I'm building my gas-hypering chamber...
It can be done with a plain piece of steel pipe and a quality high vaccum pump. If vacuum is not very good then one can make more cycles of vacuum + filling with forming gas.
http://www.astropix.com/html/i_astro.../hypering.html
There is plenty of information from astronomers !!! thanks to them !!!
Hypering is a funny adventure...
with Acros there is no need about it, but LF Acros is to disappear
.
I disagree that TMY is close to Acros for that...
We have to remember that shadows have much more LIRF than highlights, so the edge Acros has it is very important to conserve shadow detail, very soon it delivers some 3 stops advantage over TMY in the shadows.
TMY is very, very far from Acros performance... but this depends a bit on the exposure time, and scene shadow depth...
Bookmarks