Up to now, I’ve only been doing single transfer carbon prints. Perfectly fine, but how about doing that other version, the double transfer? I ran a failed experiment a few weeks ago using Yupo as the temporary support. Yeah…that doesn’t work. But then I picked up a magic, very special material that did work…
Continue reading “Double transfer: going once, going twice”Author: admin
Sickly colors – the crossover issue
I like to print color RA4. That’s no secret. And I like to tinker. I’m not alone in this, and as a result, working with color film and printing color RA4 pops up regularly in one way or another on the photo forums. One issue that often meshes into technical discussions on ‘analog color’ is that of color crossover. Some people immediately ‘get it’, probably because they have experience looking at and analyzing color crossover. Others struggle with the topic and don’t know exactly what to look for. In this post, I’m going to try and illustrate the issue through some (digital!) mockups.
Continue reading “Sickly colors – the crossover issue”Some small prints and a note on Fomapan 200
Yesterday I made some prints. Small ones. Firstly, because I like small prints. Secondly, I had made tissue last week and wanted to try it out. Thirdly, I had these negatives sitting here and they weren’t particularly suited for what they were intended to do, so I gave it a shot with carbon transfer. When life gives you lemons, eh? Well, this lemon here I grew all by myself!
Continue reading “Some small prints and a note on Fomapan 200”The Big Ugly, part 4: (im)perfect present
Here we are, and this is Now. So far, I have written about the two generations of problematic and/or quasi-successful color enlarger light sources I’ve made and the lessons I’ve learned along the way. But all that is in the past. This blog is about the current, 3rd generation of the LED color light source for my (t)rusty Durst 138. It incorporates most of the lessons I learned along the way – and brought me some new ones, no doubt.
Continue reading “The Big Ugly, part 4: (im)perfect present”The Big Ugly, part 3: proper SMD LEDs, but no cigar (?)
In the previous part of this series, I told about the lessons I learned by trying to use a single RGB COB LED as a light source for both RA4 and B&W enlarging. I took those lessons and gave it another go, this time using a fundamentally different approach. As the title suggests, no cigar yet – although this isn’t really accurate. The second generation device I built was actually used for a year or two before I was sufficiently annoyed by its shortcomings to replace it. So the second generation actually did work – albeit with some caveats.
Continue reading “The Big Ugly, part 3: proper SMD LEDs, but no cigar (?)”The Big Ugly, part 2: the RGB COB LED approach to color enlarging
Previously, I explained why I thought I needed a color light source and in general terms what it should be capable of. I also highlighted that it’s not so much a project with a clearly defined end (or at least, that hasn’t materialized yet), but more of a journey that continues into the present, and probably future as well. In this part, I’ll go through the phases this project has gone through. That is to say, there are really three distinct generations of the device I’ve built, and each has taught me different lessons. Before going into some details of the current (and 3rd) rendition, I’ll try to go through each generation and explain what it was/is and what its main caveats were (especially generations 1 & 2). Let’s start with the first generation I built.
Continue reading “The Big Ugly, part 2: the RGB COB LED approach to color enlarging”The Big Ugly, or building a LED color printing light source. Part 1: the beginnings
Previously, I bashed compound/integrated RGB LEDs such as RGB COB LEDs for the application of a color enlarger for RA4 prints. That was basically a lesson learned the hard way when building a LED-based color enlarger light source. In this series, because one post is probably not going to be enough, I’ll highlight some aspects of the system I’ve built. Or I should say: I’ve built so far, because it’s really just a prototype that will likely never be really finished. Hence the title, The Big Ugly. Because there’s one thing it isn’t, and that’s beautiful. But hey, it works! Sort of. Most of the time. Within reasonable limits. If I’m careful.
Continue reading “The Big Ugly, or building a LED color printing light source. Part 1: the beginnings”Tissue making – curl up and dye
Ok, sorry – inappropriate title again. Evidently, no dye is involved in carbon transfer tissue making. As far as I know, any attempt to add dye to tissue will cause staining of porous final supports, so it’s really pigments all the way. But the reference to the Blues Brothers movie was just too good to pass. Besides, the ‘curl up’ part is pretty accurate! Anyway, here’s part two of the blog I did earlier on making carbon transfer glop. With all the bubbles gone, it’s time to turn glop into tissue!
Continue reading “Tissue making – curl up and dye”Making glop – and some words on sugar, glycerin and ink
Glop, gloop, pigmented gelatin – whatever you name it: it’s that pretty awesome looking slithery stuff that forms the basis of a carbon transfer image. Looking at liquid, bubble-free glop at the right angle is a bit like staring into a black hole. It surprises me Anish Kapoor never caught onto it, really. Anyway, today is glop-making day again as I’m running out of 8×10 tissue. I took some pics and will (probably) follow up next time with tissue-making.
Continue reading “Making glop – and some words on sugar, glycerin and ink”Why RGB LEDs suck for a color RA4 enlarger
Not many people are crazy enough to build a light source for a color enlarger. From time to time, someone picks up the challenge and posts about it online. Most of the time, the concept revolves around some form of RGB LEDs, whether that be led strips, Chip-On-Board (COB) LEDs or even addressable LED ‘beads’ such as the popular WS2812. All of these are in my opinion doomed to fail miserably to produce quality RA4 prints. Let me explain why.
Continue reading “Why RGB LEDs suck for a color RA4 enlarger”