Earlier I identified some films that produce edge effects with Rodinal stand development,see post 7 here: http://www.apug.org/forums/forum37/26327-acutance-films.html Films are Adox/Efke 25 and 100,Plus-X,Tri-X and HP5. Now I tested FX-2 (stand),Rodinal and Pyrocat HD (semi-stand) for edge effects with Plus-X 120 printed 11x14.Pictures were of buildings along a river bank taken from a bridge, sun/shade. All 3 developers gave slight haloes (edge effects) round dark buildings,My impressions: FX-2 half strength -ISO 100, halo slightly obscured by grain. Rodinal 1:200 -ISO 64,very sharp edges, not much halo. Pyrocat HD 1:1:200 -ISO 100,quite sharp,probably the most halo(edge effect) For Plus-X I used Pyrocat HD 1:1:200 agitate 1min,stand till 25 min then agitate 10 sec then stand till 50min 68F, prints on grade 2. Any observations on stand/semi stand effects?