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  1. Re: Tech Pan 8x10 in a Jobo - Looking for Info

    nolindan - thanks for posting those; but that sure doesn't look like a high contrast setting to me, so those don't disprove anything I stated. Now get out in high altitude where shimmering ice and...
  2. Re: Tech Pan 8x10 in a Jobo - Looking for Info

    Its variable hig gamma potential is nice for boosting the contrast of color neg film when making interpositives, prior to making internegatives on ordinary pan film like TMX or FP4 in turn form...
  3. Re: Tech Pan 8x10 in a Jobo - Looking for Info

    No, don't think in terms of the high-contrast potential of Tech Pan. It was designed to behave just like an all-or-nothing ortho litho graphics film, except with extended red pan sensitivity. It was...
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    Re: Foot candle to aperture and ISO.

    All this new E-lighting is ruinous for my eyes. Most of these are sheer junk bulbs anyway, very deceptively rated for both color characteristics and bulb longevity. To hell with it. So I just dropped...
  5. Re: Tech Pan 8x10 in a Jobo - Looking for Info

    It's sorta con-tone. Don't expect deep shadows or specular highlights to reproduce well. They won't. It was designed for high contrast development, though it can be reasonably tamed if needed....
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    Re: Aspect ratio of 10x8 and 5x4?

    Do we want to get into the aspect ratio of the Greek golden mean? They certainly understood esthetic decisions. A long knotted string might have been all they needed to determine it. But the...
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    Re: canyon de chelly

    My stomach is too sensitive to hot spices now, but the best Mex Tex food I ever ate was in a mobile home on the Navajo reservation converted into a tiny little breakfast diner. I was the only...
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    Re: Pentax digital spotmeter battery drain?

    I already noted how I keep on hand several Pentax spotmeters, and drift at all was uncommon. 1/3 EV every ten years maybe, and the only current one with even that tiny amount of error is because it...
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    Re: Pentax digital spotmeter battery drain?

    I've had a habit over the decades of keeping a brand new almost unused Pentax digital spotmeter in reserve, not only if my others eventually wear out, but as a master reference to compare the others...
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    Re: Darkroom from zero: Chems disposal

    Yep, ones containing hydroscopic clay (bentonite) swell. But they're also heavy to ship, and we shipped mountains of the correct stuff to military bases all over the Pacific. But with the military,...
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    Re: New darkroom sink options

    PVC has good acid resistance, at least in dilute form like stop bath, but, being glueable, is susceptible to acetone, high heat, etc. Sintra is similar, but generally stiffer, so better in that...
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    Re: Darkroom from zero: Chems disposal

    Fed EPA and State EPA's are only one aspect of regulation, mainly related to toxicity, carcinogens, etc. Air quality districts and the special requirements of municipalities or counties can add...
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    Re: Darkroom from zero: Chems disposal

    Small scale disposal can be a real headache, even in a city like mine which has major chemical industries on the opposite town of town. They're all set up with respect to hazmat, right down to...
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    Re: Cameras with geared swing movement

    I just pack the Sinar F's or Norma ready to go - no need to fold anything, just extend the bellows and go from there. It forms a T, with the camera per se downward in the cushioned top part of the...
  15. Re: The Problem with Modern Lenses.. transfered to those new to view camera image mak

    The capture information is the real information. One cannot better that, but merely disguise it, like with digital sharpening, for example - you aren't adding information or resolution that isn't...
  16. Re: The Problem with Modern Lenses.. transfered to those new to view camera image mak

    Well, let's see.... digital photography has been around two or three decades. The dinosaurs lasted many millions of years, and turtles and crocodiles were in existence even before them, and are still...
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    Re: New darkroom sink options

    Anyone checked the price of marine ply at the present? Bring your defibrillator. It's always been expensive, but due to covid-related distribution blockages, might currently be three times the price...
  18. Re: The Problem with Modern Lenses.. transfered to those new to view camera image mak

    What is "digital" color photography? I've never heard of it. My color darkroom doesn't have a radio in it, so I never listen to such teenage jargon, whatever it means. Is 'analog" the same thing as...
  19. Re: SFMOMA exhibit documents 85 years of innovative photographic Art in San Francisco

    Sounds fun, but doubtful I'd want to battle the traffic and current downtown anarchy to see it. But it will apparently be on display quite awhile, so maybe there will be a chance after the dust...
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    Re: Cameras with geared swing movement

    Hard detents have their pros and cons. If precisely tuned, these give you instant zeroing; but if you actually need just a small degree of variance from that, the detent might make it difficult to...
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    Re: Ansel Adams Examples - new edition

    Gave my copies away long ago. A helpful rite of passage for me at one time, with a fair amount of interesting background history, but just one step among many more along the road.
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    Re: Schneider APO-Tele Xenar HM 800 f/12?

    It's a myth that all processes lenses have to be stopped down to f/22 for optimal performance. F/22 was just the common denominator graphics industry standard that specifications were given for. But...
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    Re: Foot candle to aperture and ISO.

    Meters that read in footcandles are typically called Lux meters, and are mainly used for things like architectural lighting, not photographic applications, although some incident film meters do both....
  24. Re: 8x10" at which length, is an auxiliary bellows support necessary?

    The other simple trick is to attach a velcro tab outside the bellows, topside and midpoint. Then use a long strip of the opposite Velcro attached to the rear standard to tension it. But I've never...
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    Re: Intellifaucet models and questions

    You need separate kinds of filters for the hot and cold lines, and need to periodically replace the filter elements inside, depending on water quality variables in house and region in general. I...
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    Re: Intellifaucet models and questions

    You have to factor in line filters too, both hot and cold, if you expect long-term reliability, unless you already have those in place. That it true of ALL tempering systems. They can supply those...
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    Re: Newton's Rings

    My biggest disappointment in that respect was when second-generation FP4 (the plus version) came out slicker than the original flavor. Neither are as bad as TMax. Delta is somewhere in between, but I...
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    Re: Newton's Rings

    Rings are the rule rather than the exception around here due to the nearly year-round coastal fog, unless one of the very few old school emulsions are involved which still has a viable retouching...
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    Re: Using filters on LF lenses

    Tiffen has a special thermal film sandwich process involving their own materials, not Wratten gels. I'm glad they've been around for a long time because in terms of glass filters per se, they have...
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    Re: Hang it Dang it

    Hangings in the darkroom, using a guillotine cutter in the dark ... are we talking about photography or medieval modes of capital punishment?
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    Re: Using filters on LF lenses

    Gels also widely differ in how the fade and age. The official Wratten handbook gives the relevant specifications for every one of them. And there is always a risk when buying old bargain ones, even...
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    Re: Using filters on LF lenses

    Gel filters are just so damn susceptible to hazing, embedded grit, and fingerprints, that I only use them in the lab (never in the field), and only when I need a particular flavor which simply isn't...
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    Re: Newton's Rings

    "Durst Pro" was trying MC Schott glass thick enough and of the right kind suitable for diamond drilling to accept registration micro-pins. Not all kinds of glass can be successfully drilled, and the...
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    Re: Using filters on LF lenses

    Most lenses are not designed for rear filter use. A few are. There can indeed be an image quality penalty. I've tested for that with high quality MC glass filters. Guess it depends on how much you...
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    Re: Newton's Rings

    Depends what you mean by "normally", Michael. Perhaps you use dry gas heat during winter? I duuno. I use only passive electric in the darkroom, and other than Fall, and not even this Fall, this year,...
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    Re: arca swiss F metric 5x7?

    Making dies themselves for sake of serious metal components is extremely expensive. CNC aluminum fabricating is far cheaper, but doesn't produce the same durability or precision. Wood fabrication can...
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    Re: Newton's Rings

    Ideally, you need real anti-Newton glass. I use it on BOTH sides of the negative. True constant flatness is absolutely necessary for my own applications. Original Durst AN glass in particular sizes...
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    Re: Field Tripod for Horseman 8x10

    The Zone VI was just a half-baked converted so-so survey tripod. I gave mine away and replaced it with the real deal, a Ries. The legs on that ZVI literally froze up in cold wet weather, the top...
  39. Re: Modified Surveying Tripod, Dutch Hill_Bolex.

    Bingo. Those yellow/orange clad ones on Bernice's link are simply private label CST Bergger tripods. I had them private label in quantity for our company too. And I forecast the current price pretty...
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    Re: Murals and Frescoes - Any Format

    Post 20 : Newspaper coin slots or a pair of shrunken heads? I didn't know that headhunters lived in snowy climes.
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