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  1. Re: My LED enlarger lightsource instructions / Complete parts list and build

    Forums are for loud thinking. I like that.


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  2. Re: My LED enlarger lightsource instructions / Complete parts list and build

    My words.


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  3. Re: My LED enlarger lightsource instructions / Complete parts list and build

    There were rumors that Arduino could be used as hardware malware carrier trough the USB port. Honestly for someone that is willing to distribute maleware that way the Arduino community isn't a great...
  4. Re: My LED enlarger lightsource instructions / Complete parts list and build

    Yes, this C-like environment of Arduino is a different one than the composition of a C++ project. I also use C# and .NET for "higher" programs.
    My code is anything but well formed. As a programmer...
  5. Re: My LED enlarger lightsource instructions / Complete parts list and build

    Ops.. sorry! I copied the link as text from the first post (there it works) with the '...' in the url.
    It's fixed now.
  6. Re: My LED enlarger lightsource instructions / Complete parts list and build

    The files of this project can now be found on Github: https://github.com/Mglattfelder/Enlarger-LED-Lightsource
    I will post all code and documentation changes on Github and announce it in this forum
  7. Re: My LED enlarger lightsource instructions / Complete parts list and build

    I was able to add to the timer a 0.1s increment option. From the YMC color mode and press # to toggle between 0.1s or 1s increments. When you go back to contrast control mode it will keep this 0.1s...
  8. Re: My LED enlarger lightsource instructions / Complete parts list and build

    Everyone was invited to build itís own board at the beginning of Arduino. The problem began when the chinese clones used the Ď made in italyí logo. I use professionally Arduino bootloader on custom...
  9. Re: My LED enlarger lightsource instructions / Complete parts list and build

    Technically there are no issues with clone boards. The word Ďcounterfeití came up as Arduino became a Trademark from a former more or less open source project.


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  10. Re: My LED enlarger lightsource instructions / Complete parts list and build

    Correct. It can control any ws2812b and compatible( there are some others that may work). The code has just a photographic specific function, but can be adapted to any use.
    Building first the...
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    Re: DIY 4x5 Enlarger with LED light source

    Since some of you have asked me directly, I have, as promised, made a detailed instruction for building an LED controller and convert an enlarger to a LED light source.
    You can find it in this...
  12. My LED enlarger lightsource instructions / Complete parts list and build

    The manual I am publishing here is the result of requests I received in this thread
    https://www.largeformatphotography.info/forum/showthread.php?155418-DIY-4x5-Enlarger-with-LED-light-source

    It's...
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    Re: DIY 4x5 Enlarger with LED light source

    I have decided to write detailed and accurate step by step building instructions. The goal is that even people who are not trained in electronic projects can build such a LED light source. A little...
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    Re: DIY "classic" 8x10 field camera

    Oh, well. Better don't ask my wife what I have already promised to build or repair.


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    Re: DIY 4x5 Enlarger with LED light source

    On any 'bigger' enlarger project I have done I have built a wired controller. I personally find it better too.
    But for such a small adapter a phone interface is almost mandatory. The connection...
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    Re: DIY 4x5 Enlarger with LED light source

    Yes. The phone controller can compute everything. Despite having only 32kB of RAM. It's basically an version of ESP8266. Cheap an reliable.
    Reversing the lenses makes all aligned with no distorsion....
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    Re: DIY 4x5 Enlarger with LED light source

    Don’t really know why LF is less popular. Maybe we are used to 'smaller' stuff here (our cars are smaller too). I use beta-layout.com for the boards. I used it to make make several prototypes of...
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    Re: DIY 4x5 Enlarger with LED light source

    Oh, they know their way around very well, and are among the leading analogue shops in Europe. But they make little turnover with large format. Also LF is in fact much less common here as over the...
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    Re: DIY 4x5 Enlarger with LED light source

    Thatís the idea. It depends from how interested the commercial partner Iím working with is. But I guess a kit version is possible even if the partner donít want to develop a commercial product. Then...
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    Re: DIY 4x5 Enlarger with LED light source

    They are really versatile and come already assembled in various ready to use form factors like the 8x8 or 16x16 matrix. Any arduino or other mcu can control them with an easy to use library. And the...
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    Re: DIY 4x5 Enlarger with LED light source

    205400
    I have finished an 8x10 enlarger as well. I used 12mm steel rods and a trapezoid thread for focusing. The bellows is the failed construction I had planned for the camera (it was too stiff)....
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    Re: DIY "classic" 8x10 field camera

    205396
    Now I have finally finished my 8x10 enlarger. I used 12mm steel rods and a trapezoid thread for focusing. The bellows is the failed construction I had planned for the camera (it was too...
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    Re: DIY "classic" 8x10 field camera

    Hard tropical wood can make sense. It is less prone to scratches and dents. I used spruce for the body and beech or birch would have been better. Beech is not really available in large planks...
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    Re: DIY "classic" 8x10 field camera

    I thank you (and everyone else) for the compliments. This not only helps my ego, but it is always a confirmation that I am on the right track. Well, yes: mother of pearl would be a bit too much of a...
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    Re: DIY "classic" 8x10 field camera

    I have now made such a ground glass and I am quite satisfied. The most difficult thing was to find the grit silicon carbide around here. I didn't find any 600s, only 400s. The new ground glass is not...
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    Re: DIY "classic" 8x10 field camera

    I see. I'm sure it works well... if I had a 138 I would consider it. But the only 138 I see starts at 700€ plus several 100€ shipping on eBay. Out of my budget.
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    Re: DIY "classic" 8x10 field camera

    I have already build an 4x5 enlarger (see my post here https://www.largeformatphotography.info/forum/showthread.php?155418-DIY-4x5-Enlarger-with-LED-light-source). I will use the same pole and table...
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    DIY "classic" 8x10 field camera

    204696
    I was a hobby photographer since the 80s and after a long break I had started to take analog pictures again. Large format photography was still too expensive for me in the 90s, but always a...
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    Re: DIY 4x5 Enlarger with LED light source

    No. You can use a strip as long it has ws2812b LED on it. These are compatible with the library. A neopixel matrix is just more comfortable as the LED are closer together and you donít need to solder...
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    Re: DIY 4x5 Enlarger with LED light source

    Cool! I think this head will be a good replacement. It produced no heat at all. The efficiency is really high and almost all the power goes into the light generation and not into heat.
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    Re: DIY 4x5 Enlarger with LED light source

    I had some PM with request for the code and bill of materials. I made a hook-up drawing too, but I'm not able to upload it in a decent resolution. Please PM me if you need it in readable resolution...
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    Re: DIY 4x5 Enlarger with LED light source

    There you go. After some tinkering with my color head control I got very good results with RA-4. Unfortunately, I only exposed a few 4x5 color negatives, so I don't have a large selection of...
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    Re: DIY 4x5 Enlarger with LED light source

    Cree LED stars go down till 450nm. That hits the highest contrast for sure. With some FET transistors you can control it digitally too with an arduino.
    I'm trying to find out how cose to contrast 5...
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    DIY 4x5 Enlarger with LED light source

    I wanted to present my project of a DIY 4x5 enlarger. Maybe one or the other has an interest or an opinion. I (like so many others) stopped taking analog photos some time ago and developed them...
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