Olin Lathrop‭

Because of compression and different sizes. The original JPG image you are referring to is 1080 x 790 pixels in size, for a total of 777k pixels. Since the image is true color, there would be 3 b...

posted 3y ago by Olin Lathrop‭

Do the math. Let's say the bullet in question is travelling at about the speed of sound, around 330 m/s. That means it moves 1 meter in 3 ms, or about a foot in 1 ms. Now look at the speed of "p...

posted 4y ago by Olin Lathrop‭  ·  edited 3y ago by Olin Lathrop‭

Dots and pixels can be the same or different, depending on context. In a computer file, an image is usually made up of a rectangular array of color (or gray) values. We call those pixels, for "pi...

posted 3y ago by Olin Lathrop‭  ·  edited 2y ago by Olin Lathrop‭

My first response is that a really like this picture. However, there are some details I'd probably change, or at least experiment with. Here is a scaled down original for comparison with subsequent...

posted 4y ago by Olin Lathrop‭

Moon over saguaro 16 Aug 2011, in the White Tank Mountains just west of Phoenix Arizona, 300 mm lens, 6:47 local time. The moon was nearly full, and low in the west around dawn. I wanted the moon...

posted 4y ago by Olin Lathrop‭

Possible problems, with their solutions, are: Inability to focus properly in the dark. Put the camera on a tripod. Focus and compose with the lights on. Depending on the camera, you may have to s...

posted 4y ago by Olin Lathrop‭  ·  edited 4y ago by Olin Lathrop‭

Here is another totally different derivative of the original: The waterfall and the swirling leaves are really two separate features that happen to be in the same original photograph. Trying to s...

posted 4y ago by Olin Lathrop‭  ·  edited 4y ago by Olin Lathrop‭

The problems The basic problem is that the flames are small bright things in what is otherwise a dark scene. The automatic exposure system then messes up because it strives to make the average com...

posted 4y ago by Olin Lathrop‭  ·  edited 4y ago by Olin Lathrop‭

Storm over Mesa Verde This was taken 16 Aug 2018 from the side of the highway a little west of Mancos Colorado. The storm clouds looked so dramatic that I stopped to take a picture.

posted 4y ago by Olin Lathrop‭

Comet Neowise Groton Massachusetts, 20 July 2020, 22:19. 135 mm, full frame (24 x 36 mm) sensor, 4 seconds.

posted 4y ago by Olin Lathrop‭

Thunderstorm over Mt Elden 18 Aug 2014 northeast of Flagstaff Arizona. I was on the east side of the ridge, so didn't get much warning about this thunderstorm coming from the west. A few minutes ...

posted 4y ago by Olin Lathrop‭

Red Squirrel Tamiasciurus hudsonicus, Grand Tetons National Park, 21 June 1985. I was surprised how close this animal let me get. It was quite content to continue eating the pine cone, even wh...

posted 4y ago by Olin Lathrop‭  ·  edited 4y ago by Olin Lathrop‭

Mountain Goats (Oreamnos americanus) Glacier National Park, Montana, August 1974. I came across these goats on the Garden Wall Trail about halfway from Logan Pass to Swiftcurrent Pass. They le...

posted 4y ago by Olin Lathrop‭  ·  edited 4y ago by Olin Lathrop‭

No. Dirt happens. Phones don't magically get dirty less than lenses of high end cameras. In fact, the opposite is true. Even a semi-serious camera lens has a cap or hood. This is a simple mech...

posted 3y ago by Olin Lathrop‭

You could do it either way, but it is usually better to apply effects that depend on the size or resolution of the picture on the final-sized picture. This is assuming, of course, that proper anti...

posted 3y ago by Olin Lathrop‭