Pages: 1 ... 235 236 [237] 238 239 ... 909   Go Down

Author Topic: Bear Pit: now the sole domicile of politics at LuLa  (Read 1295758 times)

James Clark

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 2347
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4720 on: December 22, 2020, 01:55:00 pm »

I did provide a better explanation.

Well, you gave a *different* explanation (that was incomplete as was Alan's, but we're not writing dissertations here), but, like Alan, you were also nominally correct.  No big deal...
Logged

James Clark

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 2347
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4721 on: December 22, 2020, 01:56:24 pm »

Those Lincoln Project videos are great. Though some are better than others, I haven't seen a bad one yet. They sure beat the usual generic drivel of some guy walking down a path in the park with his wife and two kids talking about American values and whatnot. I bet they have a bunch of them where they just change the voice over, and the part where the guy says he approves this message. For all I know, they use the same one for Antifa and the Proud Boys. They all seem to be the same to me. Maybe that's because I put the TV on mute whenever one of them comes on.

Republicans are much, much, better at soundbites than liberals are, for whatever reason. 
Logged

faberryman

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 4851
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4722 on: December 22, 2020, 02:00:51 pm »

I did provide a better explanation.

I think you did too, but I wanted to hold up my end of the conversation, so I just threw in my two cents worth, not that it added much. I'm not sure I was even "nominally" correct, but I think I was, but only about one small aspect of the subject, which I'm am pretty sure everyone knew about already.
Logged

digitaldog

  • Sr. Member
  • ****
  • Online Online
  • Posts: 21647
  • Andrew Rodney
    • http://www.digitaldog.net/
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4723 on: December 22, 2020, 02:10:57 pm »

Well, you gave a *different* explanation (that was incomplete as was Alan's, but we're not writing dissertations here), but, like Alan, you were also nominally correct.  No big deal...
No, I did not. I provided a link to an expert on the subject, from one of the fellows who broke the code: Elvin Urquhart. If you don't agree with this, try taking it up with him, (good luck). Seems you didn't read what the fellow who broke the code stated and incorrectly attributed to me so maybe you should try again:

Elvin Urquhart was a code breaker who helped the United States Navy break the Japanese Navy General Operational Code, or JN25, during World War II.

According to Urquhart, the Japanese used a system of syllabic writing called Kana in their code. Because the Japanese script could not be transmitted over the wire, the Japanese used the Latin alphabet instead, paring letters to transliterate the Japanese language. The American code breakers were able to figure out the Japanese code for “ship”. Then, by comparing the huge volume of intercepted communications, the code breakers gradually came to understand the secrets underlying JN25. They broke the code.

I wish I could give a better explanation, because it's fascinating stuff, but that's my basic recollection from prior studies.
If you actually go back study the history, maybe you could...  ;)
« Last Edit: December 22, 2020, 02:15:04 pm by digitaldog »
Logged
http://www.digitaldog.net/
Author "Color Management for Photographers".

Craig Lamson

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 3264
    • Craig Lamson Photo Homepage
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4724 on: December 22, 2020, 02:19:51 pm »

Well, you gave a *different* explanation (that was incomplete as was Alan's, but we're not writing dissertations here), but, like Alan, you were also nominally correct.  No big deal...

James, the craziest thing you will ever see done with a Caterham...
https://www.youtube.com/watch?v=3ZmoFfYCzKw
Logged
Craig Lamson Photo

James Clark

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 2347
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4725 on: December 22, 2020, 02:36:33 pm »

James, the craziest thing you will ever see done with a Caterham...
https://www.youtube.com/watch?v=3ZmoFfYCzKw

HA!  Someone else sent that to me a day or so back :)  The one they're apparently using is a dead ringer for the one I had (minus the rally lights).  (Windscreen is off in this pic b/c it's basically a giant airbrake.)

« Last Edit: December 22, 2020, 02:48:34 pm by James Clark »
Logged

James Clark

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 2347
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4726 on: December 22, 2020, 02:43:32 pm »

No, I did not. I provided a link to an expert on the subject, from one of the fellows who broke the code: Elvin Urquhart. If you don't agree with this, try taking it up with him, (good luck). Seems you didn't read what the fellow who broke the code stated and incorrectly attributed to me so maybe you should try again:

Elvin Urquhart was a code breaker who helped the United States Navy break the Japanese Navy General Operational Code, or JN25, during World War II.

According to Urquhart, the Japanese used a system of syllabic writing called Kana in their code. Because the Japanese script could not be transmitted over the wire, the Japanese used the Latin alphabet instead, paring letters to transliterate the Japanese language. The American code breakers were able to figure out the Japanese code for “ship”. Then, by comparing the huge volume of intercepted communications, the code breakers gradually came to understand the secrets underlying JN25. They broke the code.
If you actually go back study the history, maybe you could...  ;)

Not only did I read it, I'm familiar with the history and didn't attribute it to anyone but the author.  Let me clarify.  I'm not saying you're wrong.  I'm not saying Urquhart is wrong.  I *am* saying Alan is *not* wrong, and that Urquhart (via your link), Alan, myself, you, Frank etc. are all presenting correct, but incomplete pieces of the puzzle, because, you know, we're dashing off 4 sentence bits of chat on teh Internets.  What Urquhart says does NOT contradict what Alan said, and what Alan said does NOT render incorrect what Urqhart said. 

I did state up front that I was offering a "basic" explanation - I'm not sure what your issue is. 

Incidentally, I have a B.A. in history, 1994, American concentration.
« Last Edit: December 22, 2020, 02:54:34 pm by James Clark »
Logged

digitaldog

  • Sr. Member
  • ****
  • Online Online
  • Posts: 21647
  • Andrew Rodney
    • http://www.digitaldog.net/
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4727 on: December 22, 2020, 03:00:35 pm »

Not only did I read it, I'm familiar with the history and didn't attribute it to anyone but the author.  Let me clarify.  I'm not saying you're wrong. 
I'm not saying anything that's right or wrong, I'm providing an explanation directly from the guy who cracked the code.
Quote
Well, you gave a *different* explanation 
No I did not. Urquhart did.
Quote
I'm not saying Urquhart is wrong.  I *am* saying Alan is *not* wrong, and that Urquhart (via your link), Alan, myself, you, Frank etc. are all presenting correct, but incomplete pieces of the puzzle, because, you know, we're dashing off 4 sentence bits of chat on teh Internets.  What Urquhart says does NOT contradict what Alan said, and what Alan said does NOT render incorrect what Urqhart said. 
Fill in Urquhart's incomplete pieces. Provide data that what Alan specifically said is accurate as he cannot.
Quote
Incidentally, I have a B.A in history, 1994, American concentration.
How is Alan right, and where is his proof? I provided mine.
As for your B.A. that's terrific (mine's in photography), my comment was directed to your admission of "my basic recollection from prior studies."
I have zero recollection from prior studies of Urquhart, I only studied Urquhart today, having to so often fact check Alan.
Logged
http://www.digitaldog.net/
Author "Color Management for Photographers".

TechTalk

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 3628
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4728 on: December 22, 2020, 03:06:55 pm »

EArly Japanese codes were broken because of style.  If I recall correctly, they always started off a transmission using weather or some other standard words.  Just to check the communications link.  Codebreakers knew what those words were and were able to work backward from that to help break the rest of the message encryption or codes. 

Wrong country. It was an early insight, gained by codebreakers at Bletchley Park in England, into German code.

The Bletchley Park team would guess some of the plaintext based upon when the message was sent, and by recognizing routine operational messages. For instance, a daily weather report was transmitted by the Germans at the same time every day. Due to the regimented style of military reports, it would contain the word Wetter (German for "weather") at the same location in every message. (Knowing the local weather conditions helped Bletchley Park guess other parts of the plaintext as well.) Other operators, too, would send standard salutations or introductions. An officer stationed in the Qattara Depression consistently reported that he had nothing to report. "Heil Hitler," occurring at the end of a message, is another well-known example.

https://en.wikipedia.org/wiki/Known-plaintext_attack

It's an example of the crib-based decryption which was used at Bletchley Park to break German Enigma code.

Stereotypical messages included Keine besonderen Ereignisse (literally, "no special occurrences"—perhaps better translated as "nothing to report"), An die Gruppe ("to the group") and a number that came from weather stations such as weub null seqs null null ("weather survey 0600"). This was actually rendered as WEUBYYNULLSEQSNULLNULL. The word WEUB being short for Wetterübersicht, YY was used as a separator and SEQS was common abbreviation of sechs (German for "six"). As another example, Field Marshal Erwin Rommel's Quartermaster started all of his messages to his commander with the same formal introduction.

https://en.wikipedia.org/wiki/Cryptanalysis_of_the_Enigma#Crib-based_decryption

The discovery of these repetitive phrases is a scene in the movie The Imitation Game about Alan Turing that faberryman mentioned previously. Perhaps Alan saw the movie and is remembering it incorrectly, confusing it with Japanese code breaking.


Logged
Respice, adspice, prospice - Look to the past, the present, the future

faberryman

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 4851
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4729 on: December 22, 2020, 03:12:11 pm »

I learned something today. Did you know that Elvin Urquhart worked at Station Hypo when he was breaking the Japanese code? Sort of interesting that we would be talking about Elvin Urquhart on a photography forum, but there's the connection.

I have to admit to myself that I will probably forget about Elvin Urquhart by tomorrow, most likely because I won't be able to remember how to spell his name, and won't be able to even come close enough for Google to guess who I am trying to look up.

Speaking of secret codes, did you know we used to use the Navajo language as code. One Navajo would be at one end and another Navajo would be at the other end and they would be speaking Navajo and nobody listening in could ever figure out what they were talking about. They were called the Navajo code talkers. I remember because Trump had them up to the White House once and started in on Elizabeth Warren for some reason and kept referring to her as Pocahontas, which might not have been the most sensitive thing to do when you were honoring some pretty special Native Americans.
« Last Edit: December 22, 2020, 03:40:56 pm by faberryman »
Logged

James Clark

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 2347
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4730 on: December 22, 2020, 03:18:40 pm »

Wrong country. It was an early insight, gained by codebreakers at Bletchley Park in England, into German code.

The Bletchley Park team would guess some of the plaintext based upon when the message was sent, and by recognizing routine operational messages. For instance, a daily weather report was transmitted by the Germans at the same time every day. Due to the regimented style of military reports, it would contain the word Wetter (German for "weather") at the same location in every message. (Knowing the local weather conditions helped Bletchley Park guess other parts of the plaintext as well.) Other operators, too, would send standard salutations or introductions. An officer stationed in the Qattara Depression consistently reported that he had nothing to report. "Heil Hitler," occurring at the end of a message, is another well-known example.

https://en.wikipedia.org/wiki/Known-plaintext_attack

It's an example of the crib-based decryption which was used at Bletchley Park to break German Enigma code.

Stereotypical messages included Keine besonderen Ereignisse (literally, "no special occurrences"—perhaps better translated as "nothing to report"), An die Gruppe ("to the group") and a number that came from weather stations such as weub null seqs null null ("weather survey 0600"). This was actually rendered as WEUBYYNULLSEQSNULLNULL. The word WEUB being short for Wetterübersicht, YY was used as a separator and SEQS was common abbreviation of sechs (German for "six"). As another example, Field Marshal Erwin Rommel's Quartermaster started all of his messages to his commander with the same formal introduction.

https://en.wikipedia.org/wiki/Cryptanalysis_of_the_Enigma#Crib-based_decryption

The discovery of these repetitive phrases is a scene in the movie The Imitation Game about Alan Turing that faberryman mentioned previously. Perhaps Alan saw the movie and is remembering it incorrectly, confusing it with Japanese code breaking.

Same thing was done in the Pacific, and, I suspect, in most codebreaking that not strictly decryption?  Usage patterns, known phraseology (is that a word?), etc were all parsed to give context to messages and then the number crunchers went to work.  It just hasn't gotten the movie treatment yet ;).  I *think* I 'm remembering that that's how they identified Midway - by feeding a known operator a fake weather report, and then tricking that person/station into repeating it and confirming the location of the "bad weather."
Logged

James Clark

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 2347
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4731 on: December 22, 2020, 03:25:26 pm »

I'm not saying anything that's right or wrong, I'm providing an explanation directly from the guy who cracked the code. No I did not. Urquhart did. Fill in Urquhart's incomplete pieces. Provide data that what Alan specifically said is accurate as he cannot. How is Alan right, and where is his proof? I provided mine.
As for your B.A. that's terrific (mine's in photography), my comment was directed to your admission of "my basic recollection from prior studies."
I have zero recollection from prior studies of Urquhart, I only studied Urquhart today, having to so often fact check Alan.

Dude, it would take a novel to "fill in" Urqhart's incomplete pieces.  Again, that's not a slam on Urqhart, or you - it's just the nature of the medium and that fact that we're dealing with a years-long process being explained in 2 sentences :).  All I'm saying is that there's more to it than "We crunched the numbers and broke the code," and *part* of that other stuff is the context of the messages they intercepted. 

Then you made a snitty remark or two  ("good luck" & "go back and study history") about my qualifications for debating/adding to Urquart's explanation.  That seemed egregious to me, since you actually had no idea about my qualifications for expanding on what Urqhart said.
Logged

TechTalk

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 3628
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4732 on: December 22, 2020, 03:29:00 pm »

Same thing was done in the Pacific, and, I suspect, in most codebreaking that not strictly decryption?  Usage patterns, known phraseology (is that a word?), etc were all parsed to give context to messages and then the number crunchers went to work.  It just hasn't gotten the movie treatment yet ;).  I *think* I 'm remembering that that's how they identified Midway - by feeding a known operator a fake weather report, and then tricking that person/station into repeating it and confirming the location of the "bad weather."

The ruse for Midway was a message sent by the U.S. Navy regarding problems with fresh water at Midway.

Japanese traffic was intercepted regarding a new offensive operation being planned against a target only identified as af. LCDR Wilfred J. Holmes at hypo was responsible for the ruse which identified af: a false report of a fresh water shortage on Midway was radioed in clear, evoking an encrypted Japanese response noting that af was reporting water troubles; af had to be Midway.

https://en.wikipedia.org/wiki/Station_HYPO

The Japanese code breaking team was featured very prominently in the 2019 movie version of Midway. Perhaps Alan has been watching a lot of movies lately and got the 2014 The Imitation Game confused with the 2019 Midway movie.

Logged
Respice, adspice, prospice - Look to the past, the present, the future

James Clark

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 2347
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4733 on: December 22, 2020, 03:33:25 pm »

The ruse for Midway was a message sent by the U.S. Navy regarding problems with fresh water at Midway.

Japanese traffic was intercepted regarding a new offensive operation being planned against a target only identified as af. LCDR Wilfred J. Holmes at hypo was responsible for the ruse which identified af: a false report of a fresh water shortage on Midway was radioed in clear, evoking an encrypted Japanese response noting that af was reporting water troubles; af had to be Midway.

https://en.wikipedia.org/wiki/Station_HYPO

Yep - that's it!

The Japanese code breaking team was featured very prominently in the 2019 movie version of Midway. Perhaps Alan has been watching a lot of movies lately and got the 2014 The Imitation Game confused with the 2019 Midway movie.

I don't remember that one (Midway).  It seems to get some poor-ish reviews.
Logged

digitaldog

  • Sr. Member
  • ****
  • Online Online
  • Posts: 21647
  • Andrew Rodney
    • http://www.digitaldog.net/
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4734 on: December 22, 2020, 03:35:37 pm »

Dude, it would take a novel to "fill in" Urqhart's incomplete pieces. 
Dude, why not provide a paragraph or two, I don't need nor expect a novel.
Quote
All I'm saying is that there's more to it than "We crunched the numbers and broke the code," and *part* of that other stuff is the context of the messages they intercepted.
No debate, the debate is what Alan told us, without any proof, outside reference, of which you said was nominally correct. I don't expect a novel, I'd like an example of what he said being factual from an outside reference as I provided.
Quote
That seemed egregious to me, since you actually had no idea about my qualifications for expanding on what Urqhart said.
Actually your qualifications are moot, as are mine. Facts are not. Alan made a statement, I'm not certain it's valid and the data I uncovered and provided seems to suggest he's not. Now maybe you have some outside reference/data that you can provide that backs up what he said. That's all I'm asking. You can aid in Alan's fact check for him, he will not, or you maybe you can't which is far more a reflection on him than you. But again, after pages here, actually years of reading his posts, I find I have to fact check him and when doing so, he's kind of out in the weeds. I don't believe I'm the only one here with that experience but I'll let others speak for themselves.
How nominally correct is he?
Logged
http://www.digitaldog.net/
Author "Color Management for Photographers".

TechTalk

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 3628
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4735 on: December 22, 2020, 03:36:44 pm »

Yep - that's it!

I don't remember that one (Midway).  It seems to get some poor-ish reviews.

The 2019 Midway version focused a good deal of attention on codebreaker Joseph Rochefort. He's an interesting character in the movie and in real life.

https://en.wikipedia.org/wiki/Joseph_Rochefort
Logged
Respice, adspice, prospice - Look to the past, the present, the future

Chris Kern

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 2204
    • Chris Kern's Eponymous Website
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4736 on: December 22, 2020, 04:34:22 pm »

For those of you interested in code-breaking, the fourth panel of Kryptos is waiting for you.  Go to work on solving it now and you will be able to keep yourself occupied until the pandemic is just a bad memory.

faberryman

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 4851
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4737 on: December 22, 2020, 04:35:30 pm »

Actually your qualifications are moot, as are mine.

Right. Nobody really knows anybody's qualifications. Oh sure, we have an inking of what some peoples' qualifications are, like Craig shoots RVs and used to have a studio big enough to get a boat into, but maybe not big enough for him to wax it once he got it in there, but who knows, Craig may have a Ph.D. in botany, and be the foremost authority in the world on carnivorous plants. Fortunately, we don't have to post our resumes. That would be worse than having to use our real names or having to disclose the country of our birth or residence. People would make all sorts of assumptions, mostly wrong. Forget all that. Just look at the guy's posts and determine if he knows (or can look up) facts that are actually true, can reason logically, express himself coherently (spelling and punctuation aside), and has an open mind. That is really all that is needed. I'll keep my qualifications, if I have any, to myself. They are irrelevant.
« Last Edit: December 22, 2020, 07:51:22 pm by faberryman »
Logged

James Clark

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 2347
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4738 on: December 22, 2020, 05:38:06 pm »

Dude, why not provide a paragraph or two, I don't need nor expect a novel. No debate, the debate is what Alan told us, without any proof, outside reference, of which you said was nominally correct. I don't expect a novel, I'd like an example of what he said being factual from an outside reference as I provided.

Well, ok.  Here's what Alan said, in total:

Quote
Early Japanese codes were broken because of style.  If I recall correctly, they always started off a transmission using weather or some other standard words.  Just to check the communications link.  Codebreakers knew what those words were and were able to work backward from that to help break the rest of the message encryption or codes.


There are a bunch of things you could pick apart in that statement if you really wanted to.  Which codes (JN25 wasn't the only one they used)? Were they broken *solely* because of "style?"  What does "style" even mean - the "hand" signature?  The word choice? The sign off?   All of these are valid questions, but the fact remains that the general statement that, "Codebreakers knew what those words were and were able to work backward from that to help break the rest of the message encryption or codes..." is a reasonable generalization, even within the context of the Urqhard quote your provided. Quoth Urqhart:

Quote
The American code breakers were able to figure out the Japanese code for “ship”. Then, by comparing the huge volume of intercepted communications, the code breakers gradually came to understand the secrets underlying JN25.


How did they figure out the code for "ship?" How did they put that word into context by using a "huge volume" of other intercepted communications?  How did they find patterns in those communications that allowed the final deconstruction of the code?

Alan may be confusing that story with the Enigma story at Bletchley Park, but even if that's the case, I can argue the technicality and point out that the Japanese also used a version of Enigma and those codes were also broken at Bletchley Park ;)

Actually your qualifications are moot, as are mine. Facts are not.

Sort of, but my "qualifications" such as they are are relevant when my "qualifications" directly apply to my knowledge of the subject, especially when we're debating a fairly generalized statement such as the one Alan made.  For context, suppose someone said, "Photographers love taking pictures in Santa Fe these days because aspens are super-cool."  Then someone pops in and says, "Bullshit" and posts a quote about how Colorado has killer aspens.  Then you come in and say, "No, people pretty much still dig the aspens in Santa Fe too," and then I get all agitated and tell you to prove it, and further make a comment to you like, "maybe if you ever actually bothered to go to Santa Fe you'd be better qualified to offer an opinion.  Maybe," not realizing that you live there and do significant photography work there and might - just might - have a clue what you're talking about. :). (And if nobody actually shoots the aspens in Santa Fe, well, then, I suck, but I love the Aspen trail up on the way to the ski area. :(  )

See what I'm getting at here?  But I digress...


I'm not certain it's valid and the data I uncovered and provided seems to suggest he's not.

Here's the crux - what you posted doesn't actually suggest that. It describes one part of the decryption history. It doesn't claim to present the whole story, and there's plenty of room for both Urqhart's statement AND Alan's.

Now maybe you have some outside reference/data that you can provide that backs up what he said. That's all I'm asking.

If you really need me to I'll go back and dig into the subject, but I'm comfortable taking the W on the Enigma technicality ;)

But again, after pages here, actually years of reading his posts, I find I have to fact check him and when doing so, he's kind of out in the weeds. I don't believe I'm the only one here with that experience but I'll let others speak for themselves.

No, I get it.  You're presupposing that Alan is wrong and that he was speaking off the cuff without factual knowledge of what he's saying.  I can't deny that happens, but in this case, I don't think it did.

How nominally correct is he?

In my opinion, his statement reads as incomplete, but accurate to the extent that some unspecified aspects of non-mathematical/non-mechnical evaluation helped break some Japanese codes before and during WWII.
« Last Edit: December 22, 2020, 06:05:13 pm by James Clark »
Logged

digitaldog

  • Sr. Member
  • ****
  • Online Online
  • Posts: 21647
  • Andrew Rodney
    • http://www.digitaldog.net/
Re: Bear Pit: now the sole domicile of politics at LuLa
« Reply #4739 on: December 22, 2020, 05:48:04 pm »

Quote
Alan may be confusing that story with the Enigma story at Bletchley Park, but even if that's the case, I can argue the technicality and point out that the Japanese also used a version of Enigma and those codes were also broken at Bletchley Park ;)
Confusing, yes exactly. I think that's been well established.
Logged
http://www.digitaldog.net/
Author "Color Management for Photographers".
Pages: 1 ... 235 236 [237] 238 239 ... 909   Go Up