Recent content by collinsmark

... Continued from previous post. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Self portrait. Figure 16. I don't know who these boots belong to. But I saw them sitting there (just as they are in the pic), and decided they need their photo taken. Figure 17. Figure...

Here's pics from last Thursday (curated for PF, of course). Figure 1. Fashion Valley Transit Station has been hosting a lot of pigeons lately. I suspect somebody might be feeding them. Figure 2. "Manifestation of the Sacred, Divine Pigeon of Manual Focus Luck." I can't believe I nailed...

... Continued from previous post. Figure 11. You've seen this guy before. Figure 12. He was happy to see me again (I think). Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. It was a busy week. The previous Wednesday and Thursday...

Last Saturday (Oct. 17) there were events all across the United States to encourage early voting and voting in general (midterm elections are looming here). I went to one such event at Balboa Park. Here's a curated group of photos I took that day. Figure 1. Figure 2. Figure 3. Figure...

... Continued from previous post. Figure 9. Figure 10. Figure 11. This chessboard is rather large. I'm guessing it's roughly 12 times the size of a normal chessboard. You have to get up and walk to move your pieces, which are about 2 - 3 feet tall, roughly. There was some sort of chess...

Pics from last Friday. After a trip to the hospital for some routine lab work, I took the trolley to (newish) downtown library. From there I walked through East Village back to the Gaslamp Quarter. Figure 1. Figure 2. Figure 3. Figure 4. While I'm leaving this picture "untitled," it does...

The two blocks together lie on a frictionless surface. So even an infinitesimal amount of force will cause the blocks (still together) to move along the frictionless surface a little (even if very slowly). To help wrap your head around this problem, here are some hints: (I.) Forget the given...

... Continued from a previous post. Figure 9. This is my favorite picture of the day. Sometimes things just fall into place. Sometimes it requires patience. Figure 10. So I went to the "Headquarters at the Seaport," that I mentioned a couple of posts ago. This is an exhibit in the old police...

New batch of Thursday photos (curated, of course). Figure 1. This one turned out somewhat Lovecraftian. The photo was shot through the window of a moving trolley. I love taking long (or longish) photos of a moving subject while also moving and panning in a bumpy environment (e.g., Fig. 1). It...

Yes and yes. But you don't need a special near-IR filter to see that effect. Just point your camera as-is (even if it's a cell phone or webcam; most any digital camera will do) at the remote control and look at your camera's "live view" screen, where you can "see" what the camera sees, then...

Yep, me too. I think this is something pretty new. Yesterday I saw a commercial (on YouTube) touting the feature on certain Energizer brand batteries. Apparently they'll prevent chemical burns in the digestive tract if swallowed.

Here's my thoughts on shooting near-infrared (near-IR) with a color, digital camera. So I picked up a Infrared filter compatible with several lenses within my Leica M system. I had shot some near-IR on my old Nikon/Nikkor system, but those filters were of a different thread size; thus the need...

Now that I've posted pics from last Thursday, here's some from the day before, Wednesday. Every other Wednesday is usually a photography day for me. Wednesdays are the days (once every 2 weeks) that I go to the hospital and get a take-home chemotherapy pump disconnected from my person. That...

I'm late getting in on this thread. But I have to speak: Logarithms are not obsolete. Engineers who deal with the physical layers of WiFi, Bluetooth, Cellular networks, cable modems, or basically anything over the air, or even anything cabled over long distances, deals with logarithms in the...

... Continued from previous post. Figure 8. "Bond of golden boy." Figure 9. Figure 10. Figure 11. Taken from inside trolley. I saw what I thought was a nice architectural composition and scrambled to change my shutter speed from 1/8th second to something faster (I think it ended up at...