Tokina +0.4 achromat VS Tokina +0.5 quick film test

[Sebastien Farges]

Sorry no more movie available...

 

I will do a test when I will have the Tokina +0.4 achromat ;)

[Sean Cunningham]

The doublet wins, for my money.  Glad I got one ;)

[tony wilson]

that is cheating f4...
try it at f1.4 or even 0.95 : )

regardless of what john barlow says a simple locked off tripod test with camera taking lens wide open shows the improvements. of doublet close up over single element.
reduced spot size on a doublet correcting light ray path giving more clarity to the image.
in fact i just tested a +1 kinoptik doublet it destroys the single element angenieux.
chester moore hall invented the doublet in 1740 the design has been copied ever since if it was not needed or if single element was so good then doublet designs would of died out long ago.
doublets are the high end route.
tiffen and schneider use single element window glass called white water not optical bk7 in the close up they make.
they rely on people stopping down to improve performance.

achromatics require higher end optical glass and quality spec and build.really
stopping a bad optic down will cure most problems opening wide or one stop down from wide open shows the power of a good achromatic doublet design.

optical law transcends vimeo pictures

[Sebastien Farges]

that is cheating f4...
try it at f1.4 or even 0.95 : )

regardless of what john barlow says a simple locked off tripod test with camera taking lens wide open shows the improvements. of doublet close up over single element.
reduced spot size on a doublet correcting light ray path giving more clarity to the image.
in fact i just tested a +1 kinoptik doublet it destroys the single element angenieux.
chester moore hall invented the doublet in 1740 the design has been copied ever since if it was not needed or if single element was so good then doublet designs would of died out long ago.
doublets are the high end route.
tiffen and schneider use single element window glass called white water not optical bk7 in the close up they make.
they rely on people stopping down to improve performance.

achromatics require higher end optical glass and quality spec and build.really
stopping a bad optic down will cure most problems opening wide or one stop down from wide open shows the power of a good achromatic doublet design.

optical law transcends vimeo pictures

 

Thanks for your poetry :) Badfully I had the 0.4 five minutes and did not think of using it at fast aperture.