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  1. Replies
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    Re: Kodak D23 Question

    D-23 was originally formulated to work very similarly to D-76.

    It can be mixed in whatever quantity, as long as the proportions are kept the same.

    As for dilution, the usual generalities of a...
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    Re: Importance of back movements

    Strictly speaking, this is not technically correct. It is a convention.
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    Re: 2 sheets of film in the same holder?

    If you search around the used market, at one time there were registration film holders. Might be hard to find though. Condit made one. This is sort of a different topic though.

    What I would say...
  4. Re: Tray developing - strange marks/scratches on film base

    I suggest you waste two sheets of film running through your process with the lights on. Inspect the base side of each sheet first. Then go through the full process and inspect again. This might help...
  5. Re: Precision and Accuracy in LF Photography: How much is enough?

    You’re not doing anything wrong, as you know. You’re just ignoring a lot of bad information. :)
  6. Re: Precision and Accuracy in LF Photography: How much is enough?

    Repeatability can be useless without accuracy, depending on which action is being evaluated.
  7. Re: Tice fans: GEORGE TICE AND ANDREW WYETH: PARALLEL VISIONS

    Yes, quite right!!
  8. Re: Tice fans: GEORGE TICE AND ANDREW WYETH: PARALLEL VISIONS

    One of the best.
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    Re: Advice request: cutter

    Why would one use a mat cutter to cut film?
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    Re: Best dual axis bubble spirit?

    So basically what you’re saying is you can’t help me out with my laser depth gauge lens board-ground glass alignment idea?
  11. Re: Precision and Accuracy in LF Photography: How much is enough?

    Most people get irritated when I write that, but you know...
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    Re: Unsharp Masking…Would I/Could I/Should I?

    You need a way to keep the negative and mask film in alignment when making the mask and when printing the negative/mask combination. This can be done without pins but it is often easier with pins. On...
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    Re: Unsharp Masking…Would I/Could I/Should I?

    Even with pin registration, you don’t necessarily need pins in the enlarger negative carrier. Align the negative and masking film on pins to make the mask exposure. Then when the mask is done, align...
  14. Re: Precision and Accuracy in LF Photography: How much is enough?

    Part of what makes LF work more predictably is doing it with regularity. The “well oiled machine” analogy applies. If it is sporadic, particularly if you’re relatively new at it, it is clunky, and...
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    Re: Advice request: cutter

    I only do prints with my Rotatrim. For straight cuts of mat board I would just use a knife and straight edge.

    A mat cutter can be a useful tool if you can justify the expense relative to the...
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    Re: Unsharp Masking…Would I/Could I/Should I?

    The general principles can apply to any format. Whether or not it is worth trying really depends on whether or not you think any of the types of masks would be of use in making your prints.
  17. Re: Stand processing Kodak Technical Pan and FP4+

    In general, stand-types of processing are not good ideas when it comes to development uniformity for a variety of reasons. It looks like there is some of that going on, but it is difficult to say...
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    Re: D-76; Mixing Small Batch?

    Packaged Perceptol also contains sodium tripolyphosphate but that’s just a chelating agent, not photographically active.
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    Re: D-76; Mixing Small Batch?

    Perceptol is roughly:

    5g/l metol
    100g/l sodium sulfite
    25-30g/l sodium chloride

    Microphen is similar to ID-68, which is a published formula - easy to find.
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    Re: Avoiding purple tones with selenium...

    It is possible different developers might influence this to a limited extent. Toning could also take longer if a hardening fixer is used, although that is rare these days.

    Ilford MG Classic tones...
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    Re: Color of Ansco/PF 130

    As long as you know your paper doesn't have any developer incorporated in the emulsion, then you can test to see if a developer is dead.

    Testing for the activity level of specific developer...
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    Re: Paper cutting preferences

    My guess is it wouldn't really matter. Mine is an 18" with the two rails (actually they are cylindrical). I bought it a long time ago so I don't remember if there was a lower priced option for one...
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    Re: D-76; Mixing Small Batch?

    Hi Jim,

    It’s actually the other way around. D-76 was the late 1920s, while D-23 was mid 1940s.
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    Re: D-76; Mixing Small Batch?

    D-23 was formulated to be very similar to D-76, and they are very close.

    Here is another very simple option for you - use Ilford ID-11, which is D-76, and still comes in 1l quantities so you don’t...
  25. Re: Precision and Accuracy in LF Photography: How much is enough?

    Ha! :)
  26. Re: Precision and Accuracy in LF Photography: How much is enough?

    Not in my experience.
  27. Re: Precision and Accuracy in LF Photography: How much is enough?

    The “2/3 stop” is the opposite of what you make it out to be. It could simplify things for people, or at least for aspiring Zone people.
  28. Re: Precision and Accuracy in LF Photography: How much is enough?

    Accuracy can be thought of as "correctness"

    Precision is basically "fineness" of measurement

    Repeatability is consistency
  29. Re: Precision and Accuracy in LF Photography: How much is enough?

    I can't remember the last time I made a LF exposure shorter than a second, and most are much longer so shutter accuracy is basically a non issue for me. I don't buy used equipment so I kind of just...
  30. Re: Precision and Accuracy in LF Photography: How much is enough?

    LF is problematic and frustrating in many ways. Rather than necessarily giving up all of photography my two cents worth of a suggestion would be to shoot medium format or 35mm. In my experience, most...
  31. Re: Precision and Accuracy in LF Photography: How much is enough?

    It depends on whatever aspect/part of the process you’re talking about, along with one’s aesthetic preferences etc. Some parts of the process inherently have, and tolerate a lot of slop. Other parts...
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    Re: Paper cutting preferences

    Most of the pros I know use guillotine cutters. I assume good ones are expensive unless you can find something used in good condition. I have a Rotatrim. They are not the cheapest but I don’t make...
  33. Re: Going home again - my journey back to film!

    Hi from Montreal. I've always wanted to visit Vancouver Island.

    Michael
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    Re: Best dual axis bubble spirit?

    I had a Titan SF and the lens aligner. It’s a clever accessory but I found it somewhat fiddly and not very convenient. Just my opinion though - which should probably be taken with a grain of salt as...
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    Re: Best dual axis bubble spirit?

    A way to quickly square the standards without clunky detents etc. would definitely be useful for me. I don’t want any tilt or swing when I don’t want it. All it would need are four little laser depth...
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    Re: Best dual axis bubble spirit?

    Reminds me of Bob Ross haha. He would always remind the viewer when he was putting in things like water lines to make sure they are basically level and straight or else the water will run off the...
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    Re: Best dual axis bubble spirit?

    You’re fine using your eyes. Even for architecture/urban/interior stuff I usually shoot, I haven found spirit levels very useful.
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    Re: Piezography: Talk me into/out of it

    Thanks for the response, Sandy. I’ll contact Piezography for sure. Luckily (I suppose) I haven’t bought any hybrid/digital equipment or software at all yet, so I can go in any number of directions...
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    Re: Common Large Format Mistakes

    The most common LF mistake is believing the slowing of the process as the camera size increases will make you a better photographer.
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    Re: Piezography: Talk me into/out of it

    Resurrecting this thread with a question, as I'm still intermittently trying to learn about the hybrid world (incl. Piezography but also other things).

    I was recently watching Bill Schwab's series...
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