Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version 23 Likes Search this Thread
06-14-2022, 07:33 AM - 1 Like   #31
Pentaxian
titrisol's Avatar

Join Date: Dec 2007
Location: In the most populated state... state of denial
Photos: Gallery | Albums
Posts: 1,854
True, Asahi Optical made lenses and polished glass for others. They sold projection lenses (AOCO brand) and made lenses for the military. I think they supplied Minolta (Molta) with Lenses before the war

After the war and reconstruction, Asahi began making binoculars and lens components (glass)
Then in 1950-51 they began making cameras and the Asahiflex IIb was an espectacular success with the instant return mirror.
The rest is history

QuoteOriginally posted by LesDMess Quote
All topics do get recycled when new folks find the forum or equipment or forget then re-remember . . .

Myself, I was really more interested in the development history of how they even came to decide that a titanium foil had to be used in the first place. As far as I can tell, Nikon was the first to do this and apparently as part of the Nikon F development - SLR with mirror lockup. Which seems odd to me as the window of opportunity to burn the shutter curtain seems narrow compared to their rangefinder where there is no mirror to protect it. Anyway, Nikon developed it for their F first and then rolled it into their rangefinder after since those two models share the exact same shutter system.

For those who didn't know, Nikon and Canon - and all other camera companies except Pentax, were making rangefinders first before they made an SLR. As far as I can tell Pentax was the only camera company that never made a rangefinder. Anyway, Nikon and Canon saw the writing on the wall when Leica released the M series that they no longer had a market in rangefinders and saw that Pentax solved the blank viewfinder problem and tried to release an SLR ASAP. Nikon took the quickest route by retrofitting a mirror box into their rangefinder to produce the F. In complete contrast to Nikon's success was Canon's spectacular failure with their first SLR - the Canonflex.


06-14-2022, 08:07 AM   #32
Pentaxian
reh321's Avatar

Join Date: Nov 2014
Location: South Bend, IN, USA
Photos: Gallery | Albums
Posts: 23,185
QuoteOriginally posted by LesDMess Quote
All topics do get recycled when new folks find the forum or equipment or forget then re-remember . . .

Myself, I was really more interested in the development history of how they even came to decide that a titanium foil had to be used in the first place. As far as I can tell, Nikon was the first to do this and apparently as part of the Nikon F development - SLR with mirror lockup. Which seems odd to me as the window of opportunity to burn the shutter curtain seems narrow compared to their rangefinder where there is no mirror to protect it. Anyway, Nikon developed it for their F first and then rolled it into their rangefinder after since those two models share the exact same shutter system.

For those who didn't know, Nikon and Canon - and all other camera companies except Pentax, were making rangefinders first before they made an SLR. As far as I can tell Pentax was the only camera company that never made a rangefinder. Anyway, Nikon and Canon saw the writing on the wall when Leica released the M series that they no longer had a market in rangefinders and saw that Pentax solved the blank viewfinder problem and tried to release an SLR ASAP. Nikon took the quickest route by retrofitting a mirror box into their rangefinder to produce the F. In complete contrast to Nikon's success was Canon's spectacular failure with their first SLR - the Canonflex.
My second rangefinder camera was made by Canon - but it had a fixed lens and a leaf shutter in that lens. I rejected a Praktica camera that was ‘klunky’ in my view. Most likely it was no noisier than a Pentax Spotmatic or K1000, and most likely the noise was the result of its being a totally mechanical camera. My next camera was a partially electronic Pentax ME/SE; it was noisier than the whisper quiet rangefinder camera, but by then I valued the flexibility of being able to chose focal length of lenses, and I’m guessing most of the noise came from moving the mirror around.
06-14-2022, 01:21 PM   #33
Loyal Site Supporter
Loyal Site Supporter




Join Date: Nov 2015
Photos: Albums
Posts: 4,225
QuoteOriginally posted by Wheatfield Quote
I recall with many of the lenses that they were simply taking West German lenses and copying them via reverse engineering, so no surprise there are some pretty good lenses from the old Soviet era.
They were stealing the best technology of the day.
There's a long history of theft in photography... ask Daguerre and Talbot

Even the Japanese rangefinders are often accused of copying the Germans, as are the Japanese folders from nearly 100 years ago.

And if I remember right, there was a Japanese company accused of copying a German idea to couple an instant return mirror with a pentaprism... I'm not sure whatever became of that

-Eric
06-14-2022, 05:43 PM   #34
Pentaxian
titrisol's Avatar

Join Date: Dec 2007
Location: In the most populated state... state of denial
Photos: Gallery | Albums
Posts: 1,854
QuoteOriginally posted by Wheatfield Quote
I recall with many of the lenses that they were simply taking West German lenses and copying them via reverse engineering, so no surprise there are some pretty good lenses from the old Soviet era.
They were stealing the best technology of the day.
After the war Soviets moved machines and engineers to the USSR, making the Kiev and FED cameras identical copies to the German counterparts.
The first batches even used German parts, and German glass was used in the soviet lenses almost until 1950


Last edited by titrisol; 06-15-2022 at 11:44 AM.
06-14-2022, 06:17 PM - 1 Like   #35
Pentaxian




Join Date: Apr 2012
Posts: 1,312
Original Poster
QuoteOriginally posted by Wheatfield Quote
I recall with many of the lenses that they were simply taking West German lenses and copying them via reverse engineering, so no surprise there are some pretty good lenses from the old Soviet era.
They were stealing the best technology of the day.
I read from somewhere that, some of the lenses in the early days were actually original German made that captured during the war, but in very small amount.
06-14-2022, 06:35 PM - 1 Like   #36
Moderator
Loyal Site Supporter
Wheatfield's Avatar

Join Date: Apr 2008
Location: The wheatfields of Canada
Posts: 15,987
QuoteOriginally posted by TwoUptons Quote
There's a long history of theft in photography... ask Daguerre and Talbot

Even the Japanese rangefinders are often accused of copying the Germans, as are the Japanese folders from nearly 100 years ago.

And if I remember right, there was a Japanese company accused of copying a German idea to couple an instant return mirror with a pentaprism... I'm not sure whatever became of that

-Eric
Whataboutism at it's finest, I suppose.
06-15-2022, 05:17 PM   #37
cpk
Site Supporter
Site Supporter
cpk's Avatar

Join Date: Feb 2010
Location: Montreal
Posts: 641
QuoteOriginally posted by TwoUptons Quote
Even the Japanese rangefinders are often accused of copying the Germans, as are the Japanese folders from nearly 100 years ago.
I heard that after the war the Germans lost all their patents; so, although the Japanese companies copied the German rangefinders, they were not breaking any laws. They copied and then improved on the German originals. Nikon copied the Contax and Canon, the Leica. I had a Nikon M3 and an SP. Both had the little focus wheel which was a part of the Contax body, although it was limited as to what lenses on which it could be used, probably the same as the original.

06-20-2022, 03:51 AM   #38
Pentaxian
nickthetasmaniac's Avatar

Join Date: Dec 2008
Posts: 2,361
QuoteOriginally posted by TwoUptons Quote
Even the Japanese rangefinders are often accused of copying the Germans, as are the Japanese folders from nearly 100 years ago.
The Japanese rangefinder weren't accused of copying the Germans, they *did* copy the Germans. As cpk points out, many German patents were ‘confiscated’ during the World War II reparations. During the post-war period cameras like the Leica III were basically open source for others to copy (and in some cases improve). This is also why there were never any Leica M copies (which was a post-war development).

Note that it wasn’t just the Japanese doing this, there were some excellent Leica copies from the US (Kardon) and UK (Reid), as well as the Soviets (Zorki/FED) and Chinese (Shanghai).
06-20-2022, 06:09 AM   #39
Pentaxian
reh321's Avatar

Join Date: Nov 2014
Location: South Bend, IN, USA
Photos: Gallery | Albums
Posts: 23,185
QuoteOriginally posted by nickthetasmaniac Quote
The Japanese rangefinder weren't accused of copying the Germans, they *did* copy the Germans. As cpk points out, many German patents were ‘confiscated’ during the World War II reparations. During the post-war period cameras like the Leica III were basically open source for others to copy (and in some cases improve). This is also why there were never any Leica M copies (which was a post-war development).

Note that it wasn’t just the Japanese doing this, there were some excellent Leica copies from the US (Kardon) and UK (Reid), as well as the Soviets (Zorki/FED) and Chinese (Shanghai).
and other Japanese companies used methods to accomplish different ends that worked well.
I had two Japanese rangefinder cameras - one from Yashica and one from Canon - that used leaf shutters in the lens.
The lens was not removable in either case, but the camera met the goal of ‘taking pictures’ just fine.
06-20-2022, 08:12 AM - 3 Likes   #40
Site Supporter
Site Supporter
ChrisPlatt's Avatar

Join Date: Nov 2007
Location: Rockaway Beach NYC
Posts: 7,697
Copying? That's nothing!:

http://www.zeisscamera.com/articles_blackhole.shtml

Chris
06-20-2022, 05:57 PM   #41
Pentaxian




Join Date: May 2011
Location: Santa Cruz, CA
Photos: Albums
Posts: 3,235
QuoteOriginally posted by ChrisPlatt Quote
I really enjoy reading those types of camera stories.
I'm really amazed how Germany is today considering two wars!
06-20-2022, 06:04 PM   #42
Site Supporter
Site Supporter
ChrisPlatt's Avatar

Join Date: Nov 2007
Location: Rockaway Beach NYC
Posts: 7,697
QuoteOriginally posted by LesDMess Quote
I really enjoy reading those types of camera stories.
I'm really amazed how Germany is today considering two wars!

Not to mention occupation, partition and reunification...

Chris
06-24-2022, 05:29 AM   #43
Pentaxian
titrisol's Avatar

Join Date: Dec 2007
Location: In the most populated state... state of denial
Photos: Gallery | Albums
Posts: 1,854
QuoteOriginally posted by LesDMess Quote
I really enjoy reading those types of camera stories.
I'm really amazed how Germany is today considering two wars!
2 in the 20th century, plus many more before that.
09-03-2022, 03:30 PM   #44
Forum Member




Join Date: Apr 2022
Posts: 59
QuoteOriginally posted by arnold Quote
Regarding cloth shutters, I have found that the ribbons let go when they get old. I had an "SV" and a "K", both recently serviced and in good condition, have a shutter ribbon let go. I suppose the glues used could be the weak spot with these. As a non related side note, my MX, never serviced since I bought it in 1977, finally had mirror problems. I sent it in to a local service fellow in Queensland. The quote for a "restoration" AUD 425.60 (US $300). Since I have an emotional history with the camera, I gave the OK. However, it can be seen that repairs far exceed the value of most cameras.
How was the repair job in the end?
I too am in QLD and wonder if you sent it to F16 for repairs?

Good to know there's a local guy and more so people that can and will work on the MX bodies, unlike the LX from what I've read. Helps in decision making between cameras and future proofing.

Pretty wild that repairs are more expensive than buying a new camera, fair enough though for time, labour and skills that are somewhat rare.
09-03-2022, 05:59 PM   #45
Loyal Site Supporter
Loyal Site Supporter




Join Date: Nov 2015
Photos: Albums
Posts: 4,225
QuoteOriginally posted by grimnicholas Quote
How was the repair job in the end?
I too am in QLD and wonder if you sent it to F16 for repairs?

Good to know there's a local guy and more so people that can and will work on the MX bodies, unlike the LX from what I've read. Helps in decision making between cameras and future proofing.

Pretty wild that repairs are more expensive than buying a new camera, fair enough though for time, labour and skills that are somewhat rare.
That's the trick, though, isn't it...
Repairs aren't more expensive than buying a new camera...
they are more expensive than buying an old camera...
Nobody makes new ones...

But as long as most of the old ones still work, it does make the equation different...

I just paid $200 to get my Grandfather's old camera fixed. As a side note, that one had a metal shutter that needed work...
If it hadn't been his, I would have just bought another one... but sentiment is a powerful force.

-Eric
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
camera, cloth, cost, curtain, film, kx, leak, light, mx, post, reliability of cloth, shutter, shutters, slr, tendency

Similar Threads
Thread Thread Starter Forum Replies Last Post
Misc Man of the Cloth. DW58 Post Your Photos! 4 09-02-2018 05:55 PM
Source for DIY light seal, cover, shutter cloth, etc. replacement kits dsmithhfx Film SLRs and Compact Film Cameras 7 04-19-2016 06:27 PM
645z Shutter Reliability orbitalpunk Pentax Medium Format 7 12-28-2015 11:59 AM
Remote Control F, Card Reader, Card, Strap & Cloth $19.99 at Henry's pete-tarmigan Pentax Price Watch 7 02-07-2013 11:00 AM
Shutter speed reliability over time-is electronic better? Just1MoreDave Film SLRs and Compact Film Cameras 14 01-26-2009 03:07 PM



All times are GMT -7. The time now is 09:53 PM. | 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