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RF 800mm f/5.6 & RF 1200mm f/8 L USM IS announced
#8
I was looking around the net for the optical formula for the equivalent focal length lens from Nikon ........ ie the AF-S 800mm F5.6 etc ...... 
  
  I'm guessing from memory that there were two flourite elements at the front of the Nikkor 800mm lens ..... plus possibly a protective meniscus front element ....... 
 ........ just to satisfy my idle curiosity as to the weight difference between Canon's and Nikon's designs .....

  I can only open these two links by clicking here, but the script is in Japanese .... what are these two lenses ??


https://cweb.canon.jp/eos/rf/lineup/rf40...uction.png

vs

https://cweb.canon.jp/eos/rf/lineup/rf80...uction.png

   can anyone post a link for the optical formula of the Nikon's 800mm FL lens??
Dave's clichés
  


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RE: RF 800mm f/5.6 & RF 1200mm f/8 L USM IS announced - by davidmanze - 02-25-2022, 05:17 AM

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