Okay, I found some numbers. The AA simulator works up to 1/1000 sec shutter, so it'll be a bit more effective with flash than I thought. Still hit or miss though depending on flash duration. It'll work best with hotshoe flashes running at near full power.
"[...] seems to indicate that the system is only oscillating at about 500 Hz." http://www.imaging-resource.com/PRODS/pentax-k3/pentax-k3SELECTIVE_LPF.HTM On Fri, Feb 6, 2015 at 2:13 PM, Bruce Walker <bruce.wal...@gmail.com> wrote: > It's going to depend on the brevity of the flash. The AA simulator is > a pretty high frequency oscillator, and though I don't recall the > exact duration for a round trip of the sensor, I seem to remember it > being about the same as the minimum flash sync time of 1/180th sec. > However flashes and strobes can have super short durations of > 1/10,000th second so yeah, AA simulator is out for that kind of > shooting. > > But lots of folks shoot with continuous light, like CFL, LED or > tungsten. Would be fine with AA simulator. > > > On Fri, Feb 6, 2015 at 1:51 PM, J C OConnell <hifis...@gate.net> wrote: >> isnt it true that the AA simulator doesnt work with flash, so classic >> portrait photography >> must be done without the aa filter. ?? >> jco >> >> On 2/5/2015 10:26 PM, Rob Studdert wrote: >>> >>> I've had some moire issues with clothing materials when shooting full >>> length portraits, I hadn't had any problems before so I only spotted >>> the issue in post. >>> >>> >>> >>> On 6 February 2015 at 13:46, John <sesso...@earthlink.net> wrote: >>>> >>>> I"ve had no reason to use it so far. >>>> >>>> On 2/5/2015 9:17 PM, Mark C wrote: >>>>> >>>>> When the K-3 came out once feature that contributed to the press >>>>> coverage was the Anti Alias filter simulator. So after more than a year >>>>> with the K-3 I can say that I only turned the AA simulator on once, to >>>>> see what it would do. On my camera, it does make a distinct sound during >>>>> exposures when enabled... Otherwise I have never used it, but I really >>>>> don't shoot many images where there is fabric or other things that might >>>>> kick off moire' patterns. >>>>> >>>>> So - do you use it? >>>>> >>>>> Mark >>>>> >>>>> --- >>>>> This email is free from viruses and malware because avast! Antivirus >>>>> protection is active. >>>>> http://www.avast.com >>>>> >>>>> >>>> -- >>>> Science - Questions we may never find answers for. >>>> Religion - Answers we must never question. >>>> >>>> >>>> -- >>>> 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. >>> >>> >>> >> >> >> -- >> 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. > > > > -- > -bmw -- -bmw -- 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.
