The same function is available with these and other spot meters using wired trigger.
I very much prefer and recommend the Sekonic L-558 (or L-558R) meter*.
It does everything, including incident and 1° spot, for ambient, flash, or a combination thereof.
The L-758 is similar but with many unneeded bells and whistles (e.g. USB interface), at a much higher price.
The L-558 is unfortunately no longer made (replaced by the L-758) but is readily available used for around $350.
The basic L-558 requires an optional plug-in radio transmitter to trigger flash in wireless mode (PocketWizard compatible).
That transmitter is factory-installed in the L-558R (that's what the R suffix means).
As with the PocketWizard itself, different transmitters are used in different parts of the world. Be sure to get the right one.
Why a flash spot meter? I know it has limited uses. I used it for testing more than anything. I don't want to elaborate in that. I once needed the spot flash meter because I lighted a large aquarium from the top but I couldn't put the incident meter where the fish are. Poisson if I am not mistaken, you seemed to indicate that flash meters are only incident type? Flashmeters are available in both spot and wide angle reflective although they are not very useful but I wouldn't say there is no use for them.
Well, I understand the mechanics. Read my original post regarding retracted half dome vs. flat diffuser and why the earlier might not be very accurate. Your response doesn't really answer the question and the manual sheds very little light. Most useful answer will probably come from someone tests their equipment in a similar way. Again, not trying to be a butt head. But easy answers to complex questions just don't satisfy. Otherwise, I could have figured it out.
The product was designed and tested by individuals far more competent than any on this board,
using calibrated test equipment and standardized facilities and procedures.
What is your basis for questioning their results? What qualifications do you have for doing so?
I can barely get my head around why this (retracted dome) is or could be perceived as an issue or something likely to give rise to errors. I have to agree with Leigh, above. Have errors actually been observed through using the flashmeter this way? If so, how were the results qualified as directly related to the collar around the retracted dome? Or are we boxing at shadows?
I am particularly intrigued by this:
Speculation is one thing, but results from actively experimenting should answer the question.Quote:
In such cases, the Sekonic and Gossen would seem to inject a lot of error into the measuring process.