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Post by gilbertgoh on Jan 15, 2007 23:57:52 GMT 8
recently going back on the topic of "sharpness"
i recently got the 16-35. i found it soft.
yes even on my 400D where it is a crop of 1.6.
Bro USM.
is it when view at 100% most pic also look blur?
can sample one pic using the 16-35 you have to show me a copy of sharp for this len.
i may want to change it.
thanks a millon.
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Post by evershine on Jan 16, 2007 12:01:39 GMT 8
I find that usually viewing at 100% will not be sharp especially your main subject of focus is not filling up the whole frame. If you reduce the size - for example, from 3600x2400 to 1600x1200, it will be sharper. Also usually you need to sharpen using PS/DPP. All this assuming your focus is right and no handshake. I managed to find one i taken at canon pro shutterbug. I was testing the 16-35. This one is cropped and sharpened. Is your 16-35 new or 2nd hand?  File size: 239258 bytes File date: 2006:09:24 09:44:39 Camera make: Canon Camera model: Canon EOS 400D DIGITAL Date/Time: 2006:09:25 01:15:12 Resolution: 750 x 611 Flash used: Yes (manual) Focal length: 16.0mm (35mm equivalent: 134mm) CCD width: 4.30mm Exposure time: 0.013 s (1/80) Aperture: f/2.8 ISO equiv.: 200 Whitebalance: Auto Exposure: Manual Exposure Mode: Auto bracketing |
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Post by 28degree on Jan 16, 2007 12:28:57 GMT 8
i share the same thoughts also... wonder is it due to: 1) lens 2) my hands shaking hahaa.... when view at 100% is just not sharp...but view at smaller size..is okie.... hmmmmm.... anyone care to englighten me?  |
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ang79
Registered Member 
Posts: 490
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Post by ang79 on Jan 16, 2007 13:29:19 GMT 8
hi guys
saw a thread from USM. i dunno how to transfer here.....sorry...
its 16 - 35 vs 17 -40 one....
from wat i see....it seems that 17 -40 is better in terms of $$$ and sharpness when fully view....
maybe u guys take a look at that thread ?
just my view lah.... pardon me if i am wrong.
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Post by bigu2fan on Jan 16, 2007 16:39:38 GMT 8
Hello!
If sharpness is very very important to you, you can try shooting with good macro lenses. It will probably beat your L zooms. Some have told me macro lenses are sometimes too sharp, and unflattering to models.
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ang79
Registered Member
Posts: 490
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Post by ang79 on Jan 16, 2007 18:11:44 GMT 8
Hello! If sharpness is very very important to you, you can try shooting with good macro lenses. It will probably beat your L zooms. Some have told me macro lenses are sometimes too sharp, and unflattering to models. haha ivan, u r one bigmacrofan ! ;D |
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Post by bigu2fan on Jan 16, 2007 18:44:37 GMT 8
Hello! If sharpness is very very important to you, you can try shooting with good macro lenses. It will probably beat your L zooms. Some have told me macro lenses are sometimes too sharp, and unflattering to models. haha ivan, u r one bigmacrofan ! ;D Aiyah, don't say that lah. Picked up macro only a few weeks only. If I call myself bigmacrofan, the macro masters on this site will beat me up good good LOL. |
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Post by gilbertgoh on Jan 17, 2007 11:53:19 GMT 8
i got it from TCW, shop warrenty lol.
low light i feel it is soft. view small is good.
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ang79
Registered Member
Posts: 490
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Post by ang79 on Jan 17, 2007 14:19:10 GMT 8
haha ivan, u r one bigmacrofan ! ;D Aiyah, don't say that lah. Picked up macro only a few weeks only. If I call myself bigmacrofan, the macro masters on this site will beat me up good good LOL. wont lah... fan doens mean u need to know everything mah. ;D |
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USM
Senior Moderator 
Posts: 1,303
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Post by USM on Jan 17, 2007 23:03:15 GMT 8
Hi Gilbert,
Talking about sharpness. First of all, are you zooming in the photo to 100% via your PC screen? If yes, then it may not be sharp due to pixelation.
My suggestion is that :
1) Mount your camera + EF 16-35mm f2.8L on a tripod
2) Use a cable release
3) Take a shot of a picture contains wording at center and corner at f2.8, 5.6 and f8
4) Download the picture on your PC
5) Do not do any post processing, crop out 100% of the center portion to see whether it is sharp. If it is sharp, then your are ok, else........
There are couple of reasons why the picture is not sharp
1) Camera / Hand Shake
2) Shallow DOF
3) Motion
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Post by gilbertgoh on Jan 18, 2007 2:23:36 GMT 8
thanks USM. after the test it looks good.
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elmz
Registered Member
Posts: 5
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Post by elmz on Feb 14, 2007 16:54:33 GMT 8
I find that usually viewing at 100% will not be sharp especially your main subject of focus is not filling up the whole frame. If you reduce the size - for example, from 3600x2400 to 1600x1200, it will be sharper. Also usually you need to sharpen using PS/DPP. All this assuming your focus is right and no handshake. I managed to find one i taken at canon pro shutterbug. I was testing the 16-35. This one is cropped and sharpened. Is your 16-35 new or 2nd hand? File size: 239258 bytes File date: 2006:09:24 09:44:39 Camera make: Canon Camera model: Canon EOS 400D DIGITAL Date/Time: 2006:09:25 01:15:12 Resolution: 750 x 611 Flash used: Yes (manual) Focal length: 16.0mm (35mm equivalent: 134mm) CCD width: 4.30mm Exposure time: 0.013 s (1/80) Aperture: f/2.8 ISO equiv.: 200 Whitebalance: Auto Exposure: Manual Exposure Mode: Auto bracketing was this taken with tripod...if not... how do you guys manage to get very sharp pictures handheld... im only using cheapos' canon 50mm f/1.8 and sigma 70-300... and found some sharp pics on forums using these lens.... any tips to share... i read also that you need to find the "sweet spot" of your lens...like correct apperture.... in order to get the best sharpness... im scared to read that you will answer me that i need to get "L" lenses to have sharp images  .... thanks.... |
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USM
Senior Moderator
Posts: 1,303
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Post by USM on Feb 14, 2007 23:18:27 GMT 8
was this taken with tripod...if not... how do you guys manage to get very sharp pictures handheld... im only using cheapos' canon 50mm f/1.8 and sigma 70-300... and found some sharp pics on forums using these lens.... any tips to share... i read also that you need to find the "sweet spot" of your lens...like correct apperture.... in order to get the best sharpness... im scared to read that you will answer me that i need to get "L" lenses to have sharp images .... thanks.... Bro, bring along your EF 50mm f1.8 and the Sigma 70-300mm during the Photography Clinic session. We will show you what's happening. |
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Post by evershine on Feb 19, 2007 11:46:49 GMT 8
elmz, if u can go to the photography clinic session. that's the best way to learn.
no i did not use a tripod for that shot. at close range to the subject with sufficient light/brightness, and an external flash light, normally you should get a sharp pic.
Don't rely on P mode or Av mode, try to use Manual.
Post a pic, with exif details..we can discuss further.
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fotojoy
Registered Member
I'm not a pro!
Posts: 125
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Post by fotojoy on Mar 11, 2007 21:54:49 GMT 8
5) Do not do any post processing, crop out 100% of the center portion to see whether it is sharp. If it is sharp, then your are ok, else........ Paiseh .. what is crop out 100% of the center portion? Got crop 90% 80% 10% meh? Please explain.... |
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