On Sat, Aug 28, 2010 at 9:10 PM, David J Brooks <[email protected]> wrote: > I have tested my hand helds with my istD and K10D and my D1. Digital > cameras always showed a difference of several stops from the hand > held. > > I use the meter on the camera now. > > Dave >
Reflective and incident meters read differently. If you want to compare, compare a spot meter (like the Pentax unit) to the spot meter in the camera. Expect the handheld to overexpose by a bit because your lenses have a T stop slower than their F stop so you lose a bit of light. Note that Nikon in particular tunes their meters to the sensor and may be well off what the expected reading is. The notional ISO on a digital isn't necessarily the actual ISO you're getting. Older Canon's and at least some Panasonic m43 bodies understate the ISO, with the actual value being 1/3-1/2 stop faster than expected. Some Nikon's (cough*D300*cough) are more than a little bit optimistic at high ISO ratings (the D300's Hi1, notionally ISO 6400, is in fact about ISO 4000) -Adam. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
