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Thread started 19 Apr 2007 (Thursday) 21:47
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Canon EF 50mm f/1.2L USM (2)

 
jwcdds
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Apr 28, 2015 00:12 |  #991

EchoShotz wrote in post #17535291 (external link)
I was toying around outside trying to lock focus on my friend riding his skateboard and shooting at 2.8 on AI Servo, but I really noticed no issues maintaining focus and getting a pretty good hit rate.

Focus shift is mostly noticeable on when you're shooting certain aperture range at close to minimum focal distance (subject is very close to camera). Otherwise, it's really not an issue at all.


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InfiniteDivide
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Post edited over 2 years ago by InfiniteDivide. (2 edits in all)
     
Apr 28, 2015 00:28 |  #992

Wide open


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fordmondeo
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Apr 28, 2015 00:45 as a reply to  @ InfiniteDivide's post |  #993

Yes, mine works fine wide open.

This explains the phenomenon better than I can.

https://photographylif​e.com/what-is-focus-shift (external link)


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InfiniteDivide
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Post edited over 2 years ago by InfiniteDivide. (2 edits in all)
     
Apr 28, 2015 05:19 |  #994

I almost always shoot in AV mode to maintain a consistent aperture.
I also set my minimum shutter speed to 1/60 with the 50L.
I also use an ND8 filter that lives on my 50L 95% of the time, from morning to dust.
Keeping the aperture fixed and a minimum SS of 1/60 or more to stop motion.
I let the ISO vary up to 6400 max. Within those setting my 50L and others perform great.

Even during magic hour, the ISO on the 6D is almost noise free up to 1600
If I go out to shoot in the evening and night, I swap off the ND filter.

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fordmondeo
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Apr 28, 2015 05:47 |  #995

InfiniteDivide wrote in post #17535489 (external link)
I almost always shoot in AV mode to maintain a consistent aperture.
I also set my minimum shutter speed to 1/60 with the 50L.
I also use an ND8 filter that lives on my 50L 95% of the time, from morning to dust.
Keeping the aperture fixed and a minimum SS of 1/60 or more to stop motion.
I let the ISO vary up to 6400 max. Within those setting my 50L and others preform greatly.

Even during magic hour, the ISO on the 6D is almost noise free up to 1600
If I go out to shoot in the evening and night, I swap off the ND filter.

In all honesty, I'm taking it back to the store and getting the 24-70 2.8 L v2.
And yes, the low sensor noise of the 6D is quite astonishing.


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Tony_Stark
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Apr 28, 2015 13:01 |  #996

Still love using my 50L for automotive work.

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Apr 28, 2015 13:45 |  #997

Great set George


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xpfloyd
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Apr 29, 2015 07:59 |  #998

I think ive cured my issues. I re-ran the magic lantern automated dottune about 10 times using a better focus chart that I printed from the net and also increased the number of passes per run to the maximum of 10. I now have a MFA of +1. (Originally I got -3 then got +11!!).

Been taking random test shots at various distances and it seems to be performing as it should. There may be some hope yet :-)


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Apr 29, 2015 11:14 |  #999

Post Number 1000  :p

I need this lens so bad... :love:

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xpfloyd
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Apr 29, 2015 15:20 |  #1000

Some more wide open bokehness

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scobols
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Apr 30, 2015 07:45 |  #1001

Nothing too exciting, just some thin DOF and creamy bokeh.

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cali92rs
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Post edited over 3 years ago by cali92rs.
     
Apr 30, 2015 11:10 |  #1002

xpfloyd wrote in post #17537513 (external link)
Some more wide open bokehness

QUOTED IMAGE
IMAGE LINK: https://flic.kr/p/s6uq​4s  (external link) Ellie (external link) by xpfloyd (external link), on Flickr

QUOTED IMAGE
IMAGE LINK: https://flic.kr/p/skLB​q5  (external link) Diego (external link) by xpfloyd (external link), on Flickr

Looks like you nailed focus :)
So now that you think you have it dialed in, is it a keeper?


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xpfloyd
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Post edited over 3 years ago by xpfloyd.
     
Apr 30, 2015 12:21 as a reply to  @ cali92rs's post |  #1003

I think so. I was seriously close to selling and was actually hating the lens but now its set properly I'm really starting to like it. Ill give it a good test period now


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May 01, 2015 14:54 |  #1004

xpfloyd wrote in post #17537513 (external link)
Some more wide open bokehness

QUOTED IMAGE
IMAGE LINK: https://flic.kr/p/s6uq​4s  (external link) Ellie (external link) by xpfloyd (external link), on Flickr

QUOTED IMAGE
IMAGE LINK: https://flic.kr/p/skLB​q5  (external link) Diego (external link) by xpfloyd (external link), on Flickr


How close were you to these cats when shooting?

Nailed the focus, btw.


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xpfloyd
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Post edited over 3 years ago by xpfloyd.
     
May 01, 2015 15:54 |  #1005

p360 wrote in post #17539912 (external link)
How close were you to these cats when shooting?

Nailed the focus, btw.

They are not cropped so quite close, maybe 2 feet?

EDIT - exif says 0.54m for the ginger and white cat and 0.47m for the brown cat so both within 2 feet (0.6m)


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Canon EF 50mm f/1.2L USM (2)
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