AF500FTZ

 
Pentax 645N / Pentax 67Daylight Balanced Fill-Flash
Keeping Secrets
It never ceases to amaze me when companies sell professional-oriented products and then fail to provide their customers with the basic information needed for them to be utilized properly. An example of this is when trying to do daylight balanced fill-flash with either aPentax 67IIorPentax 645NIIcamera. 

I use Pentax's top-of-the-line flash unit, theAF500FTZ. (The information below may apply not only to this unit but to a great many other Pentax and other brand flash units, such asMetz, that work with the camera's TTL metering capability). 
This flash is capable of performing daylight fill-flash. But, unlike units fromCanonandNikon, for example, this flash does not have any means on the flash head to set a fill ratio.
As anyone doing fill-flash knows, it's important to set the flash to about -1.5 stops as compared to the ambient light level. Otherwise the flash effect is too strong and the subject loo...