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PostPosted: Mon Oct 06, 2008 9:25 pm 
This is my first post so I thought why not start by adding another lens to the lens gallery. Here is a quick review and some pictures I’ve taken on my ‘Tamron AF 28-300mm F/3.5-6.3 XR DI VC LD Aspherical (IF) Macro’ (model A20) on my Canon EOS 450D.

I’m not going to list all the lens specification because it’s easy enough to look on Tamron’s web site. Instead I’ll spend my time listing the pros and cons of the lens, although the lists may be short! I’m new to SLR photography so excuse my simple terminology!

Pros

Compact
Fairly light
Excellent zoom range
Excellent all-round travel lens
Vibration compensation is excellent although not as smooth as Canon’s IS
Minimum focus distance of 0.49m
Well made, feels solid particularly compared to the Canon 18-55 IS kit lens (I see that one getting replaced soon!).

Cons

Lens extends to full zoom when carrying if not locked
Very slow to focus in low light on full zoom
Purple-fringing and slight blurring in corners on full zoom


You can click on 'Original Image' to display the original file but beware they are large files (between 3-7 MB).

1) Taken at Silverstone British Superbikes.
300mm, Tv, 1/800, F6.3, ISO 400, VC on, AI Servo AF, no editing.

Original Image
Image


2) Full zoom macro shot.
300mm, Av, 1/2000, F7.1, ISO 400, VC on, no editing.

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Image


3) Taken on Stanage Edge in the Peak District.
33mm, A-DEP, 1/640, F5.6, ISO 200, VC on, processed from RAW.

Original Image
Image

4) Baby Marmottes at Twycross Zoo, Leicestershire.
300mm, Program AE, 1/400, F7.1, ISO 320, VC on, slightly cropped to remove rear of another Marmotte!

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Image


5) The Moon from my back garden!
300mm, Program AE, 1/30, F6.3, Spot metering, - 1/3 EV, manual focus, VC off, RAW processed image and cropped.

Original Image
Image



Thanks for looking :)


Last edited by momark on Sat Oct 11, 2008 9:45 pm, edited 1 time in total.

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PostPosted: Mon Oct 06, 2008 9:53 pm 
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Joined: Sat Sep 30, 2006 4:30 pm
Posts: 9805
Location: UK
momark wrote:
...Thanks for looking :)

Thanks for sharing! A cracking start to your forum life here at CameraLabs so it is a great pleasure to bid you a warm welcome. 8)

Bob.

_________________
Olympus OM-D E-M1 + M.Zuiko Digital ED 12-40mm f/2.8, Lumix 7-14mm f/4, Leica DG Summilux 15mm f/1.7 ASPH, M.Zuiko Digital 45mm 1:1.8, M.Zuiko Digital ED 75mm 1:1.8.
Leica D Vario-Elmar 14mm-150mm f/3.5 - f/5.6 ASPH.
OM-D E-M5, H-PS14042E, Gitzo GT1541T, Arca-Swiss Z1 DP ball-head.
Astrophotography: TEC 140 'scope, FLI ML16803 camera, ASA DDM60 Pro mount.


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PostPosted: Tue Oct 07, 2008 7:38 am 
Welcome :D
Great pictures, especially the moon shot!
I need to try some moon and star photography once the skies over Denmark is gone (Could be a while ._.)
Thanks for sharing.

0eyvind


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 Post subject:
PostPosted: Sat Oct 11, 2008 7:08 pm 
Many thanks for posting these pictures. I've been considering this lens and it's good to see some results from it - and very nice they are, too!


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 Post subject:
PostPosted: Sat Oct 11, 2008 9:28 pm 
Thanks for the positive comments. I posted the pictures and the review because I spent ages searching the net for sample pictures from this lens before buying it. So I decided I would put a few samples on to help people out, particularly as this lens wasn't included in the lens gallery.

Anyway, here are a few more pictures from Twycross Zoo. All pictures are taken hand held. I haven't included the orignal full size versions this time. I tried to include a range of focal lengths from this lens, although still lacking some below 100mm.

There are some more superbike photo's here: http://www.momark.plus.com/cameralabs/sports/. If you save them to you PC, you can then view the EXIF info.

Enjoy!

6) A Lemur of some description!
200mm, Program AE, 1/200, F5.6, ISO 800, VC on, through glass! Some contrast adjustment to compensate for glass reflections.

Image

7) More Marmottes!
300mm, Program AE, 1/400, F7.1, ISO 500, VC on, no editing.

Image

8) A giraffe (obviously) indoors (again fairly obvious)
100mm, Program AE, 1/60, F5.0, ISO 400, flash on, VC on, no editing.

Image

9) Amur Leopard - very rare only approx 150 left in wild.
100mm, Program AE, 1/100, F5.6, ISO 640, VC on, through dirty glass with rain on! Some contrast adjustment to compensate for glass reflections.

Image

10) Amur Leopard again - my favourite I took that day.
300mm, Program AE, 1/160, F6.3, ISO 800, VC on, through dirty glass with rain on! Some contrast adjustment to compensate for glass reflections.

Image



Just to emphasise, all these were taken hand held mostly in poor light. It shows how much the vibration compensation really helps. Well worth paying the extra money to get VC.


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PostPosted: Thu Oct 30, 2008 4:53 am 
Wow! I really like the last picture a lot "posing tiger". I can't believe how beautiful the image was taken. great job.
You could sell this picture ;)

Edited: When you see the larger view of the first and second pictures there is a "CA" showing on the shiny areas of the motorcycle and the edges of the flower! blue color...
Why, it is not good thought!


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 Post subject:
PostPosted: Thu Oct 30, 2008 7:31 pm 
3abad wrote:
Wow! I really like the last picture a lot "posing tiger". I can't believe how beautiful the image was taken. great job.
You could sell this picture ;)


Thank you, I love the picture too. Would you like to buy a print? :wink:

I wish I could have taken the picture without the glass window in between me and the Leopard! I should get the chance in a couple of weeks because I'm going to Kenya on Safari :D :D :D

3abad wrote:
When you see the larger view of the first and second pictures there is a "CA" showing on the shiny areas of the motorcycle and the edges of the flower! blue color...
Why, it is not good thought!


I agree about the CA, it appears mainly at full zoom towards the corners. The corners also get a bit softer. I was aware of this before I bought the lens. You can't expect perfect optics in a lens with such a wide focal range in this price range.

I'm pleased with the lens for the money, if I had lots of money spare I would buy a canon L series lens!


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 Post subject:
PostPosted: Fri Oct 31, 2008 11:20 am 
momark wrote:
I wish I could have taken the picture without the glass window in between me and the Leopard! I should get the chance in a couple of weeks because I'm going to Kenya on Safari :D :D :D


Good luck ;)

momark wrote:
I'm pleased with the lens for the money, if I had lots of money spare I would buy a canon L series lens!


Good luck :)


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