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    Re: portra 400 for autumn

    Portra may be fine for landscapes depending on what you want, if you want stronger colors then you may use a Polarizer to increase saturation and/or an (Hoya) intensifier filter.
    ...
  2. Re: Epson V850 work-around for scanning 5x7 negatives.

    By simply Selecting “Film (w/ Film Holder)” in the software it activates the higher resolution (SHR) lens.
    ...
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    Re: 100mm filters

    There are many urban legends about filters, and YMMV.

    Regarding flare, a problem comes when you stack several filters that are not multicoated.

    Cokins are pretty good... but best is that you...
  4. Re: Epson V850 work-around for scanning 5x7 negatives.

    I guess that the scans (and prints) have to be impressive... the V850 shines is 5x7" format if a holder can be provided !!!

    That solution (hacking 4x5 holders for 5x7) is not new, but it's really...
  5. Re: Epson V850 work-around for scanning 5x7 negatives.

    Perhaps this would be suitable for the 4990 scanner but not for the V700 - V850 series.

    The V850 has two lenses, when you use the area guide you may scan two sheets on glass (with emusion down, as...
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    Re: LED Light Table?

    Well... for low rating there is a difference, for high ratings usually TLCI and CRI give similar ratings:

    197455

    This is for the Aputure Amaran AL-M9 DSLR illuminator




    Yes... nothing...
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    Re: LED Light Table?

    Drew, today EPSON V850 uses a LED illuminator, with no problem. As I mentioned an additional diffuser may be required on the panel...

    Spectrum will be continuous enough to make an IT8...
  8. Re: Natural North Light Traditional Lighting Wet Plate

    We know what is northern light: "Diffuse sky radiation": https://en.wikipedia.org/wiki/Diffuse_sky_radiation

    It is shooting in the shadow without skylight filter.

    ______

    For wet plate, only...
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    Re: What is anti-Newton ring glass exactly

    The G componon is nearly impossible to find, and Rodagon G is quite expensive and found in very long focals...

    A friend has a G and he found it only makes sense for large apertures, you may...
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    Re: DOF on 8x10 vs. 4x5?

    http://www.dl-c.com/DoF/

    By Jonathan Sachs, for android (google play) and for windows
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    Re: LED Light Table?

    This may be perfect: https://www.amazon.com/Neewer-Camcorder-3200K-5600K-Ultra-Thin-Portraits/dp/B07WD6QXMJ/ref=sr_1_3?keywords=panel%2Bled%2Bcri&qid=1573814432&sr=8-3&th=1

    197435

    At +95 CRI...
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    Re: DOF on 8x10 vs. 4x5?

    No...

    Hyperfocal is for distant subjets in the scene, example, you want the mountains in the background in focus... then hyperfocal tells at what close distance other objects will be in also...
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    Re: What is anti-Newton ring glass exactly

    Yes... I propose testing on real RA-4 paper, printing on it an IT8 target
  14. Re: Head and Shoulder Portrait Lens for 11x14 Camera

    Yousuf Karsh made most of his 8x10 portraiture with a 360mm, the Commercial Ektar 14".

    ___

    A cheap and nice ULF choice found in shutter is a Symmar 360mm convertible to 620mm f/12, you would...
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    Re: What is anti-Newton ring glass exactly

    I've calculated, with the lux meter, that with the 138 with condensers a 150W LED a 2m print can be exposed in under 40S at f/11, avoiding paper LIRF and needing less a G type lens that's required if...
  16. Re: Head and Shoulder Portrait Lens for 11x14 Camera

    I like the portrait's depth, impressive... big format is big format...
  17. Re: Head and Shoulder Portrait Lens for 11x14 Camera

    1890, not 1980 :)
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    Re: Drum Scanning recommendation

    First, take a x40 magnifier and inspect the finest detail in the negative, then equally enlarge the V800 scan (4000dpi) in the monitor and see if something is lost.

    Second, many 8x10" drum...
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    Re: What is anti-Newton ring glass exactly

    the 138... it is condenser, it is diffuser and it is everything in between. You may use this: a "LAPAL ground-glass diffusing screen can be inserted into the filter-holder", or other frosting...
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    Re: Keeping Time tray developing film

    Also youtube has many videos with countdowns https://www.youtube.com/watch?v=HhmnroMjjHs

    Audio can be downloaded and played in the smartphone.
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    Re: Keeping Time tray developing film

    Open lights...


    Use a paper safe as your tray, or place your tray inside a paper safe or another light tight box, in that way your tray is a "daylight tank". When development done... close...
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    Re: First year Heliar's

    Heliar was patented in 1900, I guess the lens would not be sold before 1900. In 1902 another patent was filed with improvements:

    "According to Rudolph Kingslake's "History of the Photographic...
  23. Re: First Forey Into 8x10 Format/ Intrepid 8x10 Camera

    Yousuf Karsh used one, he made the US presidential photographs from Eisenhower to Bush father, so it was the "Camera ONE" in fact :)


    Today C. Burkett uses one: Min 4:12 >> ...
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    Re: What is anti-Newton ring glass exactly

    Also condenser type enlargers are much more efficient and they use only a fraction of the power than a diffusion head. The 138 with a LED lamp has a low reheating in the film. With the tungsten lamp...
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    Re: What is anti-Newton ring glass exactly

    No taping, the mask had the same size than the glass and it was retained with the same clips than the glass
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    Re: What is anti-Newton ring glass exactly

    Drew, the format reducing mask can be placed over the top glass, with no harmful effect.

    The 138 I use came with a 24x36mm cartoon black mask placed over the top glass...
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    Re: What is anti-Newton ring glass exactly

    You are right, just I checked it and with the 1951 slide with the engravings up, and on it: the durst AN glass with the frosted side down. Inspected with a 200x hand microscope it resolves well group...
  28. Re: Should I Drum Scan, X1 Flextight Scan, or use the Epson V850 w/Aztek Wet Mount Ki

    An advantage of the V850 is that it makes a very good dusting automaticly, taking advantage of the infrared channel (with color film) (ICE , iSRD) making a perfect job, and saving a costly...
  29. Re: Linhof Technika 4x5 parts... Need 2 screws... Hard to get!

    Until you don't find a suitable/original replacement you may use a fully threaded bolt with a metal/plastic tube/sleeve to simulate the "shoulder" of the bolt.

    Or search "Shoulder Bolts" in...
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    Re: What is anti-Newton ring glass exactly

    I would not use the ANR glass in the NEGA 138 for the bottom glass, it would be interesting to check what happens, I'll do it... I'll place an USAF 1951 grass slide on in and I'll project on the...
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    Re: What is anti-Newton ring glass exactly

    AN glass can be used in glass carriers for the top glass, the negative is sandwiched between two glasses... the bottom glass it has to be clear glass because if not the image would be blurred, but...
  32. Re: Should I Drum Scan, X1 Flextight Scan, or use the Epson V850 w/Aztek Wet Mount Ki

    Mark, sorry, until now I could not download and see the shot of the usaf 1951 chart.

    With a printed chart you have to place it at some 3m, for a test in macro conditions you should use a high...
  33. Re: Should I Drum Scan, X1 Flextight Scan, or use the Epson V850 w/Aztek Wet Mount Ki

    Law of diminishing returns.

    As you only take 30Mpix effective from the medium it has little importance if you shot 8x10" or MF, regarding on print IQ.

    Try it...
  34. Re: Should I Drum Scan, X1 Flextight Scan, or use the Epson V850 w/Aztek Wet Mount Ki

    OK, no objection, but as you only require that IQ level then you may save film by using a MF film back in your view camera, cost will be 1/8 and you will have the same print.

    When I spend a velvia...
  35. Re: Should I Drum Scan, X1 Flextight Scan, or use the Epson V850 w/Aztek Wet Mount Ki

    +1
  36. Re: Should I Drum Scan, X1 Flextight Scan, or use the Epson V850 w/Aztek Wet Mount Ki

    Regarding drums, here there is an accurate evaluation, see table
    https://www.onlandscape.co.uk/2011/12/big-camera-comparison/

    197304

    That test was performed by Tim Parkin, Joe Cornish, Dav...
  37. Re: Should I Drum Scan, X1 Flextight Scan, or use the Epson V850 w/Aztek Wet Mount Ki

    Your DSLR, single shot with p shift, will take some 30MPix effective from a 4x5, a V850 will take some 140, a 4000dpi drum scan will take some 200MPix effective and a 8000dpi one will take some real...
  38. Re: Should I Drum Scan, X1 Flextight Scan, or use the Epson V850 w/Aztek Wet Mount Ki

    Scan, single shot, with the DSLR, and you learn what pixel shift does or not does. You won't find more than effective 30MPix effective.
  39. Re: Should I Drum Scan, X1 Flextight Scan, or use the Epson V850 w/Aztek Wet Mount Ki

    Speardynamite scans a 8x10" with a single DSLR shot, so a medium able to record (say) 700 effective MPix is scanned into a file that has many repeated pixels but only around 25 to 30 effective MPix....
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    Re: Best enlarging lenses

    IMHO it is pretty standard for amateur usage to overcome enlarger's limitations, and it's also suitable for small prints, and for crops. It's fall-off may also compensate the taking lens fall-off. ...
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