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  1. Replies
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    Re: Hello from Scotland.

    I was - we moved to Ballachulish this year
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    Re: Hello from Scotland.

    Ballachulish calling - 5x4 Ebony and Chamonix and a 10x8 Toyo here...
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    Re: USAF-1951 drum scanned?

    I tested with a whole range of apertures and resolutions and I reckon the best resolution of my system is just under 5500dpi. I compared it with my Screen Cezanne which resolved about the same but...
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    Re: Eversmart vs drum scanners & Aztek plateau

    This threads was dead a long while ago but it's worth linking to some other sources.

    1) 1500/f is rayleigh's value - some consider that it's pessimistic (see Dawes limit)
    2) Chris Perez's lens...
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    Re: Toyo 810M Resource/Fan Page

    Thought you all might like a photo I took with the 810MII and a 800mm lens (Nikkor T)

    https://www.flickr.com/photos/timparkin/5640827032/in/dateposted-public/

    One of the first comments shows...
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    Re: Screen Cezanne Users Unite

    That's a tough question - If you're well exposed it's great, stunning. If you've got solid blacks then you can have problems with transitions - I'd be torn between an Epson and the Cezanne for trying...
  7. Re: LED UV Light Box: Build Your Own for Under $150

    My UV system gives me Van Dyke at 6 minutes - see alternativeprinting.co.uk

    Tim
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    Calibrating Calcu-Light XP

    My Calcu-Light XP was reading one and two thirds stops under so I thought I have nothing to lose by opening it up. I tested each of the pots and found the one that set up the calibration. It's a...
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    Re: Wtd advice on LED UV Lightbox

    I made my own UV unit..

    see posts later in this thread - http://www.apug.org/forum/index.php?threads/best-uv-light-source-led-vs-fluro-vs-hid-etc.115208/

    and also
    ...
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    Re: Screen Cezanne Users Unite

    The Screen Cezanne has a couple of problems in the deep shadows

    1) It's got a low dmax - yes it's not that great at all. However we could probably live with that if it wasn't for

    2) The scans...
  11. Re: Drum Scanners: Upgrade from Howtek 4500 to Heidelberg Tango?

    I've just had an email from Derin today saying that using LAB mode is key to avoiding the posterisation issues I was getting. I'll experiment... many thanks!!!

    Tim
  12. Re: Drum Scanners: Upgrade from Howtek 4500 to Heidelberg Tango?

    Hi Georgl,

    I spent a whole week trying different settings to get the scans in Newcolor (in negative mode) to be as good as Silverfast and I'm sad to say I failed. Whatever I did I ended up with...
  13. Re: Anyone seen the Digital Transitions film scanning setup?

    Hi,

    I'd be very interested in the comparisons of flare on very dense film like velvia 50. I've noticed that all flatbed scanners have problems with this. I have a particularly problematic 5x4 if...
  14. Re: Pretty good article on the seemingly old film vs digital discussion

    Because -

    1) Film has qualities that you don't get with digital (obviously)
    2) Post processing with digital has many advantages
    3) printing very big with an enlarger is very difficult - a job...
  15. Re: Pretty good article on the seemingly old film vs digital discussion

    The actual quote was "very few have approached the subject in a scientific fashion" and I stand by that. I have a PhD in experimental engineering and so I know what good methodology looks like.
    ...
  16. Re: Pretty good article on the seemingly old film vs digital discussion

    'I didn't test drum scans' - which sounds like you may have severely limited the potential results from 35mm. I used a 5600dpi scanner which outresolves many drum scanners. I also used an ICG which...
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    Re: Sharing drum scan quality

    I own a few drum scanners and flat bed scanners and have heard great things about the IQ Smart 3.

    The IQ Smart should have a maximum optical resolution of at least 5000dpi and I was wondering if...
  18. Re: Drum Scanners: Upgrade from Howtek 4500 to Heidelberg Tango?

    Both machines were serviced about 3 months before the test



    I have seen that various scanners need good servicing to get the most of out them. For instance, one of the best scanners I've seen...
  19. Re: Drum Scanners: Upgrade from Howtek 4500 to Heidelberg Tango?

    I've owned an operated well mainted Howtek and Heidelberg scanners.. In fact I still have a Tango and a Howtek and I choose to use the Tango for all of my scanning. Why? First the shadows are cleaner...
  20. Re: Interesting article: "36 Megapixels vs 6×7 Velvia"

    We did a test with the Hasselblad and 40mm CFE too and it was pretty close to the Mamiya. I thought the rendering of the lens was nicer personally (too rich for me though)
  21. Re: Interesting article: "36 Megapixels vs 6×7 Velvia"

    Well I might decide to use some noise reduction on that if I were to print but that is always a balance against print size ... as mentioned in my other comment the whole shot was exposed for the...
  22. Re: Interesting article: "36 Megapixels vs 6×7 Velvia"

    Well he shoots the IQ280 now so that's a no..

    The Velvia was chosen because it holds more detail than Portra. The new Portra's have actually lost sharpness whilst being optimised for scanning.
    ...
  23. Re: Interesting article: "36 Megapixels vs 6×7 Velvia"

    No it's exposed for the highlights which were very bright on the lightbox and very little light in the foreground. Check the scene out and check the exposure on the lightbox.. I've tested the dynamic...
  24. Re: Interesting article: "36 Megapixels vs 6×7 Velvia"

    Thought you might be interested in the full size 'definitive' D800E vs Mamiya 7 scanned on the Heidelberg.. I kept the D800 as raw pixels so you can see the proper data..
    ...
  25. Re: Interesting article: "36 Megapixels vs 6×7 Velvia"

    Well oversampling is definitely the key to good results. That's why I think 50mp is actually really useful in a DSLR. Not to get 50Mp worth of huge images but to create a smooth transition from broad...
  26. Re: Interesting article: "36 Megapixels vs 6×7 Velvia"

    Heh you beat me to the mark there... I am deeply interested in the technical side of photography to the point where I understand my medium as much as possible. Then I ignore the hell out of it...
  27. Re: Interesting article: "36 Megapixels vs 6×7 Velvia"

    Definitely not chromatic abberation from the taking lens - The drum scan from my Heidelberg (not available at the minute) doesn't show it.

    It doesn't have to be grainy - I didn't noise reduce it...
  28. Re: Interesting article: "36 Megapixels vs 6×7 Velvia"

    https://www.flickr.com/photos/timparkin
  29. Re: Interesting article: "36 Megapixels vs 6×7 Velvia"

    Agreed but barring gross stupidity if you take a photographer who uses both film and digital seriously and specialises in scanning film then I would hope that you can get the best out of each medium....
  30. Re: Interesting article: "36 Megapixels vs 6×7 Velvia"

    Not going to argue I'm just going to say $23 for a drum scan and my 4x5s blow away my A7R files even with an Epson flatbed..

    http://static.timparkin.co.uk/static/tmp/epson5x4-vs-d800e.jpg

    In...
  31. Re: Interesting article: "36 Megapixels vs 6×7 Velvia"

    With so many factors it would be tough to do.. I could do a 'cheapest film camera that still trumps digital' which could possibly be the Bronica? but then it loses by weight? So how do you score...
  32. Re: Interesting article: "36 Megapixels vs 6×7 Velvia"

    Yes that should be interesting. We're going to do a single shot test (otherwise I'd just bracket 8x10 images!). He's more interested in signal to noise ratio in the shadows..
  33. Re: Interesting article: "36 Megapixels vs 6×7 Velvia"

    We bracketed the Mamiya 7 images but we were confident we would be OK as the depth of field covered most of the table at f/8 (about 20cm if I remember correctly). We put a video camera to the Mamiya...
  34. Re: Interesting article: "36 Megapixels vs 6×7 Velvia"

    The film and digital images were fairly extensively post processed. Deconvolution sharpening etc.. Only fair to both platforms to get them optimally sharpened etc..
  35. Re: Interesting article: "36 Megapixels vs 6×7 Velvia"

    Not sure what you mean - there is definitely moire in the test images, exacerbated because it was a D800E.

    Tim
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    Re: DIY DSLR Scanner vs Drum Scanner

    Sounds good - I can send you a couple to scan as well (from the Big Camera Comparison test we did)

    It seems flare is inevitable - clear parts of the film itself diffuse light slightly and hence...
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    Re: Diffraction and using a small aperture

    One of my old jobs was taking photographs of Army and Air Force Battalions which they would get enlarged to 3 meters wide sometimes and stick at the end of the barracks. I did a bunch of tests on my...
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    Re: DIY DSLR Scanner vs Drum Scanner

    Happy to scan a test on my Howtek 4500, Screen Cezanne Elite Pro and Heidelberg Primscan.

    It's interesting that I always thought Portra 400 had more grain than Portra 160 until I scanned them...
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    Re: DIY DSLR Scanner vs Drum Scanner

    Interestingly this shows the problem with flat beds and dslrs as scanners - if you boost the shadows you see the amount of halation or flare from the light to dark areas 125983

    Drum scanners get...
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    Re: Fujinon A 240mm f/9 vs Nikkor M 200mm f/8

    The 200 tessar has a beautiful look too it and is truly tiny. The look is one of the most identifiable features and so it really shines over the 240A when used at larger apertures (plasmats look a...
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