Originally posted by amoringello Just note that when using flash, Pentax uses the entire sensor area for metering.
i.e. There is no Matrix nor Spot metering when using flash.
If you have a non-PTTL connection to your flash (Non-PTTL wireless, or non-PTTL wire), the camera may still make use of spot and matrix metering. But a PTTL flash in manual mode will still use PTTL and subject the camera to full sensor metering.
The biggest problem is when you're trying to "spot meter" on your centered subject if you do not realize that a highlight on the outer edge is still going to throw off the exposure. Its like a cruel joke not advertised by Pentax. But they will tell you if you call their support people and ask.
Once you know some of PTTL's behavioral quirks and limitations it isn't all that awful. Don't get me wrong... Its still pretty bad, but being more intelligent than the camera, you can figure out ways to make most shots work. (even if that finally means working in manual mode)
It just takes some practice and more practice. You'll eventually be able to figure out what to do to "fix" the issue.
Hi, thanks for the heads up but i think there's a misunderstanding here and to prevent confusion to others, lemme clarify.
Across all brand, there is no spot or matrix metering when using flash, for flash.
We shoot in manual mode with matrix metering because we are wanting to expose for the ambient exposure, and to keep it consistent.
And then add in flash, controlled via flash EV compensation.
That's why i state that when dealing with flash, we are always dealing with 2 different exposures; ambient exposure and flash exposure.
We seek a balance between the 2 accordingly to individual's photographic taste and style.
First, expose for the ambient exposure, adjusting the shutter speed, aperture, ISO.
(Manual mode with matrix metering is the best since it will be more consistent as compared to the other modes)
Then, *adjust flash EV compensation to control the flash(p-TTL)..
*if you are shooting Manual flash, then manually adjust the power output.
It's the same actually... ;P
Just....remember..... balance.... two... different... exposures.... ambient exposure... and.... flash exposure...