Soft pictures with 45 f1.2 PRO

lucanus81

Mu-43 Regular
Joined
Mar 2, 2019
Messages
38
Hello guys,

just wanted to provide an update. I think the shutter speed was really part of the problem.
Today I repeated my test, this time I had a minimum SS of 1/400-500s (aperture was between f1.8-f.2.8) and I must say that the images look much better (always with the 45 f1.2)
However I must say that still AF-S produces better image quality.
Honestly at this point I am wondering whether I should send my camera to Olympus to have it checked.

I would like to thank you all for the previous help you gave me. I really appreciated it.
 

ijm5012

Mu-43 Legend
Joined
Oct 2, 2013
Messages
7,960
Location
Pittsburgh, PA
Real Name
Ian
Hello guys,

just wanted to provide an update. I think the shutter speed was really part of the problem.
Today I repeated my test, this time I had a minimum SS of 1/400-500s (aperture was between f1.8-f.2.8) and I must say that the images look much better (always with the 45 f1.2)
However I must say that still AF-S produces better image quality.
Honestly at this point I am wondering whether I should send my camera to Olympus to have it checked.

I would like to thank you all for the previous help you gave me. I really appreciated it.
Any lens is going to be sharp when stopped down 1+ stops. The 45/1.2 PRO should be sharp wide-open.

If you're seeing focusing accuracy issues when shooting with AF-C, then follow the steps I provided in my post back on page 1 of this thread. You likely just need to focus tune the lens. It's not difficult to do.
 

relic

Mu-43 All-Pro
Joined
Oct 21, 2010
Messages
1,175
Location
North Carolina, USA
Hello guys,

just wanted to provide an update. I think the shutter speed was really part of the problem.
Today I repeated my test, this time I had a minimum SS of 1/400-500s (aperture was between f1.8-f.2.8) and I must say that the images look much better (always with the 45 f1.2)
However I must say that still AF-S produces better image quality.
Honestly at this point I am wondering whether I should send my camera to Olympus to have it checked.

I would like to thank you all for the previous help you gave me. I really appreciated it.
https://www.imaging-resource.com/lenses/olympus/45mm-f1.2-pro-m.zuiko-digital-ed/review/
 

BPCS

Mu-43 Regular
Joined
Oct 15, 2017
Messages
79
Having read all your settings, which seem good, have you got FW 3.1 as CAF was much improved to the point it is now my default AF mode. Having said that, at f1.2 and the type of subject and distance your example shows, even FW 3.1 and CAF can be a lottery. You say drive mode L, so in your burst, are any shots tack sharp? I would use your settings and expect about half to be tack sharp. Other than that, focus could need calibrating via the menu... up to + or - 3 is not uncommon and can make all the difference. Also a filter can not only throw focus out but introduce softness as well... especially with larger lens diameter teles. Do some tests of a stationary subject from -3 to +3 using the lens AF adjust menu and CAF (it has no affect on SAF) and see if an improvement occurs. Do about half second bursts, so about 8 frames, and see which AF adjust setting produces most tack sharp results.
 

lucanus81

Mu-43 Regular
Joined
Mar 2, 2019
Messages
38
Having read all your settings, which seem good, have you got FW 3.1 as CAF was much improved to the point it is now my default AF mode. Having said that, at f1.2 and the type of subject and distance your example shows, even FW 3.1 and CAF can be a lottery. You say drive mode L, so in your burst, are any shots tack sharp? I would use your settings and expect about half to be tack sharp. Other than that, focus could need calibrating via the menu... up to + or - 3 is not uncommon and can make all the difference. Also a filter can not only throw focus out but introduce softness as well... especially with larger lens diameter teles. Do some tests of a stationary subject from -3 to +3 using the lens AF adjust menu and CAF (it has no affect on SAF) and see if an improvement occurs. Do about half second bursts, so about 8 frames, and see which AF adjust setting produces most tack sharp results.
I did a new test where this time I was using an higher f-stop (f2.2-2.5) and the SS was at least at 1/500 with a decent distance (at least 3 meters) from my test subject. The results? They all show either front-focusing or back-focusing (this is what I have sent to Olympus: https://drive.google.com/drive/folders/1HcKwx4cyAceefsDJGya0lVP8m1LpTCJ6

I have engaged Olympus's tech support. Let's see what will happen. All my gears have only 6 months, so I'd prefer to have them (Olympus) fix/set the lenses for me.
 

lucanus81

Mu-43 Regular
Joined
Mar 2, 2019
Messages
38
Hi, Are you still using C-AF?
Did you do the focus tuning?
Hi,
YES. Still using AF-C (but from time to time I change it to AF-S). To be honest yes, I have tried but I really couldn’t see any difference (I have changed up to +/-3): maybe I did something wrong with my test? I don’t know. Tomorrow I have to go to the camera store where I bought the camera. They offered to help me checking my equipment.
 

Growltiger

Mu-43 All-Pro
Joined
Mar 26, 2014
Messages
1,935
Location
UK
Your testing isn't adequate to decide much.
If you want to test the lens, put the camera on a tripod and photograph a wall. That will show if the focus is off. You say you get both front and back focussing, this is about the subject moving, not a problem with the equipment.
The lens you have is a specialist lens and the very wide aperture requires a controlled environment and/or a skilled user, especially for moving subjects.
 
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