Sorry for asking But.. Is my 70-200 F4 L Ok ?? -- Canon Lenses in photography-on-the.net forums

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Sep 09, 2007 11:19 | #1

Got my 70-200 F4 L last week and tbh I am not that impressed by it. I know it may not be the Uber L series lens but none the less I thought I would get better results that I have so far. Seems too soft compared to others I have seen. I have tried to use it in the studio and also outdoors. Below are some images I took to test the lens out. If its buggered then it goes back to Jessops in the morning for an exchange

Test Images with 100% crops:

Focus on the Eye

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100% Crop

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Focus on the center of the door handle

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100% Crop

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Focus on the white blob

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100% Crop

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Focus on her right eye (Our Left)

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http://www.static-thought.com/lenstest/09.jpg

100% Crop
http://www.static-thought.com/lenstest/10.jpg

Exif Data is Intact. Please let me know what you think.

Regards
Chris
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carpenter

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Sep 09, 2007 11:22 | #2

exif? I'm not seeing any problems really. The second on is a bad pic to try gauge your lens on because you focused on something that has 0 detail. (center of door handle) So of course everything behind that would be a bit OOF. 4th one seems ok as well, just not the best lighting.

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crn3371

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Sep 09, 2007 11:57 | #3

They really don't look all that bad, especially if they were all taken handheld. Looking at your exif info, you're really at marginal shutter speeds to get sharp handheld shots.

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StaticThought
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Sep 09, 2007 12:04 | #4

Hey Guys,

They were on a Manfrotto tripod btw - forgot to mention this :lol:

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wimg

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Sep 09, 2007 14:00 | #5

Looks to me like it backfocuses very slightly. Try the focus chart:
http://focustestchart.com/chart.html
Do test on all focal settings on the barrel, there always is a little difference going through the different FLs.

Kind regards, Wim

EOS R & EOS 5 (analog) with a gaggle of primes & 3 zooms, OM-D E-M1 Mk II & Pen-F with 10 primes, 6 zooms, 3 Metabones adapters/speedboosters, and an accessory plague

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wimg

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Sep 09, 2007 14:04 | #6

Just thought of something. You say you have it on a tripod. How do you focus and shoot? You need to use a remote switch, either wired or wireless.

Kind regards, Wim

EOS R & EOS 5 (analog) with a gaggle of primes & 3 zooms, OM-D E-M1 Mk II & Pen-F with 10 primes, 6 zooms, 3 Metabones adapters/speedboosters, and an accessory plague

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Sarel

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Sep 09, 2007 14:08 | #7

Can't really tell without the EXIF...
Please share the info...

Sarel.

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StaticThought
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Sep 09, 2007 14:22 | #8

Hey again,

Shot with a tripod using the shutter release button. Exif is there, you may need to have an exif viewer to see it though.

Thanks for the link. Been looking for that so I can test my lens. Heres the results:

Byte size: ZERO | Content warning: NOT AN IMAGE

Slight backfocus or am I being Anal about this lens :confused:

Exif Data for #1:
# Exposure Time (1 / Shutter Speed) = 1/125 second = 0.00800 second
# Lens F-Number/F-Stop = 40/10 = F4.00
# Exposure Program = shutter priority (4)
# ISO Speed Ratings = 200
# Exif Version = 0221
# Original Date/Time = 2007:09:09 16:41:00
# Digitization Date/Time = 2007:09:09 16:41:00
# Components Configuration = 0x01,0x02,0x03,0x00 / YCbCr
# Shutter Speed Value (APEX) = 456510/65536
Shutter Speed (Exposure Time) = 1/125.00 second
# Aperture Value (APEX) = 262144/65536
Aperture = F4.00
# Exposure Bias (EV) = 0/3 = 0.00
# Metering Mode = pattern / multi-segment (5)
# Flash = Flash fired, compulsory flash mode
# Focal Length = 200/1 mm = 200.00 mm

Exif data for # 2
# Exposure Time (1 / Shutter Speed) = 1/125 second = 0.00800 second
# Lens F-Number/F-Stop = 11/1 = F11.00
# Exposure Program = shutter priority (4)
# ISO Speed Ratings = 200
# Exif Version = 0221
# Original Date/Time = 2007:09:09 16:43:10
# Digitization Date/Time = 2007:09:09 16:43:10
# Components Configuration = 0x01,0x02,0x03,0x00 / YCbCr
# Shutter Speed Value (APEX) = 456510/65536
Shutter Speed (Exposure Time) = 1/125.00 second
# Aperture Value (APEX) = 453435/65536
Aperture = F11.00
# Exposure Bias (EV) = 0/3 = 0.00
# Metering Mode = pattern / multi-segment (5)
# Flash = Flash fired, compulsory flash mode
# Focal Length = 200/1 mm = 200.00 mm

Exif data for # 3
# Exposure Time (1 / Shutter Speed) = 1/160 second = 0.00625 second
# Lens F-Number/F-Stop = 71/10 = F7.10
# Exposure Program = manual control (1)
# ISO Speed Ratings = 100
# Exif Version = 0221
# Original Date/Time = 2007:09:09 16:46:42
# Digitization Date/Time = 2007:09:09 16:46:42
# Components Configuration = 0x01,0x02,0x03,0x00 / YCbCr
# Shutter Speed Value (APEX) = 479850/65536
Shutter Speed (Exposure Time) = 1/160.00 second
# Aperture Value (APEX) = 370648/65536
Aperture = F7.10
# Exposure Bias (EV) = 0/3 = 0.00
# Metering Mode = pattern / multi-segment (5)
# Flash = Flash did not fire, compulsory flash mode
# Focal Length = 200/1 mm = 200.00 mm

Exif data for # 4
# Exposure Time (1 / Shutter Speed) = 1/80 second = 0.01250 second
# Lens F-Number/F-Stop = 71/10 = F7.10
# Exposure Program = manual control (1)
# ISO Speed Ratings = 100
# Exif Version = 0221
# Original Date/Time = 2007:09:09 16:49:05
# Digitization Date/Time = 2007:09:09 16:49:05
# Components Configuration = 0x01,0x02,0x03,0x00 / YCbCr
# Shutter Speed Value (APEX) = 414314/65536
Shutter Speed (Exposure Time) = 1/80.00 second
# Aperture Value (APEX) = 370648/65536
Aperture = F7.10
# Exposure Bias (EV) = 0/3 = 0.00
# Metering Mode = pattern / multi-segment (5)
# Flash = Flash did not fire, compulsory flash mode
# Focal Length = 200/1 mm = 200.00 mm

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StaticThought
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Sep 09, 2007 14:46 | #9

JUst done a comparison against my Kit lens, my Nifty and my Sigma 18-50 and this 70-200 came out way worse :cry:

Kit Lens:

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Nifty 50:

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StaticThought
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Sep 10, 2007 04:53 | #10

Any Idea's Guys :confused:

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Sarel

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Sep 10, 2007 05:26 | #11

TO my opinion, it seems that you have a slight back focus issue.

Sarel.

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kcbrown

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Sep 10, 2007 05:41 | #12

It's definitely backfocusing. It's ever so slight, but it's there. Ideally, the focus target would be fairly close to the center of the focus field like it is with your other two lenses. In the case of the 70-200, the focus target is partially within the focus field and partially outside of it.

I'd exchange it if you have that option.

"There are some things that money can't buy, but they aren't Ls and aren't worth having" -- Shooter-boy
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Sarel

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Sep 10, 2007 05:58 | #13

One more thing if I may add...

Please take some shots outside where the sun is behind you, not infront of you.
This lens is supposed to be one of the sharpest there is in the market today.
By the pictures I saw, it seems a bit soft...

Sarel.

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35L[COLOR=gray] | 85L Mk II | 135L | 300L[COLOR=gray] | 17-40L | 24-105L | 24-70L | 70-200L 2.8IS | EF 1.4X II | 580EX II

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StaticThought
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Sep 10, 2007 07:13 | #14

Thanks guys,

Just got back from Jessops after exchanging the lens above. The one I have now seems much better and even the guy in the shop said the other looked soft on a 40D he tried it on. Will see how this one goes. THanks again for the help. Will post some images later taken with this new 70-200 F4 L

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jgl927

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Sep 10, 2007 08:06 as a reply to @ StaticThought's post | #15

Good luck and enjoy your new replacement lens. Besides being the most inexpensive L lens in my bag, it is one of my sharpest (second only to my most expensive L).

Here is a full frame and 100% crop wide open (f4), ISO 200, 1/160 @ 200mm.

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