Paul, there's only one way to get more power with PTTL that I know of but it is 'a bit' bulky and 'slightly' expensive... Metz 76MZ5. I wouldn't say it is interesting on a power/price POV however.
On Mon, Aug 3, 2009 at 3:43 PM, Paul Stenquist<pnstenqu...@comcast.net> wrote: > I have no problems with my 540s. I use them constantly, often in high-speed > synch mode. The only thing I'd ask for is more power and a better remote > battery pack. > Paul > On Aug 3, 2009, at 9:38 AM, Allison Viron wrote: > >> Since my last four posts since my test didn't get through, I don't expect >> this to either, but it is worth a try... >> >> I actually have the Sigma flash, and it seems to work well on my K20. I >> noticed that it does severely underexpose if the built in diffuser is pulled >> out, but it works if I just don't mess with that. I think I just lucked out >> with my Sigma working. I did want the 540, but at the time I didn't think I >> could afford it (I am not really sure why I thought this...I make all kinds >> of exceptions for camera gear ;o) I t just seems that there isn't a perfect >> flash solution with a Pentax camera. >> >> Allison >> >>> >>> >>> On Sun, Aug 2, 2009 at 10:42 PM, John Sessoms<jsessoms...@nc.rr.com> >>> wrote: >>>> >>>> From: Larry Colen >>>>> >>>>> On Sat, Aug 01, 2009 at 11:45:02AM -0400, Adam Maas wrote: >>>>>> >>>>>>> The Sigma flashes have a well-earned reputation for being cheap junk. >>>>>>> They're both cheaply built and also very rarely actually fully >>>>>>> compatible with the flash protocol they claim to support. >>>>> >>>>> That's good to know. >>>>> >>>>>>>> Metz on the other hand makes superb kit. >>>>> >>>>> If I stick with Pentax, I may well need to find something to replace >>>>> my AF540. I swear that I spend more time fighting that POS than I do >>>>> with it operating correctly. >>>>> Sometimes P-TTL works beautifully, sometimes I just get something >>>>> about four stops underexposed. That, however, may be the camera, >>>>> someone said that they tried a K-7 and where the K20 metered on the >>>>> reflection of the flash the K-7 metered on the rest of the scene. >>>>> >>>>> Since I can't trust P-TTL to work properly, or may have other reasons >>>>> to shoot in manual flash mode, I frequently want to. My AF-540 will >>>>> not stay in manual mode. It'll work in manual for a while and will >>>>> then spontaneously decide that what I really need is P-TTL. >>>>> I even sent it in to be repaired. They replaced a bunch of the >>>>> circuitry, but it still decides it knows better than me what I want. >>>>> >>>> >>>> I don't think it's possible to "repair" it so it won't do that. My >>>> experience with the AF-540 is it will stay in whatever mode you set it >>>> in >>>> until it powers itself down to save the batteries. >>>> >>>> When it powers up again it reverts to P-TTL and I think that's the way >>>> Pentax designed it. >>> >>> So it's broken by design. One reason I love the mode switch on my >>> Nikon Speedlights. No way for the flash to override hardware selection >>> of mode. >>> >>>> >>>>> Another peeve is that there is no manual control over the in camera >>>>> flash. I have studio strobes that can be optically triggered, but >>>>> there seems to be no way of doing so without putting a little dumb >>>>> external flash on my camera. It would be so simple to have a menu item >>>>> to run the flash manually at full power down to 1/16 at 1/2 stop >>>>> intervals. >>>> >>>> I wonder if setting the flash compensation for the built in flash to >>>> -2EV >>>> and fitting a small deflector to bounce it up to the ceiling would work? >>>> >>> >>> It might. But even then the preflash will trigger the strobes early. >>> If the strobes are smart enough to offer a preflash delay option, you >>> can also use a Nikon SG-3IR panel to block the visible portion of the >>> popup's firing (this should work for controlling a flash via wireless >>> TTL as well). >>> >>> >>> >> >> >> -- >> 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. > -- Thibault Massart aka Thibouille ---------------------- Photo: K10D,Z1,SuperA,KX,MX, P30t and KR-10x ;) ... Thinkpad: X23+UB,X60+UB Programing: D7 user (trying out D2007) -- 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.
