WBPP for grouping different light exposures

Bruce Donzanti

I have used the grouping feature to group lights with different gain values.  Now I need to do different exposures with the same gain.  The keyword "exposure" cannot be used as it tries to force grouping of the flats and dark flats which is wrong.  I thought I would use "Light_Exposure".  I am not sure if this would work as underscore does not seem to work in WBPP.    So, I have two problems: 1) why isn't underscore working in the WBPP keyword field and 2) would: light_exposure work to combine the light frame data?

BlockHead

I think you just need to adjust the exposure tolerance setting in the post processing. 

Did you check out my most recent video? (let me know, or I can grab a screenshot)

Regarding the underscore...  there are a handful of characters that are "stop" characters. These are used to differentiate a keyword from its value. So "Light_Exposure" can't be a keyword. "LightExposure" can.  When WBPP parses the statement it things "Light" is the keyword and "Exposure" is the value (I think). The underscore is really the issue. Dashes, colons... things like that are all OK... see the attached.

-the Blockhead

Bruce Donzanti

ah..ok Earlier today I tried adjusting exposure tolerance under the LIGHT tab, which is wrong.  Then, when I tried doing it under the post processing but I made another error.  I used 600s instead of a number greater than the difference between both values.  Thanks for pointing that out.  I did not see your latest video which clearly demonstrates this.  I only had seen the older ones.  

Thanks for the attached chart.  I misunderstood the use of underscore and was only thinking of 'exposure" as a keyword, not a value.

Thx again

BlockHead

That exposure tolerance is for calibration purposes... Sometimes there are small differences in exposure times (like fractions of a second) and you want to group items for calibration purposes.

-the Blockhead