Opticallimits > Forums > Just Talk > Zeiss Tele-Tessar 500mm f/8 - well travelled, US$0.5M estimate
Opticallimits > Forums > Just Talk > Zeiss Tele-Tessar 500mm f/8 - well travelled, US$0.5M estimate

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Thread Modes
Zeiss Tele-Tessar 500mm f/8 - well travelled, US$0.5M estimate
toni-a Offline
All-Star
*****
Posts: 2,722
Threads: 594
Joined: Apr 2010
Reputation: 15
#8
04-22-2016, 08:52 AM
Quote: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.
now that makes sense

Many thanks popo for clarifying
Find
Reply
  


Messages In This Thread
Zeiss Tele-Tessar 500mm f/8 - well travelled, US$0.5M estimate - by toni-a - 04-22-2016, 08:52 AM

Forum Jump:


Users browsing this thread:
1 Guest(s)