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Second entry:

Looney 11 Rule for exposure—where X is your ISO, use a shutter speed of 1/X of a second at ƒ/11. Here, I used my ancient Vivitar 85-205mm ƒ/3.8 lens on my D3200. Because this lens has distortion and aberrations that get worse, the wider the aperture, I stopped it all the way down to ƒ/22...

Tank you, very much.

First entry. The feed dogs on my wife's sewing machine.

Another Pholcus phalangioides, this one a very small, probably-immature example. I don't think this particular spider could reach a span of half an inch of it spread its legs out straight. Mature examples typically easily reach a span of an inch or more.

Formatting an SD card in my computer, in NTFS format, and then inserting it in my camera, gets me this message: I think the problem has to be with the switch in the camera, that detects the position of the write-protect slider on the card.

I have verified the behavior that I expect, with my D3200, that if I slide the write-protect slider on an SD card to the lock position, and insert it in my camera, I get the exact same result, albeit not in all caps. I have to think that if you're getting this message, when you insert an SD...

Some stars—including the constellation Orion—showing through some thin clouds, in the wee hours of the morning. You must never make jokes about that bright star to the lower left. It's Sirius.

No pictures of my own, but many years ago, my wife and I dined at a real “dive” in Los Angeles. It was a restaurant called “Dive!”, heavily submarine-themed, and even made on the outside to resemble a submarine. Unfortunately, it shut down permanently in 1999. DIVE!

The period for it began several hours ago, but the topic has not yet been announced.

Bathroom-mirror selfie—retro-style. My Nikon F2, loaded with Tri-X.

Second Entry: As long as I can remember, my father had this tie clip, with this metal plate attached to it. Somewhere during my childhood, I got the idea that this was his name represented in some punchcard code. After my father passed away near the end of 2008, this came into my...

I think it's worth pointing out that flash introduces a whole new problem—a sort of a “depth-of-field” effect on exposure rather than focus. Perhaps the use of a flash will throw enough light on the scene to get the depth-of-field that @290373m thinks he wants, with everything in sharp focus...

First entry: My antique Tektronix Type 502A oscilloscope, showing off the warm glow of its vacuum tubes.

My АЧС-1М aircraft clock, from the Союз Советских Социалистических Республик. I found this in a thrift store, many years ago, for just a few dollars. Subsequent research has revealed that this clock, or one very similar, is standard equipment in the Микоян МиГ-29 fighter plane. To get this...