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  1. Replies
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    Re: Large scans on a student budget?

    Lowest cost option I can think of with your current assets would be to purchase frosted or opal glass to diffuse daylight behind the negative and scan with the the H25. Build a jig to move the neg...
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    Re: HELP - Crop Printing..

    Open a new document, with select tool copy and paste slices of the image into the new doc and print it.
  3. Thread: DIY easel

    by Jim Michael
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    Re: DIY easel

    Is laser better than waterjet for cutting openings like this? Taking 1 or 1.5 inch from both dimensions results in a small change in the aspect ratio. Might asymmetric borders make more sense?
  4. Thread: Spotting

    by Jim Michael
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    Re: Spotting

    I did a lot of retouching b&w and color. For me the most important thing is a good brush. Winsor & Newton Series 7 in a size 0 or 00.
  5. Re: Source needed for KCN, potassium chloride

    Try reagent chemical suppliers like Sigma Aldrich https://www.sigmaaldrich.com/catalog/search?interface=All&N=0+114538164&mode=partialmax&focus=product&lang=en&region=US
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    Re: Horseman 10x8 Help

    What happens when you move that front standard to the rear and rear standard to front? Also put both standards on the same side as Jimi said.
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    Re: Taking a class and now totally baffled

    If you are paying for instruction your instructor owes you clear explanations of concepts. The “white on white” reference sounds like the white tones being so far up on the log curve there is little...
  8. Re: Solar UV exposure meter - for printing processes

    Sounds similar to the integration unit on a UV plate burner, shoul be very useful.
  9. Re: Scratch on negative, how to remove defect from print?

    Edwal No Scratch is great stuff. A diffusion enlarger also helps.
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    Re: studio space problems with soft boxes

    Since a panel LED can be gridded that would appear to be a nice alternative, less need for flags etc. getting in the way.
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    Re: Lee Neutral Density Filter color cast

    If you can quantify the amount of bleu then add the same yellow and appropriate exposure factor. Possibly resolvable in printing but I would rather start as close as I can.
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    Re: Contact Dermatitis

    Can you place a sheet of plastic over the tank to control the splatters? Fortunately I've never had much in the way of reactions to darkroom chemicals, although I did once experience a bout of my...
  13. Re: Is Chrome Alum and Potassium Alum The Same?

    Sigma Aldrich carries it. This is th 98% grade https://www.sigmaaldrich.com/catalog/product/sigald/243361?lang=en&region=US
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    Re: Tape like a post it note

    Frisket paper or frisket film should work.
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    Re: Experience with Colenta Processors

    The downfall of many running a film line is failure to maintain control and cleanliness. In a test a few years ago we sent 4x5 film to a number of labs and all but one had embedded dirt from failure...
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    Re: DSLR Scanning - Signal / Noise

    I think you are referring to the number of exposures in the mosaic for which the limit would be resolution of the grains or dye clouds. Those are the details. However there can be actual noise in the...
  17. Re: Developing Time the cause or somethings else....

    Exposure controls density and development controls contrast, so it sounds like your 4x5 needs the dev time increase and perhaps the shutter on the Nikon is a bit slow. Try backing off the exposure on...
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    Re: Paths to Super Clean Sheet Film?

    Make sure ypou clean or replace the filters in your drying cabinet.
  19. Re: New Websitte: comments or Suggestions welcome

    See Photos button does not render the gallery, stays on home page. Good start.
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    Re: Tiny Format Portraits

    200833
    Trayvon Memorial
  21. Re: Comparison of Howtek 8000 Resolve to Epson V850

    Would it be possible to see a best rendition comparison of shadow and highlight areas?
  22. Re: Comparison of Howtek 8000 Resolve to Epson V850

    Nice. I can see the better separation in the shadows in the one with the higher contrast.
  23. Re: Questions about 4x5 film developed by local lab

    White dust (negatives) can also be due to embedded dirt during development, in particular the drying stage. In a test of several labs a couple of years ago we had difficulty finding one that kept a...
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    Re: New Mexico during Christmas

    The middle crane pond near the entrance to Bosque del Apache south of Socorro, around sunrise. Ideally with a bit of fog. There should be cranes and snow geese and several flights.

    The VLA can be...
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    Re: Trip to Huntsville AL

    If you go to Wheeler for the cranes the best times would be either sunrise before the flights to find food and evening when they return to roost in the water. They can't swim, so they'll be in the...
  26. Re: transporting a Sinar Standard/Norma 4x5 in the field

    When I transported my Horseman monorail I disassembled it and wrapped each component in a lens wrap, then everything went in a Kelty backpack. That was pretty compact and everything was well...
  27. Re: Travelers: New X-ray machines WILL ruin your film

    I agree. A sheet oriented orthogonal to the source and in the center of your baggage.

    Re sending film through the mail, why should that be assumed to be a safe mode?
  28. Re: Travelers: New X-ray machines WILL ruin your film

    Here is some reading material that might help. One article references possible use of periodic exposures in the CT slice method, which has some implications for film (stripes?). Looks like you can...
  29. Re: Clarence John Laughlin - Father of American Surrealism

    A few More books https://www.alibris.com/booksearch?title=clarence+john+laughlin&mtype=B
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    Re: What is anti-Newton ring glass exactly

    Long ago in an inherited darkroom I found a bottle labeled Newt Dust. It was cornstrarch in a squeeze mustard container. The theory was that you would blow a puff of this magic dust in the air and...
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    Re: gas bubbles on negative mystery

    It does look like a scratch. There used to be a product called Edwal No Scratch that was handy for printing negs with scratches. I suppose mineral oil might be worth a try. *Looks like Freestyle...
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    Re: Photography log/database setup

    I wrote an app that was used for geotracking and this was a common challenge. We cached data for upload when connectivity was available. It was a very data intensive app and we queued many MB of data.
  33. Thread: Scarecrows

    by Jim Michael
    Replies
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    679

    Re: Scarecrows

    There is a building in downtown Decatur GA that has highly reflective windows. They had problems with birds crashing into the windows so they have loudspeakers playing bird distress noises to keep...
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    Re: Photography log/database setup

    You could export your FM Pro data to a NoSQL database like MongoDB hosted on a cloud platform (AWS etc.) and use a web interface to access the information from any connected device.
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    Re: Professional Home film processing 4x5 neg

    When I ran film there was a little more to it than a processor and some chemicals. There was also process control. We would run a control strip daily and read it with a densitometer and plot the...
  36. Re: Recommendations for shipping flash equipment

    I once had an Omega D2 shipped Greyhound. It was the cheapest option at the time. Worth checking out.
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    Re: bellows factor app

    Just use f-stop inches. For an 8 inch lens (“f8”) open 1 stop at 11” (“f11”) and 2 stops at 16” (“f16”). Substitute f-stop cm as needed.
  38. Re: newb question - residue on hands after loading film

    I would think any moisture would be contained in the gloves. Do the gloves acquire a residue from handling the film holders?
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    Re: Developing Issue

    Rewash it, rinse in distilled water and see if the effect remains. If you use photoflo it doesn’t take much.
  40. Re: How Large Can I Print a 4x5 Drum-Scanned Negative Before The Resolution Degrades?

    My wife Marcia did the image wrangling on this project: https://acpinfo.org/blog/2019/02/06/sheila-pree-bright-richard-avedon-mural/ so I would say "pretty large".
    One of the images is from a scan...
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