Concentré Liquide de Développeur ILFOTEC DD-X - 1L

Used a 1+4 dilution on some Delta 100 and the negatives came out with that classic fine grain and smooth tonal range I've been chasing. A liter lasts a good while since you can reuse the working solution, so the price feels fair.

The dilution ratio is forgiving enough that I didn't stress over measuring, and the grain on my Delta 400 negatives stayed beautifully tight even when I pushed a stop. Negatives came out with that smooth tonal range I was hoping for, and a liter lasts a long while at 1+4.

Mixed with the Delta 100 at 1+4 for twelve minutes and the negs just glow—tonal range is gorgeous, grain practically invisible even in the mid-tones. Only regret is not buying the bigger size sooner.