IglooEater said:Or maybe a 10-1000 f/1.0. ;D
I knew they were just holding out on us all this time.
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IglooEater said:Or maybe a 10-1000 f/1.0. ;D
cayenne said:Oooooh!!
I gotta put an alert for myself on cannon watch......and try to grab one of these bad boys on a refurb sale!!!
cayenne
That's why it is marked "PE". I wonder what PE stands for.
Pippan said:I'm wondering what use 6" of DOF would be in a photofinish.
Antono Refa said:Pippan said:I'm wondering what use 6" of DOF would be in a photofinish.
The fast aperture could have been made for other reasons, say to shorten the exposure time in order to get a sharp photo (the horses are running fast at the finish line), or due to the low light, e.g. evening or overcast weather.
Dylan777 said:Great balance when mount it to an A9 ;D
Cochese said:Dylan777 said:Great balance when mount it to an A9 ;D
My guess it's an autofocus lens. If not, than I cannot for the life of me figure out why they'd have a focus limit switch on the body. Style? Looks? Took the body from another lens, but was too lazy to just cover that area up with a blank plate?
hne said:Antono Refa said:Pippan said:I'm wondering what use 6" of DOF would be in a photofinish.
The fast aperture could have been made for other reasons, say to shorten the exposure time in order to get a sharp photo (the horses are running fast at the finish line), or due to the low light, e.g. evening or overcast weather.
From the petapixel page, you can read they used it to expose 10000 strips of film per second, effectively meaning they'd need to use ISO800 at f/1.8 at LV12 (heavily overcast). ISO100 for sunny weather. Sounds reasonable.
At 100 meter distance you wouldn't be able to frame a 20m wide race track on a 24mm long strip of film but still have 250lp/ph resolution at the image extremes at f/1.8 looking down at a plane at a 30° angle
Mancubus said:But could they do a 400mm f/1.4?
LDS said:Mancubus said:But could they do a 400mm f/1.4?
Sure, but can you also afford the self-propelled vehicle to carry it around, and the electric-driven turret to aim it?
privatebydesign said:You laugh, Leica made a 1700mm f4 as a custom order for a Middle Eastern customer, along with the lens came a custom Mercedes G Wagon with a fixed mount for it in the back.
Jopa said:Cochese said:Dylan777 said:Great balance when mount it to an A9 ;D
My guess it's an autofocus lens. If not, than I cannot for the life of me figure out why they'd have a focus limit switch on the body. Style? Looks? Took the body from another lens, but was too lazy to just cover that area up with a blank plate?
Most likely they simply pre-focuse it on the mid of the finish line.
LDS said:Mancubus said:But could they do a 400mm f/1.4?
Sure, but can you also afford the self-propelled vehicle to carry it around, and the electric-driven turret to aim it?
Antono Refa said:hne said:Antono Refa said:Pippan said:I'm wondering what use 6" of DOF would be in a photofinish.
The fast aperture could have been made for other reasons, say to shorten the exposure time in order to get a sharp photo (the horses are running fast at the finish line), or due to the low light, e.g. evening or overcast weather.
From the petapixel page, you can read they used it to expose 10000 strips of film per second, effectively meaning they'd need to use ISO800 at f/1.8 at LV12 (heavily overcast). ISO100 for sunny weather. Sounds reasonable.
At 100 meter distance you wouldn't be able to frame a 20m wide race track on a 24mm long strip of film but still have 250lp/ph resolution at the image extremes at f/1.8 looking down at a plane at a 30° angle
By the end of the race, all the horses have converged on the inner tracks, same as runners do in the Olympics when running more than 400m, so they might need to frame 10m, or even less.
Cochese said:Dylan777 said:Great balance when mount it to an A9 ;D
My guess it's an autofocus lens. If not, than I cannot for the life of me figure out why they'd have a focus limit switch on the body. Style? Looks? Took the body from another lens, but was too lazy to just cover that area up with a blank plate?
100 said:There is a Zeiss Jena 400 f/1.5 but it’s kind of slow compared to a Super Schmidt telescope 510mm f/0.96 ;-)
https://patricelaborda.jimdo.com/2015/03/17/extreme-lenses-for-extreme-pictures/