85mm f 1.2 MKII not sharp
/forum/topic/679651/1

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pawlowski6132
Registered: Mar 22, 2008
Total Posts: 1739
Country: United States

2.0



Gochugogi
Registered: Jun 25, 2003
Total Posts: 7099
Country: United States

Nuttin' like ah clean stylus!



pawlowski6132
Registered: Mar 22, 2008
Total Posts: 1739
Country: United States

Gochugogi wrote:
Nuttin' like ah clean stylus!



Oh man, you got that right!!



mordicai
Registered: Oct 11, 2007
Total Posts: 108
Country: United States

PLEASE, my lens is SHARP!!! I have it all together now and my lens is sharp as a tack at 1.2. Time for lthis post to ens




PLEASE I am now getting sharp results with my lens at 1.2. Thank you for your replies.

















Yakim Peled
Registered: Nov 18, 2004
Total Posts: 15295
Country: Israel

mordicai wrote:
PLEASE, my lens is SHARP!!! I have it all together now and my lens is sharp as a tack at 1.2. Time for lthis post to ens

PLEASE I am now getting sharp results with my lens at 1.2. Thank you for your replies.


That's great. What was the problem earlier?

Happy shooting,
Yakim.



Mike1
Registered: Feb 27, 2005
Total Posts: 493
Country: Argentina

I'm guessing user error by handholding & shooting with crazy shallow DOF, just like the many that had the same problem Yakim.



RT v Genugten
Registered: Mar 13, 2007
Total Posts: 2059
Country: Netherlands

Yes,
The 85L is a miraculous lens!



RT.



Yakim Peled
Registered: Nov 18, 2004
Total Posts: 15295
Country: Israel

Mike1 wrote:
I'm guessing user error by handholding & shooting with crazy shallow DOF, just like the many that had the same problem Yakim.




Happy shooting,
Yakim.



mordicai
Registered: Oct 11, 2007
Total Posts: 108
Country: United States

The problem was that I was shooting people in very dark conditions, at 1.2 at too slow a shutter speed. When I took the lens outside everything sharpened up. I was used to shooting my 200 f 2.8 at 1/50 second and getting sharp results. you can't shoot at those speed when using 1.2 because the slightest movement means everything out of focus. I now keep my speeds above 1/300 and preferably at 1/640 or better.



jmvdigital
Registered: Aug 06, 2008
Total Posts: 90
Country: United States

That doesn't make much sense though. How do you get sharp shots at 200mm @ f2.8:1/50s, but unsharp shots at 85mm @ f1.2:1/100(assuming similar lighting)? If anything, the shorter focal length and increase in lens aperture should have REDUCED camera shake.

Am I missing something here? I've always assumed camera shake is camera shake, whether at f8 or f1.2.

PS: Glad you got things working though.



jerrykur
Registered: Feb 15, 2005
Total Posts: 3658
Country: United States

jmvdigital wrote:
That doesn't make much sense though. How do you get sharp shots at 200mm @ f2.8:1/50s, but unsharp shots at 85mm @ f1.2:1/100(assuming similar lighting)? If anything, the shorter focal length and increase in lens aperture should have REDUCED camera shake.

Am I missing something here? I've always assumed camera shake is camera shake, whether at f8 or f1.2.

PS: Glad you got things working though.


Maybe the longer length of the 200 makes it easier to handhold?



EvilZardoz
Registered: Mar 17, 2005
Total Posts: 330
Country: Australia

Some of these samples I've seen are so sharp, I've now cut my fingers and I can't find the first-aid kit.

I've got a similar problem... Focus+recompose doesn't work with this lens, AI SERVO is the key here or to select your AF point. But even when i do the above, I get LOTS of CS and the lens is softer than my pillow.

I'll post some pics a bit later. I find the problem less obvious when there's not much light. Things sharpen up like a razor at f/2.



RT v Genugten
Registered: Mar 13, 2007
Total Posts: 2059
Country: Netherlands

For starters with the 85L, a tripod and a flash, at -1/3 or -2/3 will do miracles at F1.2 and roundabout.

RT.



EvilZardoz
Registered: Mar 17, 2005
Total Posts: 330
Country: Australia

RT v Genugten wrote:
For starters with the 85L, a tripod and a flash, at -1/3 or -2/3 will do miracles at F1.2 and roundabout.


+1 and quoted for truth. Myself and a friend of mine (who incidentally, shoos with a Nikon D3 + 85 1.4) and we both get amazing resuls with this trick. Really balances out the colour but retains ambience. Don't be scared of ISO 1600 either



Yakim Peled
Registered: Nov 18, 2004
Total Posts: 15295
Country: Israel

mordicai wrote:
you can't shoot at those speed when using 1.2 because the slightest movement means everything out of focus.


Hummmmm........

I wonder, why does it sound so familiar?



Happy shooting,
Yakim.



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