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  1. #81
    lxdude's Avatar
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    Quote Originally Posted by Dan Fromm View Post
    The 1966 SOHC Repco-Brabham engine with which Jack Brabham won the 1966 F1 drivers' championship was built around a highly modified GM block but was far, far from the pushrod GM engine. The 1967 SOHC Repco-Brabham engine used Repco's own block. GM derived, not GM.

    My Rover P6B had a Rover-made 215 GM V8. I think the big difference between Rover's version and the original was carburation, the Rover version used SUs. My example was very problematic.
    Yes, the first year blocks were modified stock GM. And of course they were much modified for F1 racing.
    My dad had a convertible first generation Olds F-85 in the early 70's. That was a quick little car. What everybody said back then was to not let the engine get too hot, as the heads would warp. The impression given was that that was a problem with them. I suspect now that it was a generalized concern, as a lot of regular guys were still skeptical of aluminum.

    Anyway it all goes to the point I was making, that aluminum is every bit as good as "steel", done properly.
    I do use a digital device in my photographic pursuits when necessary.
    When someone rags on me for using film, I use a middle digit, upraised.

  2. #82
    lxdude's Avatar
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    Quote Originally Posted by E. von Hoegh View Post
    Only if they are the very very rare karuta versions, made for the Emperor and his family.
    Aww damn. I guess I'm gonna die!
    I do use a digital device in my photographic pursuits when necessary.
    When someone rags on me for using film, I use a middle digit, upraised.

  3. #83

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    Quote Originally Posted by lxdude View Post
    Yes, the first year blocks were modified stock GM. And of course they were much modified for F1 racing.
    My dad had a convertible first generation Olds F-85 in the early 70's. That was a quick little car. What everybody said back then was to not let the engine get too hot, as the heads would warp. The impression given was that that was a problem with them. I suspect now that it was a generalized concern, as a lot of regular guys were still skeptical of aluminum.

    Anyway it all goes to the point I was making, that aluminum is every bit as good as "steel", done properly.
    As was demonstrated by Marc Birkigt's mostly aluminium V8... in 1914.

    There was no excuse for that abortion of an engine in the Chevy Vega.

  4. #84

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    Funny how this post went from lenses to cars.

    Jeff

  5. #85

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    Quote Originally Posted by Jeff Kubach View Post
    Funny how this post went from lenses to cars.

    Jeff
    Airplanes. Marc Birkigt's V8 - http://en.wikipedia.org/wiki/Hispano-Suiza_8

  6. #86
    Richard Sintchak (rich815)'s Avatar
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    Quote Originally Posted by Jeff Kubach View Post
    Funny how this post went from lenses to cars.

    Jeff
    Heck it was getting hilarious even before that.
    -----------------------

    "Well, my photos are actually much better than they look..."

    Richard S.
    Albany, CA (San Francisco bay area)

    My Flickr River of photographs
    http://flickriver.com/photos/rich815...r-interesting/

    My Photography Website
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  7. #87

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    Quote Originally Posted by lxdude View Post
    What everybody said back then was to not let the engine get too hot, as the heads would warp. The impression given was that that was a problem with them. I suspect now that it was a generalized concern, as a lot of regular guys were still skeptical of aluminum.
    Another false legend, at least with respect to the Rover version. My POS overheated regularly -- thermostat failure every time, and of course they failed closed -- and boiled spectacularly every time. Never lost a head gasket, though, but I did worry. I suppose the block could have warped with the heads, but that's really hard to believe.

    To get back to lenses, back when I was starting out with my humble little Nikkormat my Leica-using friends ragged me unmercifully, boasted about their Leitz lenses' wonderful sharpness, superior to anything Japanese, now and forever. They also gave me a hard time about using an SLR; everyone knew that the deity's own camera was a thread mount Leica with a highly precise rangefinder.

    Funny thing was, they all shot hand-held, so pissed away whatever superlative quality their lenses may have had. Equally funny thing was, I was getting macro shots with my humble 55/3.5 MicroNikkor, on its own mount and on its little M-2 ring, that they couldn't take with their Leicas. Visoflex, schmizoflex. "Horses for courses" had no traction with my Leicanuts.
    Last edited by Dan Fromm; 06-06-2013 at 07:20 PM. Click to view previous post history.

  8. #88
    Rhodes's Avatar
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    Quote Originally Posted by Jeff Kubach View Post
    Funny how this post went from lenses to cars.

    Jeff
    You should see the General Topics section on Subsim forum, every thread there goes from the topic to all other stuff.

  9. #89

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    I wish I had known about this thread long before now, as I'm just tonight reading it for the first time.

    Why don't you show us two real world examples of your lens claims? Two examples shot side by side, all other things being equal, where you can show that one photograph is clearly an improvement because of the lens. Just do ONE simple thing to back up your claim.
    I have lived with Pentax and Leica cameras side by side, and I cannot make better photographs with the Leica. SHOW me what you are talking about. Please. No more words. Just SHOW me with a picture.
    Published in the May 2001 issue of Popular Photography, Herbert Keppler did exactly that. In his "SLR" column, that month entitled, "Can You See the Difference in Pictures Shot with a Super-High-Quality Modern Lens and an Inexpensive Old SLR Lens?" Mr. Keppler compared two identical scenes, one shot with a Leica M6 with the 50/2 Summicron and the other with a Pentax Spotmatic armed with the 50mm f/1.4 Takumar, both at f/8 on Kodak TMax 100. Each were enlarged to 8x12 using glass negative carriers for maximum flatness. He displayed full-sized detailed sample images from each print, center and corner. Both samples were virtually identical. He believed you'd have to go to at least 16x24 to see differences, if any.

    What does it prove? That at that particular aperture and enlargement degree, all other factors being equal, they were one and the same. Change any of the other factors and the results could change. I wish I could provide a link to the article, but I don't believe one exists. I am writing about this with my personal copy of the issue right here in front of me.

    Bottom line though, it's the image that counts. The camera and lens is but a tool to interpret the mind/eye vision, nothing more. I admit to owning an M6, but I also have a Spotmatic and a Yashica TL-Electro, among myriad others in my collection. On any given day, it could be any of those that expresses my vision the way I want. More often than not, it's my Pentax MX or my simple but trusty TL-Electro I've used since 1976 that gives me the image result I was looking for.
    Last edited by cobbu2; 06-11-2013 at 10:14 PM. Click to view previous post history. Reason: Elaboration

  10. #90
    darkosaric's Avatar
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    Quote Originally Posted by cobbu2 View Post
    I am writing about this with my personal copy of the issue right here in front of me.
    I think that you can post here scan (or photo) of the article, value of having this on apug overrides eventually copyright issue .
    Last edited by darkosaric; 06-12-2013 at 02:29 AM. Click to view previous post history.



 

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