Jonathan, Your shutter is probably delivering longer exposure times than the indicator shows. So your question is a fair one … but I would stick to using longer times … so IMO I'd go with 1/100th in the case you are referring to. Color negative film will accommodate quite a bit of overexposure if memory serves me right. Andy On Mar 31, 2014, at 4:31 AM, Jonathan Turner wrote: > Hi, > > I recently bought an old large format field camera that came with a lens which is so old it has shutter speeds that don't correspond with my light meter; it has 5th, 10th, 25th, 50th, 100th, 200th, instead of the normal shutter speeds (8th, 15th, 30th, 60th etc.) > > So my problem is trying to work out what the correct exposure should be...working from my meter. I'm shooting colour negative, so I'm guessing it can take a bit of latitude either way, but can't quite work out if I should go with an exposure that is slightly over, or slightly under what the meter says. For example, if my meter reading is F8/125th, should I shoot at F8/100th, or F8/200th? > > Any input appreciated. > > Cheers, > Jonathan. > -- > Jonathan Turner, Photographer e: pictures@xxxxxxxxxxxxxxxxxxx t: 07796 470573 w: www.jonathan-turner.com >