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    Re: Hole Saw For Commercial Ektar Lens

    Precisely.. Choice of tool used is lesser than being resourceful and applying the tools with proper care and consideration for the consequences of what is possible.


    Bernice
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    Re: Hole Saw For Commercial Ektar Lens

    Don't do flimsy sheet metal lens boards. The cast aluminum Sinar ones with raised Sinar lettering has never been any issue being held in a vise or four jaw chuck if done carefully. Setting up sheet...
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    Re: Hole Saw For Commercial Ektar Lens

    This is the kind of stuff good machinist do all the time. It is why lens board holes in a lathe is the best way to make a lens board hole for any specific lens. It is not difficult to achieve a...
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    Re: Hole Saw For Commercial Ektar Lens

    This bridgeport is a bit odd, the table is 32" x 9" which is the smallest Bridgeport they made. These were made up to the mid-1960's. This specific BP was made in 1959. Previously owned and used by a...
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    Re: Hole Saw For Commercial Ektar Lens

    If you're going to hole saw a lens board, setting it up in a Bridgeport milling machine using a Kurt milling vise and related set up tooling is likely the best-most stable way other than using a four...
  6. Re: How to remove heavy casing from 24" Aero Tessar

    These BIG aero lenses can be used to make telescopes. Number of these have been used as the basis for a refractor telescope by hobby astronomy folks. Have a few of these sitting around, none were...
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    Re: Hole Saw For Commercial Ektar Lens

    If the lens board is not absolutely stable with zero ability to shift or move as the hole saw is cutting, there will be a disaster if what is used to stabilize the lens board lets go.. That lens...
  8. Re: How to remove heavy casing from 24" Aero Tessar

    Does this lens have a Fairchild K38 shutter? Many aero lenses from that era did.
    Regardless, these are enormous lenses that simply do not do well on common sheet film cameras for a long list of...
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    Re: Where to find tiny wood screws?

    Suggest using a type A thread stainless steel sheet metal screw. These work very good in wood.

    https://www.mcmaster.com/sheet-metal-screws/screw-size~no--2/tip-type~pointed/


    Bernice
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    Re: Kodak 12" Ektar f4.5 questions

    If...

    Bernice
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    Re: Kodak 12" Ektar f4.5 questions

    Curious, why is image circle or coverage always a deciding factor for lens choice?

    IMO, that should NOT be the single deciding factor, for more than a few image circle, coverage, "sharp" and tiny...
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    Re: Kodak 12" Ektar f4.5 questions

    As often and widely believed, newer-modern is always better than old..

    IMO, often not true depending on print image needs. That said, and having used-owned a good number of Fujinon lenses in the...
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    Re: Hole Saw For Commercial Ektar Lens

    Best way to make a lens board hole for any lens is on a lathe with four jaw chuck. Once the proper size hole is done, drilling the holes for the flange is not as easy as it appears.


    Bernice
  14. Re: Chamonix and Ebony's are gorgeous & Old Kodak 2D's are UGLY but they have their p

    That came from a Foto friend from decades ago with my first "exposure" to Soft Focus lenses on 8x10. They were quite magical, totally undesirable back then with a market value of nil.

    Countless...
  15. Re: Chamonix and Ebony's are gorgeous & Old Kodak 2D's are UGLY but they have their p

    When it comes to getting the best out of a long focal lens used at full aperture (480mm f4.5) in barrel, this can be a serious challenge for any wood folder camera due to:

    Lack of precise and...
  16. Re: Chamonix and Ebony's are gorgeous & Old Kodak 2D's are UGLY but they have their p

    View camera is essentially a light tight box that is flexi in the middle with a method of holding a image recording device (film, digital imager or _) at one end, lens support holder at the other end...
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    Re: Choice for new 210 lens for 4x5

    What are your print image goals?
    There have been many, many, many 210mm _ 8-1/2" focal length view camera lenses designed-produced for many decades.
    It is the print image goals that should...
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    Re: Quarantine Pictures Any Format

    Yesterdays view from a window.
    202018

    From earlier this year when the light is "just so".
    202019


    Bernice
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    Re: Still life - DOF problem

    Composition not gonna work for trying to hold focus front to back. Stopping down to f45 or using camera movements will not get front & back "in focus". In this case your best option is to move back,...
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    Re: Kenny Rogers RIP

    In Kenny's book, Your Friends and Mine his experience with John Sexton and moving to 8x10 was discussed in detail as part of the book's intro.

    Having used both Super Technika IV and Master...
  21. Re: Another digital versus analog showdown

    Shameless plug here..

    5x7_13x18cm is often the ideal trade-off sheet film format. Too many only consider 4x5 or 8x10 for many Foto-mythical reasons.
    As for why 5x7_13x18cm, it's been...
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    Re: Kenny Rogers RIP

    Kenny Rodgers began doing LF some time in the 1970s' -80's seriously. Initially with a 4x5 camera, published a book titled:
    'Kenny Rodger's America'...
  23. Re: Another digital versus analog showdown

    "Test" proves much of ZERO...

    Another single factor focused "test" that ignores the far greater whole of print making.
    BTW, this has ZERO to do with "Winning"...


    Bernice
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    Re: Better lens for my Crown Graphic?

    Depth of Field_Depth of Focus produces area in the image that appears to be in focus. A lens can focus the image to what is essentially a single point, unless the lens is focused at true infinity.
    ...
  25. Re: 75mm or 90mm based on the following....

    With 4x5, pick a 90mm lens that has enough image circle to meet the image making needs.

    ~Then go burn film.


    Analysis-Paralysis prevents the burning of film, production print images and...
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    Re: A tale of two meters

    Observations:

    *What was the "carefully set up test target"?

    *What was the light source used?


    Spot meters are calibrated and designed to read light reflected from a certified calibrated 18%...
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    Re: Relevance of zone system when scanning

    In both examples, the original information recorded in film_print has been lost. What is visually perceived is interpreted by an individuals mind. If what has been perceived then interpreted by the...
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    Re: Relevance of zone system when scanning

    The image recording media is ..... Film.

    Film has a light response curve that is not escapable regardless if the print is made via wet darkroom or scanned. Image to be recorded is much the same....
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    Re: explain like I'm 5......... 90mm lenses

    From the point of view of one who spent decades burning LOTS of color transparency film between the early 1980's to late 1990's...

    Higher contrast, Sharpest lens is NOT always desirable. It...
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    Re: explain like I'm 5......... 90mm lenses

    What were the "test" methods used to determine the SW Nikkor 90mm f8 was the "sharpest" of the lot?

    *Camera used, film used, how was the film processed, subject & lighting conditions used,...
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    Re: explain like I'm 5......... 90mm lenses

    Modest magnification loupe (4x to 7x) tilted at an angle towards the center of the lens while viewing the edge of the ground glass image. Fresnel lens will not help you here, it can make assessing...
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    Re: explain like I'm 5......... 90mm lenses

    The possible rational for the SW Nikkor 90mm f8 being tops.... small size with a LARGE image circle.. that is about it.

    Tops completely depends on the image making needs. IMO, majority of modern...
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    Re: Mountain Lion near Santa Cruz

    This happens on Coastside trails more often than most realize.. Notice the expression on this Lion. They typically don't want human contact in any way.
    Know when on these trails, YOU'RE in their...
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    Re: To loupe or not to loupe?

    Have the Horseman versus of this 7x loupe, been using this same loupe on the GG for decades. It's quite beat up and well used now, still works fine and remains the preferred GG loupe to this day.

    ...
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    Re: To loupe or not to loupe?

    The optical grooves on any Fresnel lens affect the ability to use any magnifier. This and a long list of reasons is why any Fresnel "brightness" improver can work against the photographer.

    Stopped...
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    Re: To loupe or not to loupe?

    IMO, Not possible to assess critical focus on the GG without a loupe.

    Basic mandatory view camera item.


    Bernice
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    Re: Best enlarger you have used

    And remains in alignment and stable for the entire duration of making a print. It printing a sheet of film placed in an enlarger "pops" moves, shifts, goes out of focus, or .... after being set up.....
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    Re: Best enlarger you have used

    Durst 138 or Durst 184 or Devere 50x floor standing version with an equally matching high quality head, condenser, color or similar. Using and living with a 'GOOD' floor standing enlarger can...
  39. Re: Sinar Macro Sinaron SE 180mm F/5.6 Question

    180mm Macro lens on camera, check focus at infinity by pointing camera & lens out into a far distant object then racking the camera & bellows out-in until the image on the ground glass comes into...
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    Re: Lenses for new 5x7 / 6x17 kit

    Hello David,

    Been at this 5x7_13x18cm film endeavor since the later 1980's.. Curious as to where these Dream Lens choices came from. I've used the 90mm XL,
    APO Sironar series, the modern Macro...
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