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Author Topic: Ken Rockwell reviews canon 50mm f/1.0  (Read 21136 times)

ninjapeps

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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #15 on: November 21, 2013, 08:22:23 PM »
I don't know, I saw those comments about perfect focus and figured the whole thing was a joke.
sanity is for people without imagination

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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #15 on: November 21, 2013, 08:22:23 PM »

BL

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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #16 on: November 21, 2013, 08:50:21 PM »
people, pls stop posting links and giving him this sort of publicity.  all his misinformation creates a great buzz for his site to generate traffic and revenue

it's why he can afford to not work, stay at home all day and take his kids to lego land every weekend
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Menace

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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #17 on: November 21, 2013, 09:26:01 PM »
You guys are all jealous of Ken's awesomeness  :P ... people like him are one in a billion ;D

You mean there are another six people like him in the world?
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candc

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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #18 on: November 21, 2013, 09:58:55 PM »
he gets under my skin sometimes but he can write a good article, his piece on the "leica man" is a great read. the world would be a duller place without KR

http://www.kenrockwell.com/leica/leica-man.htm

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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #19 on: November 22, 2013, 02:23:03 AM »
 I like my 50 mm f/1.0 and my 50 mm f/1.2 lens.

Rienzphotoz

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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #20 on: November 22, 2013, 03:26:01 AM »
You guys are all jealous of Ken's awesomeness  :P ... people like him are one in a billion ;D

You mean there are another six people like him in the world?
To our good fortune, yes there are at least six more of them in the world ... a few of them frequent CR for DR ;D
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Viggo

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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #21 on: November 22, 2013, 03:54:52 AM »
KR aside, that lens looks EPIC and it is.. The ONLY thing stopping me from buying one is that it is too expensive to own and use when it can't be fixed if broken, and that is a shame.

And if Canon made a new one, being the same size and even being heavier than the 85 L at 4500 usd , I would stop writing this sentence and place the order.
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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #21 on: November 22, 2013, 03:54:52 AM »

infared

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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #22 on: November 22, 2013, 04:41:43 AM »
 :) ;) :D ;D >:( :( :o I have to admit...those are some real "masterpiece" images KR uses to portray and review such a "masterpiece" lens.  8) ??? ::) :P :-[ :-X :-\ :-* :'(

Didn't know that the lens existed...but I know less about it now. :-0
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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #23 on: November 22, 2013, 06:41:49 AM »
And if Canon made a new one, being the same size and even being heavier than the 85 L at 4500 usd , I would stop writing this sentence and place the order.

From a marketing perspective I don't quite understand Canon not updating or releasing a f1.0 lens - given all the enthusiasts with deep pockets out there they'll sell tons of it no matter the price.

Most likely Canon feels that using digital sensors and esp. the upcoming high mp versions the light gain of f1.4+ is too little since today's cameras can only harvest a small part of it and the manufacturer has to cheat raising ISO. Last not least as argued and the usability of such a thin dof is extremely small, and again the larger the sensor resolution gets people looking @100% crop are bound to complain.





ajfotofilmagem

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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #24 on: November 22, 2013, 07:28:24 AM »
And if Canon made a new one, being the same size and even being heavier than the 85 L at 4500 usd , I would stop writing this sentence and place the order.

From a marketing perspective I don't quite understand Canon not updating or releasing a f1.0 lens - given all the enthusiasts with deep pockets out there they'll sell tons of it no matter the price.

Most likely Canon feels that using digital sensors and esp. the upcoming high mp versions the light gain of f1.4+ is too little since today's cameras can only harvest a small part of it and the manufacturer has to cheat raising ISO. Last not least as argued and the usability of such a thin dof is extremely small, and again the larger the sensor resolution gets people looking @100% crop are bound to complain.
I think it not makes sense to resurrect a F1.0 lens that has few benefits for digital cameras. Poor sharpness in the maximum opening, and significant loss of light reaching the sensor, but it does not penetrate due to the very steep angle (ISO is pushed secretly to compensate). It makes more sense a new version of the F1.2 model with enhanced sharpness, and focus-shift corrected.
« Last Edit: November 22, 2013, 07:30:27 AM by ajfotofilmagem »

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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #25 on: November 22, 2013, 07:37:48 AM »
Yes a unique lens. But there have been others too that have come and gone...500mm f/8 mirror lens anyone?

At least the 50mm f/1.0 was practical/usable.  Have wondered why canon have not released a new version given leica has a faster version at f/0.95 and they must be still selling it.

I have a soft spot for interesting lenses that might produce interesting images.

P.
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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #26 on: November 22, 2013, 08:15:07 AM »
Light gathering with f1.0 vs f1.2 isn't important to me, it's the dof and feel and look. And I wouldn't want the optical qualities of the old one, really, I would want a 2013 version of a 50 f1.0. If the made it the same size and weight as the 70-200 and have it with Otus quality, I would still buy it. Seeing images from the 200 f1.8 vs 200 f2 is also the same sort of different look a smaller change in aperture can have.
« Last Edit: November 22, 2013, 08:17:14 AM by Viggo »
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Marsu42

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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #27 on: November 22, 2013, 08:20:40 AM »
Light gathering with f1.0 vs f1.2 isn't important to me, it's the dof.

My suspicion is that some people might not be precise when choosing terms for what they want - personally, I want strong background blur (subject isolation, no background distraction) & nice bokeh (interesting look and highlights). What I usually do not want is thin dof because at larger print/view sizes most of the subject is out of focus unless it's 90 degrees angle to the lens.

Now thin dof and strong blur are interdependent, but you can also get a strong blur by changing the focal length and camera-subject-background relation w/o the negative side effects of thin dof, which is what I'm usually trying to do... it really depends if you're a fan of the "only one eye in focus" shot type.

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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #27 on: November 22, 2013, 08:20:40 AM »

noisejammer

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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #28 on: November 22, 2013, 08:36:50 AM »
Ah - another insightful rant from Clueless Kenny, the uber math whiz.
I'm quite curious how f/1.0 can be 1/2 to 2/3 stop faster than f/1.2... what causes it to vary? Phase of the moon?

Comparing the entrance pupils, the ratio must be (1.2)^2 = 1.44. In terms of stops that's 0.52. Ok, so it's half a stop faster than f/1.2 ....

But it's only half a stop better if the camera detects the light. Other's have commented (and my tests have confirmed) that my 1D4 and 5D2 cannot actually see light from a cone that's faster than f/1.6. This does vary from lens to lens - some modern lenses are telecentric so that all the light gets to the photodiode. However, the 50/1.0 comes from the film era and is not telecentric. Ergo, NO fast aperture, NO narrow DoF and NO benefit.

Well, I suppose your wallet would be lighter, even if your camera bag wasn't.

Marsu42

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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #29 on: November 22, 2013, 08:46:05 AM »
I'm quite curious how f/1.0 can be 1/2 to 2/3 stop faster than f/1.2... what causes it to vary? Phase of the moon?

No :-), it's sensor resolution (pixel density) - digital sensors can harvest only part of the lens coming from lenses with very big open aperture, that's why manufacturers have to silently "cheat" to gain the expected light gain by silently raising iso... it's not really cheating because there are some papers about it, but they don't spread around the fact to willingly either :-)

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Re: Ken Rockwell reviews canon 50mm f/1.0
« Reply #29 on: November 22, 2013, 08:46:05 AM »