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Zeiss Tele-Tessar 500mm f/8 - well travelled, US$0.5M estimate
#7
Quote:Dunno if I am understanding things wrong, but a lens designed to work in air glass environment, will it work the same in glass nothing environment ?
 

Look at the refractive index:

Vacuum: 1.0000

Air: 1.0003

Water: 1.33

Glass: 1.52 (Schott BK7)

 

So is the difference between air and a vacuum significant? For photographic purposes I'd say no.
<a class="bbc_url" href="http://snowporing.deviantart.com/">dA</a> Canon 7D2, 7D, 5D2, 600D, 450D, 300D IR modified, 1D, EF-S 10-18, 15-85, EF 35/2, 85/1.8, 135/2, 70-300L, 100-400L, MP-E65, Zeiss 2/50, Sigma 150 macro, 120-300/2.8, Samyang 8mm fisheye, Olympus E-P1, Panasonic 20/1.7, Sony HX9V, Fuji X100.
  


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Zeiss Tele-Tessar 500mm f/8 - well travelled, US$0.5M estimate - by popo - 04-22-2016, 08:46 AM

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