إلفورد بيرسيتول - مطور حبيبات فائقة النعومة 1 لتر

That extra fine grain really delivers—my 35mm negs look almost medium format on the contact sheet. Yes, it cost me a stop of speed, but for tripod work it's a no-brainer. This 1L bottle mixed up clean and has been living in my darkroom fridge for months without any issues.

Mixed a batch for some slow film I’ve been testing, and the grain reduction is very noticeable even at 100% crop. The powder dissolved without clumps and stored fine for a week so far.

Mixed a batch for some Delta 100 and the grain practically disappeared, which is exactly what I wanted. It does cut the ISO in half, but the tonal range is gorgeous for portraits.