I gave some incorrect information on the distance's the sensor is good for. It varies with ISO, the chart in the manual give the appropriate distance values.
P. J. Alling wrote: > It doesn't know which aperture you choose. You do. It assumes. If you > set the ISO on the back of the flash to the ISO you are going to use, > (it tops out at 800). The red and green scales, (the red and green bars > under the fstop scale), look something like this (forgive the crappy > text graphics). > > ______w__I__t Green (High Power) > __________w__I__t Red (Low Power) > > On the sliding scale Pick the nearest f stop to the tall center uptick > either red or green depending on where you set the auto/power setting. > The flash assumes that setting. The meter and feet values tell you the > minimum, (where the horizontal bar begins), and maximum, (where the > uptic, index mark), distance that the flash sensor will give a good > exposure. You can extrapolate the f stop values higher ISOs but you kind > of run out of f stops at distances where the sensor is guaranteed to work. > > Boris Liberman wrote: > >> Cory, when you say "work well" you mean that flash measures the light >> on its own and it gives correct exposure as a result, right? If so, >> how does flash knows which aperture I chose? >> >> Thanks. >> >> On 9/24/07, cbwaters <[EMAIL PROTECTED]> wrote: >> >> >>> Boris, >>> I have both the AF 200T and the 280. They both seem to work well in their >>> "auto" setting with my K10. Of course, TTL is out, but I think I used them >>> mostly in auto on the *istD anyway. >>> >>> Cory >>> >>> ----- Original Message ----- >>> From: "Boris Liberman" <[EMAIL PROTECTED]> >>> To: "Pentax-Discuss Mail List" <PDML@pdml.net> >>> Sent: Monday, September 24, 2007 5:58 AM >>> Subject: Thinking of AF280T flash >>> >>> >>> >>> >>>> Hi! >>>> >>>> I have AF220T unit which is a good flash, but it can only give me a >>>> full discharge on K10D. I don't want to buy either 540th or 360th >>>> flashes. They are too expensive and 360th does not swivel. >>>> >>>> It seems that AF280T has both manual control on the power of discharge >>>> and its own light sensor. Do you think it would be a reasonable flash >>>> for K10D (in fully manual mode) that both tilts and swivels and can >>>> measure light on its own for better exposure? >>>> >>>> Anyone on the list using AF280T with their K10D? Anyone willing to enable >>>> me? >>>> >>>> Thanks. >>>> >>>> -- >>>> Boris >>>> >>>> -- >>>> PDML Pentax-Discuss Mail List >>>> PDML@pdml.net >>>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>>> >>>> >>>> -- >>>> No virus found in this incoming message. >>>> Checked by AVG Free Edition. >>>> Version: 7.5.488 / Virus Database: 269.13.28/1023 - Release Date: >>>> 9/22/2007 1:27 PM >>>> >>>> >>>> >>>> >>> -- >>> PDML Pentax-Discuss Mail List >>> PDML@pdml.net >>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>> >>> >>> >> >> > > > -- Remember, it’s pillage then burn. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
