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  1. Thread: shall i move ?

    by Leigh
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    523

    Re: shall i move ?

    Hi Saba, and Welcome Aboard.

    I generally do not recommend that anyone start in LF with an 8x10 camera.

    They're large and expensive, with limited options for lenses and film.

    You might try...
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    Re: Impressions on Nikkor M 450mm f9

    Forgive us for trying to further your education.

    I certainly will not make that mistake in the future.

    - Leigh
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    Re: Impressions on Nikkor M 450mm f9

    Interesting that Nikon describes the M with:
    "Chromatic aberration is virtually eliminated over the entire visible portion of the spectrum..."

    But they do not describe it as an apochromat.
    ...
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    Re: Looking for a Sinar F2 repair manual

    The only one I've found is this one:
    http://www.atwaterkent.info/Images/Sinar%20F2%20svc%20manual.pdf

    - Leigh
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    Re: Which LF 180mm lens would you buy?

    Bob,

    i expressly stated the APO-Sironar-S series of lenses.

    The shortest FL shown in my LINOS/Rodenstock catalog is 100mm, and that won't cover 4x5.
    The shortest FL that will cover 4x5 is...
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    Re: Which LF 180mm lens would you buy?

    i certainly agree as regards the selection of the first lens for a system.
    All of the "big four" lens makers make excellent products.

    However, you should consider the manufacturer when...
  7. Re: How hard/easy to mount lens in a 'new' Copal shutter

    That's certainly true.

    And that's also certainly NOT the point of this discussion.

    When these shutters were made, they were done by hand, not on an automated lathe.
    In that environment,...
  8. Re: How hard/easy to mount lens in a 'new' Copal shutter

    That explains much of the misunderstanding.

    These shutters were made by people operating machines, not by computers.

    Parts produced manually have a much wider range of errors.
    Making parts...
  9. Re: How hard/easy to mount lens in a 'new' Copal shutter

    It's not difficult.

    It's expensive.

    That's the point you fail to understand.

    - Leigh
  10. Re: How hard/easy to mount lens in a 'new' Copal shutter

    That's because tolerance errors are individual, to a specific lens or shutter, not general to a group thereof.

    - Leigh
  11. Re: How hard/easy to mount lens in a 'new' Copal shutter

    Pere,

    It's a pity you don't understand the concept of "tolerance" in a manufacturing environment.

    - Leigh
  12. Re: How hard/easy to mount lens in a 'new' Copal shutter

    So you expect shutters to be manufactured with zero tolerance, yes?

    You realize that would increase the price by a factor of 10 to 100.

    Your optician is obviously unfamiliar with...
  13. Re: How hard/easy to mount lens in a 'new' Copal shutter

    One critical point is that shims are NOT all the same thickness.

    Their purpose is to take up the error in the shutter thickness (manufacturing tolerance). One shim or set of shims from one...
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    Replacement opal glass diffusers

    Edmund Optics just announced replacements for opal glass diffusers, in a range of sizes.
    ...
  15. Re: Update to Epson scanning article: how to bypass all tonal adjustments

    Sorry, Ken,

    But that's not possible.

    JPG et al are compression formats.

    Even if you choose "lossless compression", you still get pixel mangling.

    TIFF is a direct element-to-pixel dump...
  16. Re: Update to Epson scanning article: how to bypass all tonal adjustments

    Why not use EpsonScan rather than VueScan.

    EpsonScan came with my V750. I'm sure it also came with your V700.

    For a plain-vanilla scan, you don't need any of the fancy VueScan features, so...
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    Re: tools for openning a copal 3 shutter

    I did the same thing.
    Learned watch repair as a preparatory phase of the camera repair trade. Helped a lot.

    - Leigh
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    Re: Graflarger Repair

    Hi Steve,

    Thanks for the kind words.

    Unfortunately, you cannot predict winding resistance for any transformer. It's a function of the current-carrying capacity of the particular winding and...
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    Re: Graflarger Repair

    If you want to ship it to Maryland, I'll take a look at it.

    No guarantees that it can be repaired.

    I have A LOT of experience working on vintage electronics, many units considerably older...
  20. Re: Confusion over abundance of contradictory information re: process lens optimizati

    Re-mounting a lens is definitely NOT a trivial task.

    One problem that never gets mentioned is cell rotation. It's quite common for the optical axis of a cell to NOT correspond to the physical...
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    Re: Graflarger Repair

    There are proper ways to repair vintage gear.

    Applying power, then sniffing around for smoke and watching sparks do not quality.

    - Leigh
  22. Re: Minimal Agitation Negative versus Tray Processed Negative

    Is your monitor turned upside down?

    The highlight densities of the lower neg are MUCH greater than those of the upper neg on my screen.

    - Leigh
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    Re: Large Format Interiors

    Hi Reinhold,

    I have no idea how you travel as far and wide as you do, but I sure am glad you do.

    Every one of your shots is excellent.

    Happy New Year.

    - Leigh
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    Re: safe haven for tiny formats

    Interesting shot. I would have bumped the exposure maybe 2 stops to bring out detail of the roof and avoid that huge black hole.

    - Leigh
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    Re: New to LF but not photography

    Hi Alec,

    I can highly recommend Dodge Chrome. They've developed sheet film for me for years.
    They do B&W, C-41, and E-6, in all sizes from 35mm to 8x10.

    They're located in Silver Spring,...
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    Re: New to LF but not photography

    Hi Alec,

    and welcome to a great hobby.

    What format (film size)?
    Do you have film holders? (or plate holders if appropriate)?

    A good source for large-format film is B&H Photo at...
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    Re: safe haven for tiny formats

    Neat shot, David.

    I love all the texture in the subject (I'm assuming that's not grain in the film).

    - Leigh
  28. Re: How does one determine how close a given lens can focus given a given bellows dra

    Paul,

    The difference in lensboard position between infinity focus and 1:1 (full-size image) focus equals the lens focal length.

    That's true for all lenses and all formats.

    - Leigh
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    Re: Back In The Game.

    Congrats !

    Hope it proves to be as gratifying as you remember.

    - Leigh
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    Re: Cleaning of slow shutters

    Hasselblad shutters are ALWAYS stored cocked.
    In fact, it's impossible to remove the lens from the camera if the shutter is not cocked.

    I'm sure you can find plenty of low-quality/cheap springs...
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    Re: Cleaning of slow shutters

    Irrelevant.

    Your earlier comment, to which I replied, stated that springs degrade with time/use.

    That is not true.

    - Leigh
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    Re: Cleaning of slow shutters

    It does not need to be done very often, perhaps every 10-20 years.

    But it DOES need to be done.

    - Leigh
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    Re: Cleaning of slow shutters

    Sorry to disagree, Mark, but that's simply not true.

    As I mentioned earlier, I have a 130-year-old pocket watch that still keeps perfect time.
    It gets wound every day, and never sits unwound. ...
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    Re: Shortening Sinar Standard Bellows?

    Hi Jac,

    The problem with your proposed solution is movements.
    You can't move the lensboard significantly up/down or left/right because the pleats restrict movement.

    That's what a bag...
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    Re: Cleaning of slow shutters

    Only on the axles, and in minute quantities.

    These devices are amazing considering they were made entirely by hand, i.e. not computerized machines.

    I have a pocket watch (in my watch pocket...
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    Re: Cleaning of slow shutters

    Well, I are a camera repair tech, so...

    NEVER put ANYTHING against the bottom of an ultrasonic cleaner. Doing so will destroy the cleaner.

    Put whatever you want to clean in a hanging basket....
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    Re: Is there any way to guess a lens' coverage?

    Not reliably.
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    Re: OC filters in our future?

    You obviously do NOT understand the concept of a "black body radiator".

    Look it up.

    - Leigh
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    Re: OC filters in our future?

    A tungsten lamp is a black body radiator, as opposed to an LED, which is not.

    He's talking about filtering light from a tungsten bulb, using an OC filter.

    - Leigh
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    Re: OC filters in our future?

    There's an old saying: "Ye shall find what ye seek."
    That applies to almost any quest.

    What your friends obviously missed is that the Thomas Duplex safelight is equipped with filters to...
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