[magick-users] Large work files and result file when converting from multi TIFFs into single multipage TIFF

[JLarrazabal at cfglife.com]

I have been struggling to find the correct arguments to use within the 
ImageMagick "convert" command to take several (sometimes more than 20) 
TIFF images and create a single TIFF image that is multiple pages.  The 
command I have used is:

convert image001.tif image002.tif image003.tif ... imageN.tif -append 
image.tif

Problems I have seen as this attempts to convert the image:
* The input TIF images are less than 50K each yet the temporary images are 
each around 36M
* The result image is 250M
* Performance is very slow

Anyone done this with good results?

Thanks!
Jose