Pls help on f1.4 50mm lens. photo quality not good as seen.


dteoyk

New Member
Apr 26, 2012
24
0
0
#1
Hi,

recently, i bought a canon F1.4 50mm. Me using canon 600D

I have issued on the sharpness.

Same object flower. Distance 1 aprox. 1 meter away. AV mode . ISO 100

My photos are in SkyDrive

First photo
I tried on F1.4. Speed 1/1000. Unfortuately not sharp




Second photo
I tired F2 . Speed 1/500 . still not sharp



Third photo
F2.8 . Speed 1 / 250 . Finally sharp.




My question is , is there a problem with me / my camera 600D not compact with F1.4 lens / or the lens has problem.
Thanks.

Pls advise
 

Rashkae

Senior Member
Nov 28, 2005
19,105
12
0
#3
Are you sure it was 1m away? Looks to have been closer. Remember, the 50mm f/1.4 has a minimum focusing distance of 45cm.

For your shots though, it looks like you would benefit from using an actual macro lens. Do you have any filters, etc on the lens?
 

dteoyk

New Member
Apr 26, 2012
24
0
0
#5
hi, thanks for the reply. back from dinner. yes. indeed about 1 meter or more. i m sure. i even try taking signboard with wording. i compared and found the sharpness sucks. yes, got a regular uv lens.
 

dteoyk

New Member
Apr 26, 2012
24
0
0
#6
not, hand held. just took this late afternoon. as u can see the timing on the properties. occassinally there is a breeze. however, the time i took, no wind. thks.
 

dteoyk

New Member
Apr 26, 2012
24
0
0
#7
the box said: ultrasonic EF 50mm f/1.4 USM
 

Rashkae

Senior Member
Nov 28, 2005
19,105
12
0
#8
Those flowers are pretty small. Looks a lot closer than 1m. Also, try without the filter.
 

dteoyk

New Member
Apr 26, 2012
24
0
0
#9
ok, will try that. thks. btw, i just uploaded 3 more photos. i took a signboard. using f/1.4, f/2, f/2.8. i found that large wording is sharper on 2.8. distance is about 2m away. pls advise.
 

dteoyk

New Member
Apr 26, 2012
24
0
0
#10
same link to the skydrive. thks
 

dteoyk

New Member
Apr 26, 2012
24
0
0
#12
Er.. the photos indeed looks like closer to 1m is becos i crops the picture. sorry for the misconception i just upload the original size.
 

Rashkae

Senior Member
Nov 28, 2005
19,105
12
0
#13
Er.. the photos indeed looks like closer to 1m is becos i crops the picture. sorry for the misconception i just upload the original size.
Ah. Then it looks about right. You have a very narrow DOF on a lens that only really gets sharp from f/2.8 onwards.
 

dteoyk

New Member
Apr 26, 2012
24
0
0
#14
:( thats suck indeed. spending $$ buying a f/1.4 and could only use 2.8.. :( .anyway, i will try to take some shots w/o the filter. or is it becos of my camera not compactable to the lens ? i saw ppl uisng semi pro 60D. looks good on them. thank you
 

Rashkae

Senior Member
Nov 28, 2005
19,105
12
0
#15
:( thats suck indeed. spending $$ buying a f/1.4 and could only use 2.8.. :( .anyway, i will try to take some shots w/o the filter. or is it becos of my camera not compactable to the lens ? i saw ppl uisng semi pro 60D. looks good on them. thank you
No, it is not your camera. It's an old lens. Plus, the people using it on other cameras don't just shoot tiny flowers, and then they also apply post processing like sharpening, etc. If you "saw people" using it on a 60D and you think you have an issue with your camera, you need to test it *properly*. Use a tripod, tame target, etc. If necessary just rent a 60D and another 50mm f/1.4 then you can compare and contrast.
 

dteoyk

New Member
Apr 26, 2012
24
0
0
#16
thanks. yes, i dont usually shoot on tiny flower or i dun really do it. i was testing out the effect. i bought the lens two wks ago at funan it mall. brand new. i did my first try one on some outing shoots with people. dim corridor and outdoor shots. that's when i discovered having problem with sharpness. just yesterday, did another outing shoot with ppl at Chinese Garden. distance was like 2,3, 4 meter away, the facial was not sharp. i gave up and chg to regular 18-55mm. it turn out that the photos are sharper ! that's the reason why i went out today to a nearby little garden to try out again. to make sure it is not my mishandling that the pic is not sharp. and yes, i will heed your advise.
 

Hinata76

Senior Member
Apr 15, 2009
2,126
0
36
Singapore
www.flickr.com
#17
think i saw ur group too...heh..i was there...im one guy wearing berms and short sleeve shirt..lone ranger here ..
 

Rashkae

Senior Member
Nov 28, 2005
19,105
12
0
#18
thanks. yes, i dont usually shoot on tiny flower or i dun really do it. i was testing out the effect. i bought the lens two wks ago at funan it mall. brand new. i did my first try one on some outing shoots with people. dim corridor and outdoor shots. that's when i discovered having problem with sharpness. just yesterday, did another outing shoot with ppl at Chinese Garden. distance was like 2,3, 4 meter away, the facial was not sharp. i gave up and chg to regular 18-55mm. it turn out that the photos are sharper ! that's the reason why i went out today to a nearby little garden to try out again. to make sure it is not my mishandling that the pic is not sharp. and yes, i will heed your advise.
The 18-55 has a much smaller aperture, thus much deeper depth of field, making things look "sharper". As for your "outing shoots", do consider that the slightest shift in distance after the lens has focused can bring your target out of focus when shooting at large apertures.

Oh, and by "old lens" I mean it's an old design. A lot of the older Canon lenses (like even the 24-70 L) are actually quite soft wide open. That's why many people like using the sigma 50mm as well.
 

Shizuma

Senior Member
Mar 19, 2012
2,557
25
0
#19
want to swap for a sharp 50 mm of mine ?

hee. 50mm 1.8 is best bang for buck.

if you really want a sharp image for prime - stop down to sweet spot. you may seriously wish to consider acquiring one 50mm f1.8, too (although i am half serious about swapping, too)
 

ricohflex

Senior Member
Feb 24, 2005
3,353
8
38
sing
#20
Focus the wrong place and then blame the lens. When stopped down the increased depth of field covered the focusing error.
 

Top Bottom