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PostPosted: Thu Jan 29, 2009 11:46 pm 
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Posts: 619
Location: essex uk
Hi everybody, i have just purchased the sigma 18-200mm lens, and these are the first photos i have taken with this lens. Many a time i have been in situations where i havent been able to change my lens due to dusty places and sacrificed many a photo because i never had the right lens on. So im hoping this little `baby` siggy is the answer. Im not as experienced as many of you on cl and so i have on taken on program mode.Both have been cropped and i have tweaked the exposure contrast. I am going to London on Sunday, and intend to really see what this little siggy can do.

Image

Image
Both were taken at 24mm and ISO 400
#1 = f.5.6 1/60
#2 = f.6.3 1/80
Hoping to go through the whole range when i give this a proper try out.
I have posted these on photo of the day, sorry to double post, and if this wrong please delete if necessary. Regards sue :)

p.s. hope this post for this lens is ok, only i have not seen one on here.

_________________
canon 400D
18-55 lens
tamron70-300 lens
sigma 18-200 os lens

All my photos are clickable
my flickr
http://www.flickr.com/photos/27828538@N03/


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PostPosted: Fri Jan 30, 2009 4:40 am 
Congrats on the new glass naniani! I'm sure you'll be happy with your decision. The camera mode i find myself using the most it the Av (aperture priority). occasionally if i really want full control of my camera i'll switch it into full manual. You just need to try new things (thats my new years resolution). I look forward to seeing more thoughts of the lens!


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PostPosted: Fri Jan 30, 2009 5:34 am 
Nice photos!

I debated between the Nikkor 18-200 and Sigma 18-200 and ended up with the Nikkor myself.

Looking forward to seeing more photos from you and that great lens!


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PostPosted: Fri Jan 30, 2009 11:36 am 
Nice photos! Seems really sharp!
Can we get some more examples??


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PostPosted: Wed Feb 11, 2009 9:43 pm 
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Joined: Fri Jun 13, 2008 5:23 pm
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Location: essex uk
I am really loving this new lens, here a a couple more photos. sue :)

Image

Image

No1= f/6.3 ISO200 1/200sec 200mm
No2= f/9 ISO100 1/125sec 35mm
Both had contrast tweaked and shot on auto.

_________________
canon 400D
18-55 lens
tamron70-300 lens
sigma 18-200 os lens

All my photos are clickable
my flickr
http://www.flickr.com/photos/27828538@N03/


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PostPosted: Mon Mar 23, 2009 11:43 pm 
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Joined: Fri Jun 13, 2008 5:23 pm
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Location: essex uk
A few more photos with this brilliant lens.

No.1.
Image

No.2.
Image

No.3.
Image

Nothing like a bit of rust, dirt and mud! :lol: Sue

#1. F/13 1/400 SEC 42mm prog mode
#2. F/11 1/125 sec 200mm AE mode
#3. f/8 1/250 sec 154mm prog mode
ALL at ISO 400 contrast tweaked.

_________________
canon 400D
18-55 lens
tamron70-300 lens
sigma 18-200 os lens

All my photos are clickable
my flickr
http://www.flickr.com/photos/27828538@N03/


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PostPosted: Tue Mar 24, 2009 1:18 pm 
Excellent photos, nice showcase of the focal range. Been looking at replacing my 17-85 with a 18-200 or 28-135 ish walkaround. I only just noticed that this 'OS' Sigma has image stabilisation :roll: cos their previous one didn't? Tis something I deem useful at telephoto end. As this pretty much squares up against Canon's 18-200 offering, the main difference is price with Sigma being two thirds that of the Canon.

The images are sharp here, but do you or anyone have any comments/experience about how good the stabilisation is? Or generally any pros and cons vs the Canon?


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PostPosted: Wed Mar 25, 2009 11:02 pm 
@naniani: Are those shots hand held? I have this same lens but even with the OS enabled I cannot get such sharp shots.

Here are my sample pics taken with this lens:

Image
51mm
f5.0
1/320
ISO200


Image
96mm
f5.6
1/100
ISO500



Image
200mm
f6.3
1/125
ISO800
In this picture I was trying to capture the bee leaving the flower but it did not come out too sharp.

All of these pictures were hand-held and with OS on. The lens is very heavy but I don't care. I like the range and the build quality seems good. I do not know how good the OS system is since I have nothing to compare it to but when you scrutinize my images you can see that they are not that sharp when hand-held.


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PostPosted: Thu Mar 26, 2009 7:25 pm 
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Joined: Fri Jun 13, 2008 5:23 pm
Posts: 619
Location: essex uk
Thanks eveyone for your comments.

Sighman, i am extremely pleased with this lens, and since i bought this in January i have used nothing else, i love it. I have the OS on all the time, and have been happy with the results of my photos. I wanted a lens for travelling, and this lens was what i was looking for. Although i have a Canon camera, the cost of the canon lens was a lot more than the siggy, and watching the pennies, it was the siggy that won. It is a sturdy made lens, and i thought it would be heavier than it is, but i was surprised, although the barrel can be a little bit stiff turning from 50 - 80mm but i am now used to it. I actually tried this lens on my camera in the shop before purchasing it and i know it was meant for me. :lol: sue

Hugo, yes all my photos are hand-held, i have not used my tripod yet. I personally think you first two photos are fine its the last one that i think is not so sharp. sue

_________________
canon 400D
18-55 lens
tamron70-300 lens
sigma 18-200 os lens

All my photos are clickable
my flickr
http://www.flickr.com/photos/27828538@N03/


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PostPosted: Thu Mar 26, 2009 8:24 pm 
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Location: UK
@Hugo, hi, may I make a suggestion. With expererience of my nikkor 70-300 I've learn't (from others) as well as use, the lens gets sharper using a smaller aperture ie. f8-11. i think this helps with a wider depth of field but also sharpness at the point of focus. With your OS on this lens slower shutter speeds should be OK without shake.
John :)

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Nikon D80, D40 and various lenses.


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PostPosted: Mon Mar 30, 2009 4:57 am 
GCJ wrote:
@Hugo, hi, may I make a suggestion. With expererience of my nikkor 70-300 I've learn't (from others) as well as use, the lens gets sharper using a smaller aperture ie. f8-11. i think this helps with a wider depth of field but also sharpness at the point of focus. With your OS on this lens slower shutter speeds should be OK without shake.
John :)


Thank you for the suggestion. The thing with this lens is that the maximum aperture size is pretty small already. At 200mm it is f6.3! Decreasing it even more would almost guarantee blurry hand held pictures even with OS enabled.

I will try and decrease the aperture from now on and see how they come out. Hopefully I can steady my hand enough :D

Here are some more samples for whoever is considering buying this lens:

Image
173mm
f6.3
1/80
ISO800

Image
200mm
f9.0
1/200
ISO320

Image
200mm
f9.0
1/200
ISO400


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PostPosted: Sun Apr 05, 2009 3:52 pm 
Oh and here are some pictures of the lens itself:


Image


Image

Image

Image

Image

Image


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PostPosted: Tue Apr 07, 2009 9:41 pm 
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Joined: Fri Jun 13, 2008 5:23 pm
Posts: 619
Location: essex uk
Image

f/8
ISO 200
1/160
63mm

_________________
canon 400D
18-55 lens
tamron70-300 lens
sigma 18-200 os lens

All my photos are clickable
my flickr
http://www.flickr.com/photos/27828538@N03/


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PostPosted: Fri Apr 10, 2009 7:47 pm 
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Joined: Fri May 16, 2008 6:32 pm
Posts: 154
Location: UK
I have a question regarding the minimum aperture of f6.3 at the wide end of the lens.
Some brochures and literature suggest that cross-type sensors will only work with lenses of aperture minimum of f5.6, sooo, does this effect the longer 200mm end of the lens in terms of AF performance? I would consider lenses such as this if i was sure about the AF performance, so basically, i ask of you, have you noticed any trouble with such aperture? Or does anyone know about such a problem?

_________________
Nikon D80
AF-S 18-135mm f3.5-5.6 Nikon {} AF 50mm f1.8 Nikon {} AF-S 70-300mm f4.5-5.6 VR ED Nikon {} Nikon AF-S 105mm VRII f2.8 Micro ED N
MB-D80 battery grip {} 4GB Sandisk extreme SDHC {} Manfrotto 109xb & 804rc2head {} Lowepro Primus AW {} SB800
Flickr: http://www.flickr.com/photos/27747651@N04/


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PostPosted: Fri Apr 10, 2009 7:51 pm 
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Joined: Fri May 16, 2008 6:32 pm
Posts: 154
Location: UK
GCJ wrote:
@Hugo, hi, may I make a suggestion. With expererience of my nikkor 70-300 I've learn't (from others) as well as use, the lens gets sharper using a smaller aperture ie. f8-11. i think this helps with a wider depth of field but also sharpness at the point of focus. With your OS on this lens slower shutter speeds should be OK without shake.
John :)


As for the sharpness, check the MTF resolution charts on various websites, here is the MTF charts for the Nikon 70-300mm f4.5-5.6VR on
http://www.photozone.de

Herehttp://www.photozone.de/nikon--nikkor-aps-c-lens-tests/250-nikkor-af-s-70-300mm-f45-56-g-if-ed-vr-review--test-report?start=1

_________________
Nikon D80
AF-S 18-135mm f3.5-5.6 Nikon {} AF 50mm f1.8 Nikon {} AF-S 70-300mm f4.5-5.6 VR ED Nikon {} Nikon AF-S 105mm VRII f2.8 Micro ED N
MB-D80 battery grip {} 4GB Sandisk extreme SDHC {} Manfrotto 109xb & 804rc2head {} Lowepro Primus AW {} SB800
Flickr: http://www.flickr.com/photos/27747651@N04/


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