I have no problems getting clear hand-held shots with ASA 400 film at f/2.8, 1/4-1/8 second, EV 3 on the chart you referenced. Without IS.
With my G1, I find quite a number of excellent shots, even of people moving, at light levels which, according to your chart, is ISO -1. Heck, I have some very nice results with the older sensors in the L1 and E-1 at EV -1, 0 and 1 too. With the E-5, with IBIS, I have some work down in the -2 to -4 range; some of those were on client jobs. It looked great in publication ... That's why I bought the E-5, for the extra couple of stops of sensitivity when I was shooting events and editorial portraiture. I can't say what other people get with their cameras. I'm not them. But I suspect your notion of low light and how superior the K5 might be is somewhat arbitrary and suffers from a lack of experience with the FT/mFT cameras. They do better than you seem to think in low light. BTW: I'm not saying the K5 is bad, the sensor performance is actually darn good. But it's not the Holy Grail by any means. (Note: I don't own any of the f/0.95 lenses. My fastest lenses are f/1.4, most of my lenses are f/2 or f/2.8. A lot of my low light Pentax work was done with the excellent 20-35/4 and 21/3.2 Limited.) I'll let you know how the E-M1 performs in "dim" light. ;-) G On Oct 9, 2013, at 10:07 PM, Larry Colen <l...@red4est.com> wrote: > On Wed, Oct 09, 2013 at 08:03:42PM -0700, Godfrey DiGiorgi wrote: >> Please define "low light" vs "dim light" for me. EV values would be useful >> as a basis of comparison. > > I guess I'd say that low light is in the range where it is > challenging to get a clear photo, hand held, even with a K-5. > > Looking at this chart, which only goes up to ISO 3200: > http://www.fredparker.com/ultexp1.htm#EXPOSURE%20FACTOR%20RELATIONSHIP%20CHART%20B > > It looks like that's somewhere around EV -1, or EV 0, maybe as high as EV 1. > ISO 3200, 1/8 second f/1.4 is EV -1 > > I'd say that dim light is in the range where it would be > challenging to get a clear shot, hand held with one of my film cameras > > ISO 400, 1/30 second f/1.4 is is EV 4. > > It is my gut feeling that up until the current (soon to be previous) > generation of u4/3 they were probably OK up to about EV 3. > The current generation is probably good to EV 2, maybe 1 before things > start getting rough. > > Most of my experience is based on looking at one or two other people's > photos, so I'm not going say my figures are exact. But with the current > generation sensors, and the faster shorter lenses available in u4/3, their > low light ability is close to that of a K-5 thanks to the extra stop of > speed you can get with the f/0.95 lens, and focus peaking for low light focus. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
