

Monday (16-December-2024) — New Jersey

Fifteen-Years Ago Today. Surfer Girl at Hookipa Beach Park. (16-Dec-2009, Maui)

Image of the Day.

For the image of the day, I select an image from the past taken on this day of the year. I now have over a million digital images going back to 2006 when I got my first DSLR camera, a Nikon D200 for a cross-country road trip. I have a few other digital images from a Polaroid PDC 700 point and shoot from before 2006.

The “Surfer Girl” image was taken while in Hawaii for a Pacific Chemistry scientific meeting. I had the morning off and went for a drive along the coast. I stopped at Ho’okipa Beach Park and went to a section overlooking the beach. It was windy and there were some big waves. I could see some folks surfing the waves at a distance of 300-400 feet. For the trip, my travel camera was a Nikon D3x with a 70-300 mm zoom lens. At that time the 24-megapixel sensor was state of the art — great for landscapes or portraits with a steady tripod. But it was slow, not really suited for fast moving sports. Maybe 2 shots/second burst rate that quickly filled the buffer. I took a number of shots of the surfers out on the big waves.

It wasn’t till I downloaded the images later that evening that I realized I captured this great shot out of a 15-shot sequence taken over 8 seconds. Having a 24-megapixel image allowed me crop and zoom in on the surfer. I posted a cropped image on my photoblog and on Google+. A print of the image won an award at a Photography Show in Florida. I posted it on my photoblog and on Google+. Later, I found out it ended up in some surfer sites and it had been used in time-share and condo rental advertisements. Probably, my most stolen image.

Below, I show the original image sequence along with reprocessed versions of the sequence with currently available tools. DxO Pure Raw (Camera/Lens correction), Capture One Pro (Levels and High-Dynamic Range), and Topaz AI (sharpening).

Original RAW Image Sequence (2009, NEF)

Image Sequence Processed with Capture One (2024, TIF)

Image Sequence Processed with DxO Pure Raw (2024, TIF)

Image Sequence Processed with DxO Pure Raw and Capture One (2024, TIF)

Image Sequence Processed with DxO Pure Raw, Capture One, and Topaz AI (2o24, TIFF)

Image Sequence Processed with DxO Pure Raw, Capture One, and Topaz AI (2o24, JPEG)

Friday (13-December-2024) — New Jersey

Digital Art. Silhouette of an AI Drone Hovering in front of the Moon. (13-Dec-2024)

Silhouettes of an Airplane, Jets, and a Turkey Vulture Transiting the Sun.

Today, I captured images of an airplane, two jets, and a Turkey Vulture transiting the sun while looking at the sunspots (we are at or near the solar maximum). I was viewing the sun with a Vespera Classic and Vespera Pro automated telescope using solar filters.

Silhouette of a Turkey Vulture passing in front of the sun. Image taken with a Vaonis Vespera Classic Telescope (200 mm, f/4, 1/4000 sec) with a solar filter. — Silhouette of a Turkey Vulture passing in front of the sun. Note I am guessing it is a Turkey Vulture. It could also be a Black Vulture. Image taken with a Vaonis Vespera Classic Telescope (200 mm, f/4, 1/4000 sec) with a solar filter.

Silhouette of an airplane passing in front of the sun. Image taken with a Vaonis Vespera Classic Telescope (200 mm, f/4, 1/4000 sec) with a solar filter.

Silhouette of a jet transiting the sun with sunspots. Image taken with a Vaonis Vespera Classic Telescope (200 mm, f/4, 1/4000 sec) with a solar filter.

Sun with sunspots and the silhouette of a jet. Image taken with a Vaonis Vespera Pro Telescope (250 mm, f/5, 1/4000 sec) with a solar filter.

Comet C/2023 A3 (Tsuchinshan–ATLAS)

The comet is getting fainter and the tail much shorter. You may need to look closely; the comet is in the center of the frame. The magnitude is now 10.4. The first image is a composite of 32 images (5 min 20 sec) and the second one is a composite of 128 images (21 min 20 sec). In the second image there is some movement of the comet head.

Thursday (12-December-2024) — New Jersey

Digital Art. Flock of geese transiting the sun. The geese flying in front of the sun are real, the rest is digital art. (12-Dec-2024)

Silhouettes of Jets and Geese Transiting the Sun.

Today, I captured images of a flock of geese and several jets transiting the sun while looking at the sunspots (we are at or near the solar maximum). I was viewing the sun with a Vespera Classic and Vespera Pro automated telescope using solar filters.

Flock of geese transiting the sun with sunspots. Image taken with a Vaonis Vespera Classic Telescope (200 mm, f/4, 1/4000 sec) with a solar filter.

Silhouette of a jet transiting the sun with sunspots. Image taken with a Vaonis Vespera Pro Telescope (250 mm, f/5, 1/4000 sec) with a solar filter.

Comet C/2023 A3 (Tsuchinshan–ATLAS)

The comet is getting fainter and the tail much shorter. You may need to look closely; the comet is in the center of the frame. The magnitude is now 10.3. The first image is a composite of 32 images (5 min 20 sec) and the second one is a composite of 128 images (21 min 20 sec). In the second image there is some movement of the comet head.