Head to head
Ilford FP4+ vs Fujifilm Acros II
Two slow-to-medium black and white films that keep landing in the same shopping cart for landscape, portrait, and architecture work, both built around fine grain and a clean tonal scale. FP4+ (ISO 125) is the classic Ilford emulsion that has been around forever; Acros II (ISO 100) is Fujifilm's relaunched fine-grain stock. The single biggest difference shows up on long exposures: Acros II barely needs reciprocity compensation where FP4+ wants a meaningful correction.
How they differ
Rendering is where taste enters. FP4+ has a slightly more visible, pleasant grain and a long, gentle tonal curve that handles overexposure gracefully, so it forgives metering slop and gives you a forgiving negative to print or scan. Acros II runs finer and cleaner, with very smooth gradation and a slightly cooler, more clinical look that holds delicate highlight separation. At box speed in good light most people would have to look hard to tell scans apart, but push the shadows or print big and FP4+ reads as traditional while Acros II reads as modern and tight.
Practical handling splits them further. Acros II is famous for its reciprocity behavior, holding metered times out to roughly two minutes before needing much correction, which makes it the obvious choice for night, ND-filter daytime long exposures, and pinhole. FP4+ needs compensation sooner and you keep a chart handy. On cost and supply, FP4+ wins: it is cheaper, almost always in stock, comes in 35mm, 120, and sheet sizes, and has decades of published development data. Acros II costs more, supply has been less reliable since the relaunch, and it is sold in 35mm and 120 only.
Choose Ilford FP4+
Pick FP4+ if you want a forgiving, do-anything black and white film that prints classic and never gives you sourcing headaches. It suits beginners learning to develop, shooters who want sheet film, and anyone on a budget who shoots a lot. The wider exposure latitude rewards handheld and unmetered work, and the deep base of dev recipes means you can dial in any look you want.
Full Ilford FP4+ guide →Choose Fujifilm Acros II
Pick Acros II if you shoot long exposures, night scenes, or daytime ND work where reciprocity failure is the enemy, because that is its standout trick. It also rewards people chasing the absolute finest grain and smoothest tonality at ISO 100, especially for big enlargements or high-resolution scans. You pay more and you accept patchier availability, but the clean, controlled look is the payoff.
Full Fujifilm Acros II guide →The verdict
They are genuinely close in normal daylight, and either will make beautiful negatives. Reach for Acros II when exposures get long or you want the cleanest possible grain, and reach for FP4+ for everything else, especially if cost, sheet film, or always being in stock matters. Honestly, for most shooting it comes down to budget and the look you prefer.