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    Re: September 2015 Portraits

    It's not just a centre-vs-edge thing, it's a focused-vs-unfocused variation as well.

    Near the edges (well, not the extremes), you can still get a fairly-well focused image, i.e. all the light...
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    Re: Open source f/stop enlarger timer

    Mouser should sell you everything except maybe the LCD and Arduino, which I typically buy from eBay. For example, see item numbers 161015559852, 121691768076/311232919649 and 301696345731 (not sure...
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    Re: Open source f/stop enlarger timer

    While that would be possible, it would be much more expensive than you just buying the parts directly. Shipping stuff to Australia and then onwards internationally is quite costly.
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    Re: Open source f/stop enlarger timer

    Update: I have added a couple of demonstration videos, which demonstrate simple exposures, test strip generation, multi-step exposure programs, scaling prints, drydown compensation and baseboard...
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    Re: DeVere 504 hot smell

    Yeah, I've had it apart and a good look through it (my initial hypothesis was a poor/ohmic electrical connection) and nothing is obviously where it shouldn't be. I've previously replaced the lamp...
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    DeVere 504 hot smell

    Hey all,

    I've got a 504 (pretty old, looks like this) that I've been using for a few years and it works great, but it has a really nasty hot smell coming from the head when turned on for more than...
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    Re: Frame size for 14x17 and 16x20 Print

    I like 24x28" (600x700mm) for 16x20 prints. Using 20x24 means the frames look a bit skinny.

    If you're making 24x28 mattes, buy the oversized boards. They cost a bit more but you can get two...
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    Mighty Mongrel Mob

    Colour LF portraits of NZ mobsters - Jono Rotman.
  9. Re: Scanning color negatives/slide film - Vuescan

    Apologies for the late reply, but there is a VueScan/C41 Howto in my FAQ. The photos are missing from it due to the website being hacked and me not backing it up, but the text should still cover...
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    Re: 3d printed lens caps

    Yeah, but I'd use plain old ABS or PLA.
  11. Thread: Imagine this

    by polyglot
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    Re: Imagine this

    Yes, you can calibrate your scanner. Fix the exposure, scan a step-wedge and record all the readings. Scanners are merely high-resolution densitometers.
  12. Re: Black and White book printing, what is the best quality option?

    Bookbinding doesn't have to be expensive; there's a whole industry centered around the binding of PhD theses. You supply a stack of pages with sufficient gutter etc, and you get back hardcover books...
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    Re: Long focal-length lenses: less sharp ?

    Some chromatic aberrations like secondary spectrum are proportional to focal length, which is the reason why you see expensive APO lenses that try to correct for that in the longer focal lengths. If...
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    Re: digital archive questions 1,2,3

    1) scan once, the best you can.
    2) for me, 2500dpi for 4x5", but it will depend on your hardware.
    3) VueScan, exiftool, and an external (SQL) database of content tags.
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    Re: Backup smaller format - what's in your bag

    Sony A99 and Mamiya RZ67. Not so much backups though as for different purposes - horses for courses. Usually I will have only one with me - for example I don't take the little cameras if I'm going...
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    Re: Show Me Your Night Shots!

    Good stuff, TML. I like the symmetry of both the photographer and painter concurrently capturing the bridge.
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    Re: Scanning Issues - White Noise

    Is it maybe specular reflections off texture in the paper?
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    Re: How about some infrared images

    This is good.
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    Re: Can multiple scans increase resolution?

    Yes you can, using superresolution. It requires that you deliberately and physically jitter the position of the film in the scanner between exposures and then combine them digitally. It...
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    Re: E6 chems in Australia

    Oh. Shit. I was depending on them for affordable colour chemistry, and they've stopped shipping the Digibase too.

    I'm right for a few more months, but will want to buy a bunch of developer soon....
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    Re: 360mm Tele-Arton or Xenar?

    I scored a 360 Tele-Arton off LFPF after doing basically the same searching you seem to be and it works very well. I chose it on the basis that it has plenty of coverage (I like to use swings) and...
  22. Re: Any interest in a modern timer release for LF lens?

    the electronic timers (at least for flash) have triac outputs, which are a bit annoying for converting to drive a solenoid. Far easier to just use a micro and implement the timing directly, instead...
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    Re: Open source f/stop enlarger timer

    New v0.6 software release with support for baseboard spot-metering. You'll need to do your paper-calibration manually for now, but I may add the ability to load paper-curves into the timer one day....
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    Re: How about some infrared images

    thanks everyone
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    Re: How about some infrared images

    https://farm6.staticflickr.com/5559/14561040436_20fde40b41_b.jpg
    4x5 IR820, R72, 150mm Nikkor-W, Toyo 45A, Xtol rotary. Thought I posted this before but can't see it in the thread, oh well.
    ...
  26. Re: Jobo 3005 8x10 drum, how do you use it on a CPA/CPP with lift ?

    My lift handle came pre-broken and I often print in a 3063 (20x24") drum. What I do is:
    - stop the rotation
    - use my left hand to raise the elbow of the lift (right underneath where the cogs...
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    Re: Post your Urbex shots

    There used to be an asylum/jail for the criminally insane in Adelaide, referred to as "Z Ward, Glenside". It closed in the 70s and was recently sold off for use as office space; I managed to get two...
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    Re: Large Format Landscapes

    This is fantastic.
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    Re: DIY Motorized roller base

    Lovely. I use a lift on mine and therefore the cog for drive, but I believe that when no lift is involved, there is usually a big circular magnet glued on the base of the tank. The magnet couples...
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    Re: So. What do you do with 1megabyte files?

    Hard drives off-site are IMHO the best+easiest option. Cheaper and more-reliable than DVDs, without the bandwidth and cost issues of the cloud. Sure, the cloud is not really secure, but then...
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    Re: Portrait Background Recommendations

    Try some old hessian sacks; gives a bit of texture and won't show creases. Put it out-of-focus if you don't want as much texture. It's a bit darker than caucasian skin so easier to get good...
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    Re: Portra 160 and 400 Reciprocity Failure

    Not when reciprocity is failing! That's the whole thing, it's reciprocity failure, i.e. the film fails to follow the whole a-stop-is-a-stop reciprocity rule wherein film-plane illuminance (~= scene...
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    Re: Replacing a Capacitor (Polaroid Processor)

    What you have is a small-signal capacitor. It can block high voltages and has a lovely frequency response but it is not designed for power-factor correction, which implies continuous duty at...
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    Re: Polaroid 8x10 question

    As per my post in the other thread, that is NOT a suitable replacement capacitor because it is not rated for the current you're subjecting it to. Buy a proper motor capacitor, it will still be only...
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    Re: Replacing a Capacitor (Polaroid Processor)

    It's a motor-start capacitor, which needs to handle significant surge currents. You CANNOT replace it with that tiny polyester capacitor linked above because it will explode.

    Secondly, are you...
  36. Re: Compur 3 Electronic Shutter - NEED Battery Holder

    No source sorry, but you can use any 3-6V source, eg 3xAAA, a CR123 or any other lithium cell. PM me and I can check the polarity of mine if you want to graft an external battery pack on. The...
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    Re: Canberra next week

    cheers; that should keep me entertained for a couple hours!
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    Re: Canberra next week

    thanks, I'll have a look.

    Is it worth getting up on one of the neighboring mountains?
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    Re: Is a 3D Printed LF camera Possible?

    Absolutely it is possible. Laser-cut acrylic is likely a more-appropriate technology if you want to design something unique and have it manufactured on the cheap without lots of hard work.

    Look...
  40. Re: Jobo 3005 pump broken: how save the wet film?

    For future reference, you can blow into a 3xxx tank to open it. The only thing you need to be careful of is that it may bruise your face when the lid pops so to prevent that:
    - fill it 95% full...
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