Trouble getting sharp images with X-T20 + XF 27mm WR (focus & recompose)

yokou

Well-known member
Messages
160
Reaction score
65
Hi,
I'm having trouble getting sharp pictures with my Fuji X-T20 and the XF 27mm f/2.8 WR. I took around 15 photos of birds, but only one ended up properly in focus. I'm using the focus-and-recompose method because I usually shoot one-handed and have disabled the touchscreen to avoid accidental touches.

Here’s one of the better results (first photo, focus on the first bird), and one that I find soft (second photo, focus on the first bird).
I prefocus on the subject, recompose, then fully press the shutter.
Settings were:
  • Auto ISO (limited to 6400)
  • Shutter speed set above 1/500s
  • Auto aperture (f/2.8 for those 2 shots)
    The birds weren’t moving very fast, so motion blur is unlikely.
Light wasn’t great that day, and I’m not happy with the artistic result either — but my main concern is the sharpness.

Would you have any advice?
Thanks!





d9405df5befd4384b21a9d0445bbb089.jpg





c5819600e9d34a449e62a660330fb135.jpg
 
Hi,
I'm having trouble getting sharp pictures with my Fuji X-T20 and the XF 27mm f/2.8 WR. I took around 15 photos of birds, but only one ended up properly in focus. I'm using the focus-and-recompose method because I usually shoot one-handed and have disabled the touchscreen to avoid accidental touches.

Here’s one of the better results (first photo, focus on the first bird), and one that I find soft (second photo, focus on the first bird).
I prefocus on the subject, recompose, then fully press the shutter.
Settings were:
  • Auto ISO (limited to 6400)
  • Shutter speed set above 1/500s
  • Auto aperture (f/2.8 for those 2 shots)
    The birds weren’t moving very fast, so motion blur is unlikely.
Light wasn’t great that day, and I’m not happy with the artistic result either — but my main concern is the sharpness.

Would you have any advice?
Thanks!

d9405df5befd4384b21a9d0445bbb089.jpg

c5819600e9d34a449e62a660330fb135.jpg
Don’t focus and recompose, Use AF-S single point, move the AF box to the desired focus point and full-press the shutter button for the best results. You can also try AF-C Wide Tracking - lock focus on the subject and recompose, this often works “OK”, but it isn’t always perfectly reliable with the X-T20.
 
Couple of suggestions. Shoot in manual for aperture and shutter speed and auto ISO. Your images are underexposed, if you had let the ISO float they wouldn't have been.

Secondly, f2.8 has a short depth of field, what's in and out of focus. In your first photo looked at in full screen, the first bird in almost in sharp focus, the others not in focus as it should be with an f2.8. It's difficult for me to say much more as I don't know what you were using as your primary focusing point.

To get everything in focus, I would have shot at f8 instead of f2.8.
 
Couple of suggestions. Shoot in manual for aperture and shutter speed and auto ISO. Your images are underexposed, if you had let the ISO float they wouldn't have been.

Secondly, f2.8 has a short depth of field, what's in and out of focus. In your first photo looked at in full screen, the first bird in almost in sharp focus, the others not in focus as it should be with an f2.8. It's difficult for me to say much more as I don't know what you were using as your primary focusing point.

To get everything in focus, I would have shot at f8 instead of f2.8.
Thanks for your answer.

I was in autoISO with a maximum of 6400.

My intention was to have the first bird in focus, so I pre-focused on it and then recomposed. In the first picture, it’s almost sharp; in the second, it’s noticeably soft.
 
Couple of suggestions. Shoot in manual for aperture and shutter speed and auto ISO. Your images are underexposed, if you had let the ISO float they wouldn't have been.

Secondly, f2.8 has a short depth of field, what's in and out of focus. In your first photo looked at in full screen, the first bird in almost in sharp focus, the others not in focus as it should be with an f2.8. It's difficult for me to say much more as I don't know what you were using as your primary focusing point.

To get everything in focus, I would have shot at f8 instead of f2.8.
Thanks for your answer.

I was in autoISO with a maximum of 6400.

My intention was to have the first bird in focus, so I pre-focused on it and then recomposed. In the first picture, it’s almost sharp; in the second, it’s noticeably soft.
Focus and recompose isn’t an accurate method for focusing critically, especially at wide apertures.
 
Don’t focus and recompose, Use AF-S single point, move the AF box to the desired focus point and full-press the shutter button for the best results. You can also try AF-C Wide Tracking - lock focus on the subject and recompose, this often works “OK”, but it isn’t always perfectly reliable with the X-T20.
Thanks for you answer, I will try this.
 
I use that combination frequently myself, also using focus and recompose. and I would suggest stopping down to at least f/4 to get better sharpness with this lens and also a more forgiving depth of field for this technique . F/5.6 might be better, way down to f/8 or so. My particular copy is especially good at f/4 and f/5.6. The 27 is "sharp wide open" by pancake lens standards, but it's at its best stopped down.

I find I can hand hold this setup all day at 1/60 in good light and would find 1/125 perfectly adequate for most slow moving or static subjects. This would leave you plenty of room for a smaller aperture. If you need the fast shutter for other reasons (no problem with that), then I would sacrifice ISO before shooting wide open in situations like this.

--
Instagram: @yardcoyote
 
Last edited:
Looking at the grass next to the beack I suspect that the head looks soft becaus of te bird movement rather than jut DOF . yes , I see that you are on 1/500 ....



1ed2a6cd9e0740a7b61d006619e95a2c.jpg
 
  • Like
Reactions: rsn
Looking at the grass next to the beack I suspect that the head looks soft becaus of te bird movement rather than jut DOF . yes , I see that you are on 1/500 ....
Is 1/500s too slow in this situation? Would a faster shutter speed have helped with sharpness?
 
Is 1/500s too slow in this situation? Would a faster shutter speed have helped with sharpness?
When I looked at your EXIF data, I noted the 1/500 and thought that would be okay. However I am the self appointed King of Soft Photos and almost all my mistakes have been with shutter speed. Now when I am in doubt, I slap on another 1000th of a second, so in your case 1/1500, again letting the ISO float.

I do know your photos are underexposed so I was surprised when you said the camera was set to auto ISO. Something isn't right.
 
Looking at the grass next to the beack I suspect that the head looks soft becaus of te bird movement rather than jut DOF . yes , I see that you are on 1/500 ....
Is 1/500s too slow in this situation? Would a faster shutter speed have helped with sharpness?
I don't know for sure but I cannot see another reason for that "soft" head. I have had photos of birds with the body sharp but a soft eye /beack area taken at even higher speeds in a similar situation to yours.
 
I downloaded your photo, and examined it in FastRawViewer. That viewer is designed for raw viewing and culling, but works with jpgs too.

Here's the photo with areas of sharp, fine detail in red. That zone of focus is really shallow! (Click the "original size" view.)



88787efd0d88477dbc0dbd79825ccb2e.jpg
 

Attachments

  • 2154e0e57fe246e58e6b3954c2b568c4.jpg
    2154e0e57fe246e58e6b3954c2b568c4.jpg
    173.4 KB · Views: 0
Last edited:
I downloaded your photo, and examined it in FastRawViewer. That viewer is designed for raw viewing and culling, but works with jpgs too.

Here's the photo with areas of sharp, fine detail in red. That zone of focus is really shallow! (Click the "original size" view.)

88787efd0d88477dbc0dbd79825ccb2e.jpg
and that confirms what I already posted. The head of the duck is within the DOF but blurred because of movement.
 
Last edited:
I'm still trying to figure out why your images are so dark using auto ISO. Are you using intentionally or unintentionally single point metering?
 
I downloaded your photo, and examined it in FastRawViewer. That viewer is designed for raw viewing and culling, but works with jpgs too.

Here's the photo with areas of sharp, fine detail in red. That zone of focus is really shallow! (Click the "original size" view.)
Thanks, that's interesting.
 
I'm still trying to figure out why your images are so dark using auto ISO. Are you using intentionally or unintentionally single point metering?
I wasn’t using single point metering — I had the MULTI metering mode enabled.

I was also using the Acros film simulation.

I opened the RAW file with Darktable and exported it without making any adjustments. Here is the result.

352790e8e0aa45bd943ec8a04eed822d.jpg
 
Last edited:
I'm still trying to figure out why your images are so dark using auto ISO. Are you using intentionally or unintentionally single point metering?
I wasn’t using single point metering — I had the MULTI metering mode enabled.

I was also using the Acros film simulation.

I opened the RAW file with Darktable and exported it without making any adjustments. Here is the result.

352790e8e0aa45bd943ec8a04eed822d.jpg
This is a situation where some positive exposure compensation was probably a good idea - the birds are being rendered as middle grey, as you might expect. Also Darktable doesn't seem to be applying any lens corrections - which are significant for a pancake lens wide open at f/2.8, and which will contribute to the darker than normal result.

Here's a quick tweak in Lightroom with the heavy vignetting corrected and some contrast tweaks etc. This like what I'd expect to see from the XF 27 wide open with the focus off a tad - looks fine to me. Note: depth of field is significantly reduced when shooting at close range - put the AF box on the head in AF-S single point mode at full-press the shutter button for perfect focus or stop down some and hope the additional DOF spreads the area of acceptable focus around enough.

4b03a8bd374c4e2d986541a0add839a8.jpg
 
Last edited:
ACROS - black and white sim - is best used with dramatic contrasting light. When you get a scene in terms of light and tone that is the same throughout, the black and white image won't have any punch and will appear "bland."

Here are some good examples of strong contrasting light:

 
I downloaded your photo, and examined it in FastRawViewer. That viewer is designed for raw viewing and culling, but works with jpgs too.

Here's the photo with areas of sharp, fine detail in red. That zone of focus is really shallow! (Click the "original size" view.)

88787efd0d88477dbc0dbd79825ccb2e.jpg
and that confirms what I already posted. The head of the duck is within the DOF but blurred because of movement.
This is image #1. The crop you posted is from image #2 and it shows a sharp beak, a sharp neck and the top of the head which is blurry because it sticks out of DoF. I'm struggling to see any motion blur in either image #1 or image #2.

DoF, on the other hand, even under normal viewing conditions for an APS-C shot taken from 1m away using 27mm, f/2.8 is only 14 cm. 7 cm if you pixel peep. This is what the red highlights shows.
 
Last edited:
Well, maybe Jthomas will do his test with the other photo too...
 

Keyboard shortcuts

Back
Top