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Forum: Mini-Challenges, Games, and Photo Stories 7 Hours Ago  
Photo Scavenger Hunt Game Continued - Part II!
Posted By WPRESTO
Replies: 16,692
Views: 935,324
It's off to the left, on all my posts.:p It's true that I'm not as young as I used to be, but I don't think that I ever was.:hmm:
Forum: Mini-Challenges, Games, and Photo Stories 17 Hours Ago  
Alphabet Race (a very quick game)
Posted By WPRESTO
Replies: 56,065
Views: 2,504,294
Insect
Forum: Mini-Challenges, Games, and Photo Stories 18 Hours Ago  
Show me a Sign! Billboards,sign,bus ads,shop signs go here!
Posted By WPRESTO
Replies: 6,006
Views: 515,384
It's the favored term in much of New England. I first heard it from M, but all her family (many aunts, uncles, cousins, etc) all called such sandwiches "grinders.." I cannot ever remember having one when I was a kid, but I vaguely remember the terms "hero" and "hoagie" used for such a sandwich. I did not hear the term "subway" until that company became commonplace.
Forum: Mini-Challenges, Games, and Photo Stories 22 Hours Ago  
Show me a Sign! Billboards,sign,bus ads,shop signs go here!
Posted By WPRESTO
Replies: 6,006
Views: 515,384
Looks like a sandwich ("subway" "grinder" "hero" "hoagie")
Forum: General Talk 1 Day Ago  
Your latest acquisition
Posted By WPRESTO
Replies: 22,760
Views: 1,677,855
No surprise on those prices. What would an original equipment tail light for a Cord or Chrysler Airstream cost today? The important thing: what did a replacement tail assembly cost for a 240Z when the vehicle was new? Allowing for inflation, was it equivalent to what I had to pay for the plastic brake light cover on my Subaru? I'll wager both prices were far higher than the brake light cover for the frog-eye A-H Sprite I once owned.
Forum: Mini-Challenges, Games, and Photo Stories 1 Day Ago  
Alphabet Race (a very quick game)
Posted By WPRESTO
Replies: 56,065
Views: 2,504,294
This "X" has appeared before with a different dog jumping over it.
Forum: Mini-Challenges, Games, and Photo Stories 1 Day Ago  
Alphabet Race (a very quick game)
Posted By WPRESTO
Replies: 56,065
Views: 2,504,294
"R" and "S" for Rusty Strigil (336-31 BCE). (hopefully with few noticing, he corrected his attack of CARS:o;))
Forum: Mini-Challenges, Games, and Photo Stories 1 Day Ago  
Thematic Trees
Posted By WPRESTO
Replies: 4,874
Views: 314,362
Capturing a lightning bolt without an auto-triggering device is really tricky. MUCH easier at night. BTW, FYI the average duration of a single lightning bolt is about 0.2 seconds (TV = 1/5 second) which is just barely within human reaction time and shutter delay time (better to have the mirror up). A single strike is actually composed of over 50 discharges each of which lasts milliseconds and follow exactly the same path through the atmosphere ionized by the first extremely short discharge.
Forum: Mini-Challenges, Games, and Photo Stories 1 Day Ago  
Alphabet Race (a very quick game)
Posted By WPRESTO
Replies: 56,065
Views: 2,504,294
Pinks, specifically maiden pinks making fields and meadows look festive. I've posted numerous images of these recently. These two are the last. Promise.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 1 Day Ago  
Micro Four Thirds Club
Posted By WPRESTO
Replies: 3,753
Views: 390,931
Have you seen a Laowa 4mm f2.8 circular fish-eye lens?
Forum: General Talk 2 Days Ago  
Your latest acquisition
Posted By WPRESTO
Replies: 22,760
Views: 1,677,855
In addition to the already recommended AMAZON, be sure to check out AdapterRings.com - Offical Site. The world's largest seller of Camera Adapter Rings.

I just checked the latter - - M42 thread-on rear lens caps. $1.50.

BTW: Going to the site you always start on the page for adapter rings. Click on "home" to see the variety of caps, filters, extension tubes, odds and ends they offer.
Forum: Lens Clubs 2 Days Ago  
*Macro* lens club
Posted By WPRESTO
Replies: 4,296
Views: 587,696
I started with Pentax a few years earlier than Canada_Rockies. There have been points in time when I did not own a Pentax, and I've owned other brands simultaneously = Bronica S2 and both film & digital Nikon and Canon. I'm not sure I can remember all the Pentax cameras I've owned, but they include: Asahi Pentax S, Heiland Pentax H1a, Spotmatic, ME Super, LX, PZ 10, ZX 5n, *ist, K20, K5, K3, K1 and also a Ricoh XRM (that counts right?). As for Takumar/Pentax lenses, I won't bother as the list is very long, extending from a 50mm f2.2 preset Takumar to the 150~450mm. I've paid my Pentax dues, but I've almost completed the shift to MFT for the sake of bulk, weight, and a few other minor considerations. If you want to take a vote to expel me from PF, betcha I win.;) And no hard feelings. When I first joined PF I once queried a posted image that was made with a Nikon.
Forum: Pentax K-1 & K-1 II 2 Days Ago  
Post your K-1 pictures!
Posted By WPRESTO
Replies: 32,146
Views: 3,045,923
All the images so for on this page are winners.
Forum: General Talk 2 Days Ago  
Your latest acquisition
Posted By WPRESTO
Replies: 22,760
Views: 1,677,855
We inherited a Chrysler Horizon when my mother-in-law passed. It had wind-up windows that broke. I could not wind up the driver's side window, I had to grab the edge of it, pull it up, push it up snug, then turn the window crank with the opposite hand (still holding the window up snug). It would stay closed, but if I cranked it down just enough to let in some air, no amount of cranking would put it back up. I pulled off the door panel, repaired it so it worked, replaced the door panel. It broke again in less that two weeks. I could not begin to tell you the engine problems with that piece of -----. Once I was given a Sebring as a rental car. With a name like that it should GO! The only vehicle I've driven with more anemic acceleration was an ancient VW van with a dying engine that I once (and only once) borrowed from a fellow graduate student. The feeble performance of that Sebring made me fearful of taking it out on a highway. My daughter & son-in-law got a Sebring as a rental during a vacation. It was the first thing he mentioned when they got back. "Gutless" was the euphemism he applied.
Forum: Mini-Challenges, Games, and Photo Stories 2 Days Ago  
Alphabet Race (a very quick game)
Posted By WPRESTO
Replies: 56,065
Views: 2,504,294
Gold coin (ca 2400 BCE) with an odd design - a slaughtered bull.
Forum: General Talk 2 Days Ago  
Your latest acquisition
Posted By WPRESTO
Replies: 22,760
Views: 1,677,855
FYI: We purchased a Chrysler mini-van the first year they were introduced. Ours did not have AC, but it did have rotating vent windows in the back for ventilation. They would not stay open. After 5~10 minutes driving on a highway, the vibration would giggle them loose and they'd close. We stuffed bits of wadded paper, pieces of cardboard, pop-sickle sticks, whatever into them to try to keep them open to very little avail. For how many years before the introduction of that vehicle had such vent windows been used, and Chrysler could not make one that worked properly. Shameful incompetence.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 3 Days Ago  
Micro Four Thirds Club
Posted By WPRESTO
Replies: 3,753
Views: 390,931
MFT users consider this:

1) SFAIK the widest rectilinear lens currently available for MFT is the Panasonic 7~14mm f4.0 (14mm FF FOV at the widest setting).

2) The widest rectilinear prime for MFT is the Laowa 7.5mm f2.0, recently released in a new mount with an auto-aperture. (15mm FF FOV)

HOW ABOUT: A high-quality 5mm rectilinear, fix-focused @ one foot, single aperture = f5.6. According to several DOF calculators I tried, the focus range would be 6 inches to infinity. This would be a body-cap lens, no controls, no diaphragm, no focusing mechanism. 10mm FF FOV. If Irix or Laowa offered crowd-sourcing for the project, provided the lens were "high quality" (=best IQ possible within the parameters given, as rectilinear as possible - no fish eye - and as sharp as possible) I would go for it.
Forum: Mini-Challenges, Games, and Photo Stories 3 Days Ago  
Thematic Cats!
Posted By WPRESTO
Replies: 919
Views: 62,083
I knew from experience when my mother died that after my sister died I would begin to get her mail, especially solicitations from charities to which she had donated, in her name but to our address despite the fact that she never lived here, nor anywhere in the Commonwealth of MessyChewBits. So I printed out a bunch of peel-and-stick labels in bold red letters that said "ADDRESSEE DECEASED, RETURN TO SENDER." I stuck them onto the envelopes directly over our address and dropped them into a blue mailbox. It took about 18 months, but eventually the solicitations stopped. I don't think one has come for about two years now. If only I could shut down some of the catalogs that way.
Forum: Pentax SLR Lens Discussion 3 Days Ago  
The Bokeh Club
Posted By WPRESTO
Replies: 21,244
Views: 1,953,727
I have experienced, understand and sympathize with the problem of breeze across an open field or meadow. So many times I've been out photographing insects in a field on a dead still morning only to discover back home that there was an imperceptible breeze that was just enough to blur any image taken at 1/10 second or longer TV. Got the flower in focus, and there it goes waving wildly in and out of the bokeh. Wait, wait until it settles, almost still, and then there it goes again, totally out of the framing, thrashing like a cork in a maelstrom. NUTS!:mad:
Forum: Mini-Challenges, Games, and Photo Stories 3 Days Ago  
Thematic Cats!
Posted By WPRESTO
Replies: 919
Views: 62,083
I'm starting to receive, with some regularity, invitations to informational sessions and tours of local retirement communities. At least there are only rarely such notices addressed to my mother who never lived at this address and who passed 25 years ago.

Here is Annabelle in full-sun-absorption mode.
Forum: Mini-Challenges, Games, and Photo Stories 3 Days Ago  
Alphabet Race (a very quick game)
Posted By WPRESTO
Replies: 56,065
Views: 2,504,294
Dianthus AKA "pinks." now blooming in fields and meadows near us, as well as on the hillside behind our house where I scattered seeds last year.
Forum: General Talk 3 Days Ago  
Your latest acquisition
Posted By WPRESTO
Replies: 22,760
Views: 1,677,855
Granted all of that, not for a moment do I believe that having a protruding circular tail light instead of a complexly shaped wrap-around tail light would make the slightest perceptible difference in a vehicle's real-world performance.

---------- Post added 06-13-21 at 01:48 PM ----------



Here is the rear quarter of a Datsun Z car. Look at those horrible brake/tail/backup lights and that little light on the side of the rear fender. Think how much more performance you could get by removing those and substituting a $300 pierce of molded plastic that matched the shape of the edge of the rear fender! Not for a picosecond do I believe that changing those rectangular lights would alter the performance of this vehicle - acceleration, top speed, mileage - to an extent that could be detected by someone using this car day-after-day for normal driving.

Want to reduce drag on this vehicle? Go after:1) the little orange light at the edge of the front bumper, 2) the raised nameplates behind the front wheel, behind the rear window, at the right lower corner of the back hatch; 3) remove the button that raises the hatch; 4) change the hubcaps; 5) remove the part of the rear bumper that wraps onto the side of the car; 6) remove the extendable radio antenna on the rear fender; and most of all 7) remove the blind-spot rear view mirror on the driver's door (and probably a matching outside mirror on the passenger's door). Even removing all those obvious sources of air turbulence resulting in drag, for day to day driving, even highway cruising at 65~70 mph, the change in performance would be essentially imperceptible. How often and how hard you needed to brake and accelerate to deal with traffic would have a vastly greater impact on mileage.
Forum: Mini-Challenges, Games, and Photo Stories 3 Days Ago  
Thematic Bigger Flowers
Posted By WPRESTO
Replies: 3,000
Views: 182,514
Wild rose of some kind, a paler and more deeply colored blossom that were a couple meters apart. There were others blossoms that were almost white, and to me unworthy of memory-card space. Fewer petals on these than on the ones in Ivan's pictures just above.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 3 Days Ago  
Micro Four Thirds Club
Posted By WPRESTO
Replies: 3,753
Views: 390,931
Oly Em10 mkII + Oly 12~45mm f4 @ 45mm, cropped
Forum: General Talk 3 Days Ago  
Your latest acquisition
Posted By WPRESTO
Replies: 22,760
Views: 1,677,855
YES!!! Ford said you cannot fix a horse with a wrench, but now you cannot fix your car with one.

---------- Post added 06-13-21 at 09:49 AM ----------



The back end of your Datsun looks pretty flat to me. Is that aerodynamically smooth the way the rear quarters of modern cars are shaped? Is that the ideal shape for cars going as fast as they can? And that spoiler sticking up. Does it reduce drag at the rear end?

I am very skeptical of any performance advantage conferred on vehicles by having "aerodynamic" tail lights. Not for a moment do I believe that you could demonstrate any significant change in drag nor improvement in mileage by having one of those aerodynamic tail lights versus a simple round cover that was flush with the body, or even protruding enough that it could easily be seen from the side You would probably see more improvement in mileage by reducing the engine displacement by one or two cubic inches. As to side lights vs a single wrap-around cover, what does it take to have a second simple oval red plastic cover flush with the body panel at the rear corner of the car, held by two screws with a light below it?. Don't be tempted to tell me it would be more expensive when the plastic cover alone on my vehicle cost about $300. "Aerodynamics" is equal parts style and hype with insignificant effect on performance at legal highway speeds. Even the clear plastic aerodynamic covers of headlights have negligible, possibly undetectable impact on performance or mileage at the speeds cars are driven on public roads by any law-abiding person.

I think of the Myth Busters testing rigid covers that go over the beds of pickup trucks, sold to improve aerodynamics and therefore both performance and mileage (theory: air pushed up over the cab hits the flat inside of a tailgate = major drag; put a rigid cover over the bed, the air flows atop it, over the tailgate = less drag, better performance). But their tests indicated a truck equipped with such a cover used more gasoline over a carefully controlled test track. OUTRAGE by truck owners who had invested money in one of those covers. So they re-did the tests and got basically the same results.

Smooth shape is better than a brick at the end that's pushing into the air, but aerodynamic tail lights are more akin to a four-holer Buick. You are buying looks, not better performance.
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