Forgot Password
Pentax Camera Forums Home
 
Log in or register to remove ads.

Showing results 1 to 25 of 300 Search:
Forum: Lens Clubs 2 Days Ago  
The "Projector Lens" Club ...
Posted By scratchpaddy
Replies: 481
Views: 144,613
Merci, Jean, you are very welcome! Knowing you, you probably have one or two much like mine in your collection already. :lol: The lens formula is common enough. I found it by searching for "3in projector lens" and sorting by cheapest first.

These lenses are so much fun. :)

Forum: Mini-Challenges, Games, and Photo Stories 3 Days Ago  
Your Pet A Day.... (post up!)
Posted By scratchpaddy
Replies: 12,463
Views: 1,103,989
Thank you! I did some more reading, and it doesn't look like huskies are any more vulnerable to merle problems than other breeds, but breed standards are supposed to remain a pure genetic lineage as much as possible, and the merle gene was not historically part of the husky lineage. This is a statement from the Siberian Husky Club of America (SHCA):






QuoteQuote:

Why does the Siberian Husky Club of America not want the merle gene introduced into our breed? First, from the vast photographic history of the breed there is no evidence that merle purebred Siberian Huskies existed or exist. Since the merle gene is dominant it could not have been “hidden” for all these years. By understanding these facts it is obvious that merle Siberians could only be produced by impure breeding, whether intentional or not. Second the genes that are involved in determining pigmentation and coloring also have significant effects on the development of eyesight and hearing. Dogs with just one merle gene do not seem to have major problems in this regard – but there is some evidence that even these dogs may be affected but just to a lesser degree that may be difficult to determine without specialized testing – but when two merle dogs are bred together there is a 25% chance that they will produce a double merle dog (“lethal white” or “double dilutes” are misnomers) – a dog that has two copies of the merle gene. The health consequences of double merle puppies vary from mild to severe and will not be apparent until the puppies are two weeks of age or older. Some puppies may be born deaf, some born blind and some born deaf and blind. Vision problems cover a wide variety of problems up to and including total blindness, small eyes or missing eyes altogether. Other eye conditions seen include eccentric pupils (also known as “dropped” pupil), underdevelopment (hypoplasia) of the iris so it is not able to function properly (often these dogs will squint in bright sunlight), and irregularly shaped (“starburst”) pupils. Other eye disorders are also possible. These health concerns may necessitate the need to euthanize a 2 week old or older, puppy.



An Aussie I've posted a few pictures of, Mika, I'm pretty sure was double merle. She had all the visual traits: mostly white with pink mottled nose and lips. She was deaf, and although she could see, her eyes were tiny, with pupil defects that made her struggle in bright light. Of course, she's a wonderful dog despite all that. She was Porkchop's favorite playmate before she moved away to California.

Forum: Mini-Challenges, Games, and Photo Stories 3 Days Ago  
Your Pet A Day.... (post up!)
Posted By scratchpaddy
Replies: 12,463
Views: 1,103,989
I never get tired of watching those two bicker over anything they can carry. :D I was hoping someone would ask about the lens, so thank you! :lol: It's another 16mm projector lens I found for $25 on eBay. It's a Simpson Optical 3in f/2 (3 inches is 75mm). I took it apart to see what the lens formula was, and found just two pieces of glass, a cemented doublet at each end. Basically a Petzval, which are also known for their swirl. I had to design and 3d-print my own adapter to use it, but it was worth it. I really like this lens, especially the colors it gives.



This dog threw me for a loop. I have seen red huskies before, but never a red merle! I looked it up, and apparently merle huskies are "a thing", but not recognized and strongly discouraged by breeding clubs due to the high risk of defects (deafness, blindness, immune disorders, etc) with the merle gene. Still... they are beautiful!

Forum: Lens Clubs 4 Days Ago  
The "Projector Lens" Club ...
Posted By scratchpaddy
Replies: 481
Views: 144,613
Looking forward to your results when you figure it out! I'd love to get one of those someday, but I'm not ready yet. On the one hand, they're cheap for a Leitz, but on the other, the normal asking prices seem pretty steep for a lens lacking a diaphragm, focus mechanism, or the means to attach to a camera.

I'm still on my 16mm film lens kick. I love these things. I found another for $25. I have many, many lenses, but this is my first American lens! It's a Simpson Optical Manufacturing Co, a.k.a. SOMCO 3in f/2 (3 inches is 75mm). I'm guessing it's from the mid-'60's. It strongly resembles a small flashlight.



I couldn't really find any info on the company or its lenses, so I did some original research here. I was hoping it would be a triplet, but it's not. It's a pair of cemented doublets, one at each end, basically the Petzval formula, 180 years old and counting.



It's very light, despite the brass construction, since it's so small and mostly empty. The back of the lens sits 15mm from the sensor for infinity focus. The rear element is recessed another 11mm deep in the lens tube, a total of 26mm from the sensor. I designed and 3d printed a one-piece adapter with an internal spiral to match the spiral groove on the body of the lens for focusing. The pitch of that spiral is only 1/8", or just over 3mm. That makes for very precise, but very slow, focusing. The image circle is not as big as I'd hoped, but no smaller than I had any right to expect on a lens designed for frames less than a third the size of my camera's sensor. This is uncropped on 35mm sensor.



I may have been hoping for triplet bubbles when I bought it, but the Petzval swirl I wound up with is fine with me. I'm a big swirly fan. :)



I love the colors it gives, rich and robust, and a joy to work with in post. The end results here may not look all that different from others I post, but the raw files this lens gives me are really pleasant no matter which way I pushed them. In comparison, the Soviet 16kp-1.2/50's colors are fun but inaccurate and sometimes bizarre, while the Singer is vaguely cold and unpleasant, and I struggled to get results I liked.



I blame the chrome plating extending all the way to the bottom edge of the lens for this big gold ring which appeared in backlit situations.



I'll be keeping this lens around for sure. If you can find one, I highly recommend it for users of APS-C or Micro-4/3 mirrorless cameras.

Forum: Mini-Challenges, Games, and Photo Stories 4 Days Ago  
Your Pet A Day.... (post up!)
Posted By scratchpaddy
Replies: 12,463
Views: 1,103,989
Sorry, Porkchop. What Jackson wants, Jackson gets.







Forum: Lens Clubs 6 Days Ago  
Soviet lenses club
Posted By scratchpaddy
Replies: 4,106
Views: 1,024,481
Another Helios 44, an early silver version. My copy was apparently made for export, engraved with the words "Made in USSR" in plain English. Still, the seller I bought it from eight years ago was in Ukraine.





Forum: Mini-Challenges, Games, and Photo Stories 09-16-2021, 05:50 PM  
=planes, trains, boats and automobiles=
Posted By scratchpaddy
Replies: 4,936
Views: 414,512
Where I live, Arizona used to do three letters + four numbers meaning nothing, just progressing through the alphabet as the years went on. Most states do it this way.

However, they just changed it to a completely random alphanumeric sequence. Any of the characters can be a letter, number, or space. Now all the cars purchased after then change look like they have vanity plates whose intended message can't quite be deciphered. The brain tries so hard to pull meaning from random gibberish. It freaked me out a little before I learned what was going on. I thought I was being surrounded by cultists or something. :lol:

Oh, I almost forgot. Nice car. :)
Forum: Mini-Challenges, Games, and Photo Stories 09-12-2021, 06:45 PM  
Your Pet A Day.... (post up!)
Posted By scratchpaddy
Replies: 12,463
Views: 1,103,989
This was in June, a picture I probably posted before. Best buddies Luna the shepherd and Atticus the corgi, five months old.



And this was yesterday. Obviously some grow faster than others. :lol: But it amazes me how much their faces have matured in only three months.



First picture is Samyang AF 85/1.4, second is Helios 44 58/2
Forum: General Talk 09-12-2021, 06:31 PM  
What music are you currently listening to?
Posted By scratchpaddy
Replies: 8,720
Views: 650,349
Loving - a Canadian folk rock trio. They are a current band, although you'd be forgiven for thinking otherwise when listening to their music.
















You Tube



Forum: Lens Clubs 09-10-2021, 04:54 PM  
The FA Un-Limited Club
Posted By scratchpaddy
Replies: 637
Views: 133,532
One day, we'll explain to our kids that computers used to have polished metal disks spinning thousands of times per minute, with little electromagnets swinging between them, reading and writing streaks of magnetic data... and they'll say, "whatever, Dad"



FA-100 F/2.8 Macro
Forum: Mini-Challenges, Games, and Photo Stories 09-08-2021, 07:38 PM  
Your Pet A Day.... (post up!)
Posted By scratchpaddy
Replies: 12,463
Views: 1,103,989
Some not-too-smart people brought their breakfast into the dog park Monday morning and set up on the... well, they may be known as picnic tables outside the park, but within, they are dog agility platforms. Of course the dogs had to investigate just like Luna there. :lol:

Unfortunately I didn't get a picture of the interrupted breakfast. I was over at the other end of the park, playing with the Ukranian classroom projector lens again (16KP-1.2/50).

Luna, my local Luna. Last pictures I posted of her, she was swimming in mud.



Bacchus the basset... gutsy to name your dog after the Roman god of wine and madness. Any other breed, I might be worried.



Noob knows how to pose. She always sets her ball down where the sun hits her just so.

Forum: Lens Clubs 09-08-2021, 06:49 PM  
The FA Limited Club
Posted By scratchpaddy
Replies: 11,362
Views: 1,999,300
Aww, thank you! I am not very brand loyal, I use lenses of all makes and ages, but I love Pentax colors, especially in the Limiteds. There's a lot you can do in post, but some lenses are just a headache to get something nice. I never have to struggle with the Limiteds.

As I get familiar with a lens, I'll subconsciously assign it a color, a shade which tends to come to the forefront if it's at all present in the picture. In my head, FA31 is pink, 77 is magenta. Bright, cheerful colors that make a good counterpoint to the green and gold scenes I like so much.

One more with the FA77 from the weekend before last. I don't know where Gus found all that mud, but he was pretty happy about it.

Forum: Mini-Challenges, Games, and Photo Stories 09-08-2021, 06:08 PM  
Thematic Street Photography (No, Not THAT Street Photography) - Share Your Shots of the Roads
Posted By scratchpaddy
Replies: 4,299
Views: 308,545
Your house, in the middle of your street?

Darn it, I've got Madness in my head now...
Forum: Mini-Challenges, Games, and Photo Stories 09-07-2021, 07:50 PM  
Thematic Classic motorbikes and cars thread.
Posted By scratchpaddy
Replies: 686
Views: 50,588
Art Deco



Pentax-A 50/1.2
Forum: Mini-Challenges, Games, and Photo Stories 09-07-2021, 05:48 PM  
=planes, trains, boats and automobiles=
Posted By scratchpaddy
Replies: 4,936
Views: 414,512
Well captured. I miss when cars had such color coordination. Ford seemed to stick with it longer than anyone else; when I was a little kid, we had a blue F-150 with blue velour seats, blue carpet, blue plastic dashboard... this was in the '90's.

They're going through a nostalgia phase with their Lincoln brand now, re-naming models with actual words again instead of the random three-letter combos they've been using, and I got pretty excited when I saw this at an auto show two years ago:



And this, I guess for those nostalgic for the '70's. Earth tones all day.



Where's my cigar?

Forum: Lens Clubs 09-06-2021, 05:54 PM  
Soviet lenses club
Posted By scratchpaddy
Replies: 4,106
Views: 1,024,481
Ok, back to my favorite topic: dogs... or wolves.... :confused:



16KP-1.2/50
Forum: Mini-Challenges, Games, and Photo Stories 09-06-2021, 04:17 PM  
Thematic The view upward (take part, please...)
Posted By scratchpaddy
Replies: 797
Views: 42,405
Intersection

Forum: Lens Clubs 09-06-2021, 04:14 PM  
The FA Limited Club
Posted By scratchpaddy
Replies: 11,362
Views: 1,999,300
FA31

Forum: Mini-Challenges, Games, and Photo Stories 09-06-2021, 04:03 PM  
=planes, trains, boats and automobiles=
Posted By scratchpaddy
Replies: 4,936
Views: 414,512
Before I read your text, I thought you would say "sometime last weekend." :lol: Awesome shots, and truly remarkable film.

I'm really enjoying the Big Boy captures from everyone else, too. :)

---------- Post added 09-06-21 at 04:12 PM ----------

I spotted this in my apartment's parking lot yesterday morning. A Porsche 911 GT3, I believe it's a 991.1. I have no idea what this $150,000 homologation supercar was doing here, in the part of the lot where the homeless spend the night sleeping in their (much less costly) cars. The tires alone cost $500 each, and they only last a few thousand miles, or a few days at the track.



Forum: Lens Clubs 09-05-2021, 03:01 PM  
The FA Limited Club
Posted By scratchpaddy
Replies: 11,362
Views: 1,999,300
FA31. I used this lens a lot when I first got it two years ago, but I prefer longer focal lengths, so it sat unused for a while. I kind of forgot how good it was. It's unusual to have such smooth rendering in a wide angle, and the effect is really pleasing.





Forum: Mini-Challenges, Games, and Photo Stories 09-05-2021, 02:54 PM  
Your Pet A Day.... (post up!)
Posted By scratchpaddy
Replies: 12,463
Views: 1,103,989
Slightly less wide-angle today... FA31 Limited

Porkchop's best friend at the park was Mika, the white Aussie who moved away last week. He's been pretty bummed about it, spending lots of time at the gate, waiting for her to return. :( Luckily, he has lots of other friends, like Gus here.





Forum: Lens Clubs 09-04-2021, 02:29 PM  
Takumar club
Posted By scratchpaddy
Replies: 18,050
Views: 3,522,558
Super-Takumar 24/3.5





Forum: Mini-Challenges, Games, and Photo Stories 09-04-2021, 02:25 PM  
Your Pet A Day.... (post up!)
Posted By scratchpaddy
Replies: 12,463
Views: 1,103,989
Wide-angle weekend... Super Takumar 24/3.5

I haven't seen this couple and their dog Zoe (in the background) for a while. Turns out they got a new puppy, Dawn. 14 weeks old, this was her first trip to the dog park.



Merlin the Vizsla

Forum: Mini-Challenges, Games, and Photo Stories 09-04-2021, 02:15 PM  
Thematic Street Photography (No, Not THAT Street Photography) - Share Your Shots of the Roads
Posted By scratchpaddy
Replies: 4,299
Views: 308,545
This crossing brought to you by Wonder Bread®
Forum: Mini-Challenges, Games, and Photo Stories 09-01-2021, 06:39 PM  
Thematic Night Time is the Right Time! Post night shots here.
Posted By scratchpaddy
Replies: 1,491
Views: 146,574
That building looks really goofy to me. Like a Greek temple on top of an early-20th-century office building.

Ok, I looked it up. The Civil Courts Building, built 1928-1930. The top is based on the Mausoleum at Halicarnassus, built in 350 BC for the body of a dude named Mausolus. This is the origin of the word "Mausoleum." Its construction was ordered by his widow Artemisia II, who was also his sister. I understand we associate columns with courts, but is it not odd to model a court after a tomb?

I like your picture, though. Thanks for giving me something interesting to look up. :)
Search took 0.02 seconds | Showing results 1 to 25 of 300

 
Forum Jump


All times are GMT -7. The time now is 05:52 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top