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Posted: 7/2/2018 10:51:44 AM EDT
Get yours in September for $12k!!!
https://www.bhphotovideo.com/c/product/1369634-REG/sony_fe_400mm_f_2_8_gm.html 
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Posted: 7/2/2018 11:08:38 AM EDT
[#1]
Not sure why the
12k isn't too out of line for a fast prime like that. My 400 f/2.8 was ~10k brand new. They are very, very worth it. |
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Posted: 7/2/2018 12:00:19 PM EDT
[#2]
Quote HistoryQuoted:
Not sure why the
12k isn't too out of line for a fast prime like that. My 400 f/2.8 was ~10k brand new. They are very, very worth it. Working in manufacturing my whole career, I'd love to tour a lens factory. |
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Posted: 7/2/2018 1:28:10 PM EDT
[#3]
Quote HistoryQuoted:
I'll go be poor somewhere else lol Working in manufacturing my whole career, I'd love to tour a lens factory. BTW: They are only going to show you only a very small portion of their manufacturing processes, there are lots of proprietary stuff behind the scenes. Unlike the mistakes in US in the 70s & 80s where they gave Japanese engineers unfettered access to US manufacturing. |
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Posted: 7/2/2018 7:28:15 PM EDT
[#4]
Quote HistoryQuoted:
Google "tour Nikon lens factory". Several popped up, you can tour the Sigma & Fuji factories on how they make lenses and bodies. BTW: They are only going to show you only a very small portion of their manufacturing processes, there are lots of proprietary stuff behind the scenes. Unlike the mistakes in US in the 70s & 80s where they gave Japanese engineers unfettered access to US manufacturing. Pretty cool ETA: Here.  Canon Lens Production 1  Canon Lens Production 2  Canon Lens Production 3 |
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Posted: 7/2/2018 7:33:07 PM EDT
[#5]
12K Is not too out of line. I would love one. But honestly I would rather see them come out with a 600 in F4 or even an F5. 400 is a bit short for a lot of what I do, but the speed would be nice. |
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Posted: 7/2/2018 7:54:27 PM EDT
[#6]
Quote HistoryQuoted:
The videos are older, but look for the Canon lens manufacturing video. They start at the glass manufacturing process and go through the ginding and polishing all the way up the the final product. Pretty cool ETA: Here.  https://www.youtube.com/watch?v=MKNFW0YwDYw
https://www.youtube.com/watch?v=qzpt49qq6v4
https://www.youtube.com/watch?v=6bQ3-DWh-rAQuote HistoryQuoted:
Quoted:
Google "tour Nikon lens factory". Several popped up, you can tour the Sigma & Fuji factories on how they make lenses and bodies. BTW: They are only going to show you only a very small portion of their manufacturing processes, there are lots of proprietary stuff behind the scenes. Unlike the mistakes in US in the 70s & 80s where they gave Japanese engineers unfettered access to US manufacturing. Pretty cool ETA: Here. https://www.youtube.com/watch?v=MKNFW0YwDYw
https://www.youtube.com/watch?v=qzpt49qq6v4
https://www.youtube.com/watch?v=6bQ3-DWh-rA |
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Posted: 7/2/2018 11:43:04 PM EDT
[#7]
After seeing all the youtube videos on this lens the bokeh seems weird to me.
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Posted: 7/2/2018 11:52:59 PM EDT
[#8]
In my line of work, TV/film, $20k to $40k is the reality for high end glass.
Before HD in the late 90s a SD zoom video lens would easily top $14k. |
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Posted: 7/3/2018 12:04:18 AM EDT
[#9]
Quote HistoryQuoted:
In my line of work, TV/film, $20k to $40k is the reality for high end glass. Before HD in the late 90s a SD zoom video lens would easily top $14k. |
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Posted: 7/3/2018 10:58:32 AM EDT
[#10]
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Posted: 7/3/2018 7:06:53 PM EDT
[#11]
Quote HistoryThat's one thing cinema lenses get right. I prefer Tstops over Fstops.
They seem to be a bit more reliable and consistent. |
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Posted: 7/4/2018 7:43:00 AM EDT
[#12]
Quote HistoryQuoted:
That's one thing cinema lenses get right. I prefer Tstops over Fstops. They seem to be a bit more reliable and consistent. Quote HistoryQuoted:
They seem to be a bit more reliable and consistent. |
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Posted: 7/4/2018 2:35:24 PM EDT
[#13]
Quote HistoryQuoted:
F stops are what the lens should do. T stops are measured and calibrated for that light volume. At least that’s my understanding of it. So like buying a harbor freight caliper vs a fancy machinist one. Quote HistoryQuoted:
Quoted:
They seem to be a bit more reliable and consistent. T-stops are Transmission Stops, as in the actual amount of light that is transmitted through the glass, taking in consideration the light absorbed in the glass. F-Stops are theoretical or mathematical stops with no consideration for light loss due to the glass. No glass allows 100% transmission. |
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